{"title":"Boilers","description":"\u003cdiv class=\"page-heading-wrap\"\u003e\n\u003cdiv class=\"cate-desc row ipad\"\u003e\n\u003cp class=\"text-body font-regular text-gray-800 leading-[24px] pt-[9px] pb-[2px]\" dir=\"ltr\"\u003e\u003cspan\u003eDiscover the perfect blend of luxury, affordability, and top-tier performance with our Boiler Collection, designed to deliver the ultimate heating experience for both homes and businesses. Whether you're a homeowner, tradesperson, or contractor, we've got the perfect boiler for you.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","products":[{"product_id":"oatey-hercules-scrout-boilet-cleaner-35100","title":"Oatey Hercules Scrout Boilet Cleaner - 35100","description":"Hercules Scout Steam Boiler Cleaner stops priming and surging in minutes and helps eliminate pipe hammering. Behold the power of Hercules, products built to last and trusted by plumbers to withstand even the toughest conditions.\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eRemoves rust, scale, oil, foam and impurities without draining or flushing system\u003c\/li\u003e\n\u003cli\u003eNon-toxic, odorless\u003c\/li\u003e\n\u003cli\u003eCleans pressure vessels, steam kettles, heat exchangers, steam generators and tanks\u003c\/li\u003e\n\u003cli\u003eContains fast-acting Trisodium Phosphate (TSP)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Oatey","offers":[{"title":"Default Title","offer_id":43931348860979,"sku":"CHEM35100","price":31.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/81LW9kdtlmL.jpg?v=1784196711"},{"product_id":"oatey-hercules-cryo-tek-original-antifreeze-5-gallons-35260","title":"Oatey Hercules Cryo-Tek Original Antifreeze 5 Gallons - 35260","description":"Hercules Cryo-Tek Original Antifreeze is a ready to use 45% Virgin Propylene Glycol formula. It's designed for hydronic heating and cooling closed loop systems, most solar heating systems, snow melts, radiant heat and general plumbing systems. Behold the power of Hercules, products built to last and trusted by plumbers to withstand even the toughest conditions.\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eThe triple protection inhibitor stabilizes pH to prevent corrosion, chelates, hard water minerals, and inhibit scale and sediment formation\u003c\/li\u003e\n\u003cli\u003eNot for use with galvanized, CPVC or aluminum\u003c\/li\u003e\n\u003cli\u003eUsed in systems fabricated with metal, plastics and rubber piping, fittings, seals and other parts\u003c\/li\u003e\n\u003cli\u003eFor heating systems requiring freeze protection as well as corrosion prevention\u003c\/li\u003e\n\u003cli\u003eCryo-Tek is \"GRAS\" (Generally Recognized As Safe) for incidental contact with food\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Oatey","offers":[{"title":"Default Title","offer_id":43931349188659,"sku":"CHEM35260","price":165.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/SalsifySquare_800-032628352605_H_001.jpg?v=1784196719"},{"product_id":"oatey-boiler-and-heating-system-cleaner-1-qt-bottle-in-yellow-35206","title":"Oatey Boiler and Heating System Cleaner 1 qt Bottle in Yellow - 35206","description":"Hercules, QT, Boiler \u0026amp; Heating System Cleaner, Liquid Cleaner \u0026amp; Corrosion Preventative Treatment For Hydronic Boilers \u0026amp; Heating Systems, Removes Rust \u0026amp; Scale, Emulsifies Oil, Grease, \u0026amp; Sludge, Prevents Foaming, Will Not Harm Rubber Or Plastic Components, Add To Any Hydronic System To Prevent Boiler Scale Build Up Corrosion \u0026amp; Clogging Of Heating System Valves, Helps Maximize Boiler Efficiency. The product is manufactured in China. Easy installation and easy handling.\n\n\n\nSpecifically formulated to clean and condition steam and hot water boilers and hydronic heating systems. Contains silicone which protects pumps by lubricating seals; frees and lubricates zone valves. Prevents clogging of hot water valves and other flow valves and helps stop priming and foaming with a special anti-foam agent. Safe and simple to use. Promotes maximum boiler efficiency and saves fuel. Removes oil, sludge, loose rust and scale and prevents corrosion. No draining or flushing is necessary unless system is very oily, rusty, or in unusually dirty condition. Safe for use in systems with rubber and plastic components. Compatible with any type of Hercules Cryo-tek anti-freeze, other propylene glycol based anti-freeze products and commonly used chemical additives and boiler treatment compounds.\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eThe product is manufactured in China\u003c\/li\u003e\n\u003cli\u003eThe product is highly durable and easy to use\u003c\/li\u003e\n\u003cli\u003eEasy installation and easy handling\u003c\/li\u003e\n\u003cli\u003eLiquid cleaner and corrosion preventative treatment\u003c\/li\u003e\n\u003cli\u003eHelps maximize boiler efficiency\u003c\/li\u003e\n\u003cli\u003eContains silicone which protects pumps by lubricating seals\u003c\/li\u003e\n\u003cli\u003eHelps stop priming and foaming with a special anti-foam agent\u003c\/li\u003e\n\u003cli\u003eSafe for use in systems with rubber and plastic components\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Oatey","offers":[{"title":"Default Title","offer_id":43931386085427,"sku":"CHEM35206","price":33.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/81hDzTsVaWL.jpg?v=1784198195"},{"product_id":"quickstrap-expansion-tank-mounting-bracket-5-gal-capacity-qs-u-c","title":"QuickStrap Expansion Tank Mounting Bracket (5 Gal. Capacity) - QS-U-C","description":"Keep your water tanks securely fastened to the wall with the HoldRite QuickStrap universal expansion water pressure tank bracket. Composed of durable galvanized stainless steel for long-lasting reliability, this mounting kit includes (1) mounting bracket, (2) support straps, and (2) screws, and can support 5-gallon hot water tanks up to 13 inches in diameter.\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eThe water heater tank mounting bracket features straps that secure the water tank to the wall and take weight load off thermal pipes\u003c\/li\u003e\n\u003cli\u003eThe water heater wall mount kit includes (1) mounting bracket, (2) support straps, and (2) screws\u003c\/li\u003e\n\u003cli\u003eWater heater mounting bracket can support 5-gallon hot water tanks up to 13 inches in diameter\u003c\/li\u003e\n\u003cli\u003eHeated water tank brackets are composed of strong and sturdy galvanized stainless steel\u003c\/li\u003e\n\u003cli\u003eWater heater mounting brackets are compliant with Uniform Plumbing Code and International Plumbing Code requirements\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HoldRite","offers":[{"title":"Default Title","offer_id":43931680538675,"sku":"HOLQSUC","price":34.92,"currency_code":"USD","in_stock":true}]},{"product_id":"rectorseal-8-way-boiler-water-treatment-68712","title":"Rectorseal 8 Way Boiler Water Treatment - 68712","description":"8-Way is a complete boiler water treatment (nonchromate, biodegradable) for both steam and hot water systems.\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003e8-Way can be used for cleaning very dirty steam boilers. Boilers with excessive scale, rust and muck.\u003c\/li\u003e\n\u003cli\u003e8-Way can be used to maintain clean, rust free water on new or existing systems.\u003c\/li\u003e\n\u003cli\u003eRemoves sludge.\u003c\/li\u003e\n\u003cli\u003eRemoves rust scale.\u003c\/li\u003e\n\u003cli\u003eInhibits boiler corrosion.\u003c\/li\u003e\n\u003cli\u003eInhibits steam line corrosion.\u003c\/li\u003e\n\u003cli\u003ePrevents oxygen pitting.\u003c\/li\u003e\n\u003cli\u003eInhibits lime scale.\u003c\/li\u003e\n\u003cli\u003ePrevents surging and foaming.\u003c\/li\u003e\n\u003cli\u003eControls pH with a color indicator.\u003c\/li\u003e\n\u003cli\u003eDoes not contain petroleum distillates.\u003c\/li\u003e\n\u003cli\u003eWill not damage seals and gaskets.\u003c\/li\u003e\n\u003cli\u003e32 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rectorseal","offers":[{"title":"Default Title","offer_id":43931801813043,"sku":"REC68712","price":36.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/68712-3.jpg?v=1782929227"},{"product_id":"thermasol-steamvection-square-brass-steam-head-in-polished-chrome-svsq-pc","title":"Thermasol SteamVection Square Brass Steam Head in Polished Chrome - SVSQ-PC","description":"ThermaSol engineers have used the proven science of convection to create an industry first: the SteamVection steam head. This state-of-the-art design delivers floor-to-ceiling temperature uniformity within the steam shower while adhering to ThermaSol's trademark functionality, design and safety. For users, this means consistent and even temperature zones   no longer variable heat ranges that typically occur in steam showers. ThermaSol's steam head also allows the closest proximity to the outlet called, \"the steam emitting area.\" This is a mere three inches from the wall, thereby avoiding intrusion into one's usable shower space.\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eCovered under Thermasol's 5 year warranty\u003c\/li\u003e\n\u003cli\u003eSteamVection steam head is whisper quiet\u003c\/li\u003e\n\u003cli\u003eFeatures a built in reservoir for aromatherapy oils\u003c\/li\u003e\n\u003cli\u003eModern square design\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Thermasol","offers":[{"title":"Default Title","offer_id":43931802599475,"sku":"THESVSQPC","price":185.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/thermasol-svsq-pc-929529.jpg?v=1784203132"},{"product_id":"new-yorker-cgs-c-steam-series-70-000-btu-steam-boiler-cgs30cni-h","title":"New Yorker CGS-C Steam Series 70,000 BTU Steam Boiler - CGS30CNI-H","description":"\u003ch2\u003eUpgrade Your Home Comfort With The New Yorker CGS-C CGS30CNI-H 70,000 BTU Cast-Iron Steam Boiler\u003c\/h2\u003e\n\u003cp\u003e\nWant classic steam heat that’s simple and dependable? The \u003cstrong\u003eNew Yorker CGS‑C CGS30CNI‑H\u003c\/strong\u003e is a compact, \n\u003cstrong\u003echimney‑vented gas steam boiler\u003c\/strong\u003e that brings proven cast‑iron durability and easy service to smaller homes and apartments. With \u003cstrong\u003eup to 81.9% AFUE\u003c\/strong\u003e, \u003cstrong\u003eelectronic ignition\u003c\/strong\u003e, and a factory \u003cstrong\u003event damper\u003c\/strong\u003e, it’s designed to cut standby losses compared with older standing‑pilot units—while delivering dry, even steam to your radiators.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e New Yorker\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e CGS30CNI‑H (CGS‑C Steam Series)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Gas‑Fired \u003cstrong\u003eSteam\u003c\/strong\u003e Boiler, Cast Iron, Category I Natural Draft (Chimney Vent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuel:\u003c\/strong\u003e Natural Gas (LP conversion kit available)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput (NG):\u003c\/strong\u003e \u003cstrong\u003e69,000 BTU\/h\u003c\/strong\u003e (70,000 BTU class)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDOE Heating Capacity:\u003c\/strong\u003e \u003cstrong\u003e56,000 BTU\/h\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNet IBR (Steam):\u003c\/strong\u003e \u003cstrong\u003e42,000 BTU\/h\u003c\/strong\u003e (≈ \u003cstrong\u003e175 sq. ft. EDR\u003c\/strong\u003e)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAFUE:\u003c\/strong\u003e Up to \u003cstrong\u003e81.9%\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIgnition:\u003c\/strong\u003e Electronic (intermittent) with factory vent damper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVenting:\u003c\/strong\u003e Built‑in draft diverter; \u003cstrong\u003e4\" flue\u003c\/strong\u003e to a lined masonry or listed metal chimney\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSteam Supply \/ Return Tappings:\u003c\/strong\u003e \u003cstrong\u003e2\"\u003c\/strong\u003e NPT (each)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Inlet:\u003c\/strong\u003e \u003cstrong\u003e3\/4\"\u003c\/strong\u003e NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical:\u003c\/strong\u003e 120V, 60 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafety \u0026amp; Controls:\u003c\/strong\u003e Probe‑type \u003cstrong\u003eLWCO\u003c\/strong\u003e, pressure limit control, \u003cstrong\u003e15 psi safety valve\u003c\/strong\u003e, blocked‑vent \u0026amp; rollout switches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions (W × D × H):\u003c\/strong\u003e ~\u003cstrong\u003e12‑3\/4\" × 28\" × 40‑7\/16\"\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e \u003cstrong\u003e10‑Year Limited\u003c\/strong\u003e heat exchanger (residential; see terms)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProven Cast Iron Steam Performance\u003c\/h4\u003e\n\u003cp\u003e\nThe CGS‑C’s \u003cstrong\u003ecast‑iron heat exchanger\u003c\/strong\u003e, stainless steel burners, and \u003cstrong\u003emetal section connectors\u003c\/strong\u003e deliver long service life and steady, dry steam—ideal for one‑pipe and two‑pipe radiator systems.\n\u003c\/p\u003e\n\n\u003ch4\u003eRight‑Sized For Smaller Homes\u003c\/h4\u003e\n\u003cp\u003e\nWith a \u003cstrong\u003e42,000 BTU\/h Net IBR\u003c\/strong\u003e rating (about \u003cstrong\u003e175 sq. ft. EDR\u003c\/strong\u003e), this model is a smart match for compact homes and apartments when sized to your connected radiation. That helps radiators heat evenly without short‑cycling.\n\u003c\/p\u003e\n\n\u003ch4\u003eSimple, Code‑Compliant Chimney Venting\u003c\/h4\u003e\n\u003cp\u003e\nA built‑in \u003cstrong\u003edraft diverter\u003c\/strong\u003e keeps the jacket low for tight basements, and the boiler vents to a properly lined chimney with a standard \u003cstrong\u003e4‑inch flue\u003c\/strong\u003e for straightforward replacements.\n\u003c\/p\u003e\n\n\u003ch4\u003eFuel‑Saving Ignition \u0026amp; Vent Damper\u003c\/h4\u003e\n\u003cp\u003e\nThe boiler’s \u003cstrong\u003eelectronic ignition\u003c\/strong\u003e fires only on a call for heat, and the factory \u003cstrong\u003event damper\u003c\/strong\u003e helps reduce standby losses—key efficiency upgrades versus older standing‑pilot steam boilers.\n\u003c\/p\u003e\n\n\u003ch4\u003eInstaller‑Friendly Near‑Boiler Piping\u003c\/h4\u003e\n\u003cp\u003e\nLarge \u003cstrong\u003e2‑inch\u003c\/strong\u003e supply and return tappings support clean headers and equalizers for better steam quality. Standard safety controls include a \u003cstrong\u003elow water cut‑off\u003c\/strong\u003e, \u003cstrong\u003epressure limit\u003c\/strong\u003e, and \u003cstrong\u003e15 psi safety valve\u003c\/strong\u003e.\n\u003c\/p\u003e","brand":"NEW YORKER","offers":[{"title":"Default Title","offer_id":43931892973619,"sku":"BURCGS30CNIH","price":3272.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/2_CGS-C-Steam-Series.png?v=1783017756"},{"product_id":"viessmann-vitodens-200-w-352-000-btu-gas-fired-condensing-boiler-less-manifold-b2hah65","title":"Viessmann Vitodens 200-W 352,000 BTU Gas Fired Condensing Boiler less Manifold - B2HAH65","description":"\u003ch2\u003eOutfit Your System With Viessmann B2HAH65 Vitodens 200-W 352k BTU Multi-Boiler Package (Less Manifold)\u003c\/h2\u003e \u003cp\u003e Need serious heat with built-in redundancy for large homes or light commercial spaces? The \u003cstrong\u003eViessmann B2HAH65\u003c\/strong\u003e package delivers two wall-hung \u003cstrong\u003eVitodens 200-W B2HA 352k\u003c\/strong\u003e condensing boilers for high output, quiet operation, and reliable staging—without the factory manifold, so you can build your own primary loop to suit the job. \u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Viessmann\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e B2HAH65\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Two-Boiler Package (Less Manifold), Gas-Fired Wall-Mounted Condensing Boilers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSize\/Capacity:\u003c\/strong\u003e 2 × 352,000 BTU\/h input (704,000 BTU\/h total)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial\/Finish:\u003c\/strong\u003e Stainless-steel Inox-Radial heat exchanger; MatriX modulating cylinder burner\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e Up to 94.5% CSA thermal efficiency; modulation up to 6.5:1 per boiler; altitude operation up to 10,000 ft\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConnections\/Fit:\u003c\/strong\u003e Direct vent (coaxial or two-pipe); max vent runs up to 131 ft (layout-dependent); common venting up to 4 boilers; 120 VAC, 60 Hz\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Two Vitodens 200-W B2HA 352k boilers; \u003cem\u003eno prefabricated manifold\/header\u003c\/em\u003e (package is “less manifold”); controls\/accessories vary by configuration—see manual\/price list\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e ASME Section IV \u0026amp; CSA B51 construction; tested to AHRI BTS-2000; NG\/LP convertible\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Viessmann limited warranty; terms vary by application (see manufacturer)\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eSave Fuel With High Efficiency\u003c\/h4\u003e \u003cp\u003eThe Vitodens 200-W line is rated up to 94.5% thermal efficiency, helping cut operating costs while delivering consistent comfort across large zones. Staged firing further reduces short-cycling and fuel waste.\u003c\/p\u003e \u003ch4\u003eEveryday Performance You Can Feel\u003c\/h4\u003e \u003cp\u003eEach boiler modulates up to 6.5:1 for smooth, quiet heat delivery. Running two units provides 704k BTU\/h total input and built-in redundancy—ideal for critical spaces that can’t go cold.\u003c\/p\u003e \u003ch4\u003eBuilt To Last\u003c\/h4\u003e \u003cp\u003eViessmann’s Inox-Radial stainless-steel heat exchanger and MatriX cylinder burner are engineered for durability, clean combustion, and low maintenance over years of service.\u003c\/p\u003e \u003ch4\u003eInstaller-Friendly Flexibility\u003c\/h4\u003e \u003cp\u003eDirect-vent options (coaxial or twin-pipe) with long permitted runs, plus support for common venting up to four boilers, streamline vent design. “Less manifold” lets you configure your own primary loop and headers for custom hydraulics.\u003c\/p\u003e \u003ch4\u003eSmart Controls \u0026amp; Compatibility\u003c\/h4\u003e \u003cp\u003eVitodens 200-W supports advanced outdoor reset and cascade control architectures to coordinate multiple boilers and mixed-temperature circuits—so the plant runs efficiently across changing loads.\u003c\/p\u003e \n\u003cp\u003e Want to learn more about this boiler? Read more about it in our article on \u003ca href=\"https:\/\/plumbing-deals.com\/blogs\/plumbing-blog\/the-best-steam-boilers-of-2025-a-comprehensive-guide\"\u003ethe best steam boilers.\u003c\/a\u003e\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":43932128149555,"sku":"VIESB2HAH65","price":26433.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/Vitodens-200-W_-B2HA-Cascade_1280x1280_transparent.png?v=1784049151"},{"product_id":"viessmann-vitocrossal-200-399-000-btu-ci2-floor-standing-gas-condensing-boiler-ci2399","title":"Viessmann Vitocrossal 200 399,000 BTU CI2 Floor Standing Gas Condensing Boiler - CI2399","description":"\u003ch2\u003eViessmann Vitocrossal 200 CI2‑399 | 399,000 BTU Floor‑Standing Gas Condensing Boiler\u003c\/h2\u003e\n\n\u003cp\u003e\nLooking for big output in a compact footprint? The \u003cstrong\u003eVitocrossal 200 CI2‑399\u003c\/strong\u003e is a \u003cstrong\u003efloor‑standing, high‑efficiency gas condensing boiler\u003c\/strong\u003e that’s easy to live with and easy to service. 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Solo Boiler CH 90k, NG\u003cbr\u003e\u003cbr\u003e\u003ch5\u003eFeatures and Benefits\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eSmart Sense Gas Adaptive Technology\u003c\/li\u003e\n\u003cli\u003eSmart Connect - WIFI Remote Access and Bluetooth with Rinnai Central App\u003c\/li\u003e\n\u003cli\u003e7 Heating Reset Curves\u003c\/li\u003e\n\u003cli\u003eHigh Altitude Approved up to 10,100 ft.\u003c\/li\u003e\n\u003cli\u003eAdvanced Controls with Quick Set-Up Screen\u003c\/li\u003e\n\u003cli\u003eImproved Front Panel Display\u003c\/li\u003e\n\u003cli\u003e4 Built-in Zones\u003c\/li\u003e\n\u003cli\u003eSpace Heating\u003c\/li\u003e\n\u003cli\u003eSmart Sense Gas Adaptive Technology\u003c\/li\u003e\n\u003cli\u003eCall 833-805-0435 for factory direct installation assistance in your area\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eProduct Specifications\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eMAX  BTU        Capacity: 90000\u003c\/li\u003e\n\u003cli\u003eFuel Type: Natural Gas or Liquid Propane\u003c\/li\u003e\n\u003cli\u003eVoltage: AC 120 Volts, 60 Hz\u003c\/li\u003e\n\u003cli\u003eIgnition Type: Direct Electronic Ignition\u003c\/li\u003e\n\u003cli\u003eVenting Type: Concentric, Twin Pipe, Room Air\u003c\/li\u003e\n\u003cli\u003eStorage Capacity: 0.75 Gallons \/ (2.8 L)\u003c\/li\u003e\n\u003cli\u003eGas Connection: 3\/4\" MNPT\u003c\/li\u003e\n\u003cli\u003eCondensate Connection: 1\/2\" NPT\u003c\/li\u003e\n\u003cli\u003eRecirculation Capable: No\u003c\/li\u003e\n\u003cli\u003eWi-Fi Capable: Yes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rinnai","offers":[{"title":"Default Title","offer_id":43932155412531,"sku":"RINIP090S","price":2433.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/nhkkljzo4doux4itzfqa_5bc0b177-d0b9-450b-85d7-5467d681cd92.png?v=1784049378"},{"product_id":"rinnai-i-series-plus-c-9-8-gpm-120-000-btu-central-heating-and-199-000-btu-hot-water-natural-gas-or-liquid-propane-condensing-combination-boiler-ip120199c","title":"Rinnai I Series Plus C 9.8 GPM 120,000 BTU Central Heating and 199,000 BTU Hot Water Natural Gas or Liquid Propane Condensing Combination Boiler - IP120199C","description":"\u003ch2\u003eEfficient Comfort Redefined with the Rinnai I Series Plus C 9.8 GPM 120,000  BTU        Central Heating and 199,000  BTU        Hot Water Condensing Combination Boiler - IP120199C \u003c\/h2\u003e\n\u003cp\u003eThe Rinnai I Series Plus C stands out due to its combination of high efficiency, dual functionality, and advanced features. Homeowners looking for a reliable and efficient heating solution will find this boiler to be an excellent choice. Its ability to provide both central heating and hot water, along with its fuel flexibility and compact design, make it a versatile and practical addition to any home. \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBrand:\u003c\/b\u003e Rinnai \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMPN:\u003c\/b\u003e IP120199C \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSeries:\u003c\/b\u003e I Series Plus \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e BTU        Capacity:\u003c\/b\u003e 120,000 - 199,000  BTU        \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFuel Type:\u003c\/b\u003e Natural Gas or Liquid Propane \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInstallation:\u003c\/b\u003e Indoor \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVoltage:\u003c\/b\u003e AC 120 Volts, 60 Hz \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIgnition Type:\u003c\/b\u003e Direct Electronic Ignition \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVenting Type:\u003c\/b\u003e Concentric, Twin Pipe, Room Air \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFlow Rate (GPM):\u003c\/b\u003e 0.26 to 9.8 \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTemperature Range:\u003c\/b\u003e 98-140 \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStorage Capacity:\u003c\/b\u003e 0.88 Gallons \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGas Connection:\u003c\/b\u003e 3\/4\" MNPT \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWater Connection:\u003c\/b\u003e 3\/4\" MNPT \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCondensate Connection:\u003c\/b\u003e 1\/2\" NPT \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRecirculation Capable:\u003c\/b\u003e Yes \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWifi Capable:\u003c\/b\u003e Yes \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Rinnai I Series Plus C is a top-notch heating system that stands out for its impressive efficiency rating, made possible by advanced condensing technology. This technology works by capturing and reusing heat that would otherwise be wasted. By maximizing energy use, it significantly reduces overall energy consumption, making it an eco-friendly choice that helps lower your utility bills. Additionally, its innovative design ensures consistent performance and reliable heating, perfect for those looking to combine cost savings with comfort and sustainability. \u003c\/p\u003e\n\u003cp\u003eThis combination boiler offers the convenience of providing both central heating and hot water, making it a versatile and efficient solution for your home. Designed to meet your heating needs, it delivers a central heating capacity of 120,000  BTU       , ensuring your home stays warm and comfortable even during the coldest months. Additionally, its impressive hot water capacity of 199,000  BTU        guarantees a steady supply of hot water for showers, baths, and other household needs. With its reliable performance and ability to handle multiple demands, this boiler is an excellent choice for modern households looking for efficiency and comfort. \u003c\/p\u003e\n\u003cp\u003eThe boiler delivers an impressive flow rate of 9.8 gallons per minute, providing a consistent and reliable supply of hot water to multiple fixtures at the same time. This makes it perfect for larger households or homes with greater hot water demands, such as those with multiple bathrooms, large tubs, or busy kitchens. With its efficiency and capacity, you can enjoy uninterrupted hot water, even during peak usage times. \u003c\/p\u003e\n\u003cp\u003eDesigned to operate with either natural gas or liquid propane, the Rinnai I Series Plus C offers exceptional flexibility in fuel choice, making it highly adaptable to various household energy sources. This versatility ensures it can seamlessly integrate into different homes, whether you rely on a municipal gas line or a propane tank, while still delivering reliable and efficient performance for your heating needs. \u003c\/p\u003e\n\u003cp\u003eThe compact design of the boiler makes it an ideal choice for homes where space is at a premium, as it can be easily installed in tight or awkward areas without any hassle. Its sleek, wall-mounted design not only saves valuable floor space but also provides a clean and modern look, blending seamlessly into your home. This makes it a practical and stylish solution for maximizing space while ensuring efficient heating. \u003c\/p\u003e\n\u003cp\u003eEquipped with an intuitive control system, the boiler allows for precise temperature adjustments and easy monitoring of system performance. The user-friendly interface makes it simple to customize settings to suit your specific needs, whether you’re looking to maintain a consistent warmth throughout your home or adjust temperatures for energy savings. This ensures optimal comfort, improved efficiency, and reliable performance for years to come. \u003c\/p\u003e\n\u003cp\u003eRinnai is a leading name in the heating industry, known for its commitment to innovation, quality, and reliability. With over a century of experience, Rinnai has built a reputation for producing high-performance heating solutions that homeowners trust. \u003c\/p\u003e\n\u003cp\u003eUpgrade your home heating system with the Rinnai I Series Plus C Condensing Combination Boiler, and experience the perfect blend of efficiency, reliability, and convenience. \u003c\/p\u003e\n\u003ch3\u003eAdditional Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4 built-in zones \u003c\/li\u003e\n\u003cli\u003eCascading up to 24 Units \u003c\/li\u003e\n\u003cli\u003eSmart Connect allows for WiFi remote access and Bluetooth with Rinnai central app \u003c\/li\u003e\n\u003cli\u003e7 Heating Reset Curves \u003c\/li\u003e\n\u003cli\u003eAdvanced controls with quick set-up screen \u003c\/li\u003e\n\u003cli\u003eImproved front panel display \u003c\/li\u003e\n\u003cli\u003eSimultaneous Space Htg and DHW \u003c\/li\u003e\n\u003cli\u003eCommon venting up to 8 Units \u003c\/li\u003e\n\u003cli\u003eSmart Sense gas adaptive technology \u003c\/li\u003e\n\u003cli\u003eOutdoor reset control system with sensor priority\/proportional DHW standard \u003c\/li\u003e\n\u003cli\u003eBuilt-in DHW plate heat exchanger \u003c\/li\u003e\n\u003cli\u003eModulating wire mesh burner \u003c\/li\u003e\n\u003cli\u003eStainless steel water tube condensing heat exchanger \u003c\/li\u003e\n\u003cli\u003eDirect vent sealed combustion \u003c\/li\u003e\n\u003cli\u003eHigh Altitude Approved up to 10,100 feet \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWant to learn more about this boiler? Read more about it in our article on \u003ca href=\"https:\/\/plumbing-deals.com\/blogs\/plumbing-blog\/the-best-steam-boilers-of-2025-a-comprehensive-guide\"\u003ethe best steam boilers\u003c\/a\u003e.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e","brand":"Rinnai","offers":[{"title":"Default Title","offer_id":43932155478067,"sku":"RINIP120199C","price":3037.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/nhkkljzo4doux4itzfqa_ca22a0eb-1a7c-4c95-89dc-49d9ddaa2681.png?v=1784049401"},{"product_id":"rinnai-i-series-plus-120-000-btu-natural-gas-or-liquid-propane-condensing-solo-gas-boiler-ip120s","title":"Rinnai I Series Plus 120,000 BTU Natural Gas or Liquid Propane Condensing Solo Gas Boiler - IP120S","description":"\u003cbr\u003e\u003cbr\u003eI-SERIES Plus line of Solo Condensing Gas Boilers offers unmatched value and performance with an expanded product line that features Smart Sense Adaptive Gas Valve technology. Solo Boiler CH 120k, NG\u003cbr\u003e\u003cbr\u003e\u003ch5\u003eFeatures and Benefits\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eSmart Sense Gas Adaptive Technology\u003c\/li\u003e\n\u003cli\u003eSmart Connect - WIFI Remote Access and Bluetooth with Rinnai Central App\u003c\/li\u003e\n\u003cli\u003e7 Heating Reset Curves\u003c\/li\u003e\n\u003cli\u003eHigh Altitude Approved up to 10,100 ft.\u003c\/li\u003e\n\u003cli\u003eAdvanced Controls with Quick Set-Up Screen\u003c\/li\u003e\n\u003cli\u003eImproved Front Panel Display\u003c\/li\u003e\n\u003cli\u003e4 Built-in Zones\u003c\/li\u003e\n\u003cli\u003eSpace Heating\u003c\/li\u003e\n\u003cli\u003eCommon Venting up to 8 Units\u003c\/li\u003e\n\u003cli\u003eSmart Sense Gas Adaptive Technology\u003c\/li\u003e\n\u003cli\u003eCall 833-805-0435 for factory direct installation assistance in your area\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eProduct Specifications\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eMAX  BTU        Capacity: 120000\u003c\/li\u003e\n\u003cli\u003eFuel Type: Natural Gas or Liquid Propane\u003c\/li\u003e\n\u003cli\u003eVoltage: AC 120 Volts, 60 Hz\u003c\/li\u003e\n\u003cli\u003eIgnition Type: Direct Electronic Ignition\u003c\/li\u003e\n\u003cli\u003eVenting Type: Concentric, Twin Pipe, Room Air\u003c\/li\u003e\n\u003cli\u003eStorage Capacity: 0.88 Gallons \/ (3.3 L)\u003c\/li\u003e\n\u003cli\u003eGas Connection: 3\/4\" MNPT\u003c\/li\u003e\n\u003cli\u003eCondensate Connection: 1\/2\" NPT\u003c\/li\u003e\n\u003cli\u003eRecirculation Capable: No\u003c\/li\u003e\n\u003cli\u003eWifi Capable: Yes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rinnai","offers":[{"title":"Default Title","offer_id":43932155740211,"sku":"RINIP120S","price":2271.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/nhkkljzo4doux4itzfqa_f51360d0-962b-46e0-b1f6-a1809bcfa561.png?v=1784049390"},{"product_id":"rinnai-i-series-plus-c-9-8-gpm-150-000-btu-central-heating-and-199-000-btu-hot-water-natural-gas-or-liquid-propane-condensing-combination-boiler-ip150199c","title":"Rinnai I Series Plus C 9.8 GPM 150,000 BTU Central Heating and 199,000 BTU Hot Water Natural Gas or Liquid Propane Condensing Combination Boiler - IP150199C","description":"\u003ch2\u003ePower Rinnai IP150199C 9.8 GPM \/ 150k–199k BTU Condensing Combi Boiler (NG\/LP)\u003c\/h2\u003e\n\n\u003cp\u003e\n  Replace separate boiler and water heater with one compact, efficient unit. The Rinnai\n  \u003cstrong\u003eIP150199C\u003c\/strong\u003e I-Series Plus Combi delivers whole-home central heat (up to \u003cstrong\u003e150,000 BTU\/h\u003c\/strong\u003e,\n  ?\u003cstrong\u003e43.9 kW\u003c\/strong\u003e) and continuous domestic hot water (up to \u003cstrong\u003e199,000 BTU\/h\u003c\/strong\u003e, ?\u003cstrong\u003e58.3 kW\u003c\/strong\u003e).\n  A factory-installed pump, outdoor reset sensor, and DHW priority\/proportional control\n  come standard for faster installs and steady comfort. With \u003cstrong\u003eup to 96% AFUE\u003c\/strong\u003e and a\n  \u003cstrong\u003e9.8 GPM\u003c\/strong\u003e DHW rating (max), this wall-hung boiler is built to cut fuel use and recover quickly\n  for busy households—all in a slim, direct-vent package.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Rinnai\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e IP150199C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Condensing combination gas boiler (central heating + domestic hot water)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize\/Capacity:\u003c\/strong\u003e CH \u003cstrong\u003e150,000 BTU\/h\u003c\/strong\u003e (?43.9 kW) • DHW \u003cstrong\u003e199,000 BTU\/h\u003c\/strong\u003e (?58.3 kW); DHW up to \u003cstrong\u003e9.8 GPM\u003c\/strong\u003e (temperature-rise dependent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\/Finish:\u003c\/strong\u003e Stainless-steel water-tube condensing heat exchanger; built-in DHW plate heat exchanger; modulating wire-mesh burner\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e Up to \u003cstrong\u003e96% AFUE\u003c\/strong\u003e; DHW \u003cstrong\u003e5.1 GPM @ 70°F\u003c\/strong\u003e rise (max \u003cstrong\u003e9.8 GPM\u003c\/strong\u003e at low rise); DHW activation \u003cstrong\u003e0.4 GPM\u003c\/strong\u003e (min flow \u003cstrong\u003e0.26 GPM\u003c\/strong\u003e); sound ~\u003cstrong\u003e47 dB(A)\u003c\/strong\u003e DHW \/ \u003cstrong\u003e43 dB(A)\u003c\/strong\u003e CH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnections\/Fit:\u003c\/strong\u003e Direct-vent (2? or 3? PVC\/CPVC\/PP twin-pipe or 3?×5? concentric); room-air option; NPT water\/gas connections (see manual); 120 V, 60 Hz, max 14 A (with external pumps\/thermostats)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Approx. \u003cstrong\u003e26.4? H × 18.5? W × 11.45? D\u003c\/strong\u003e (wall-hung)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Factory-installed CH pump; \u003cstrong\u003e30 PSI\u003c\/strong\u003e CH pressure relief valve; outdoor temperature sensor; vent top with integrated 2? PVC or 3?×5? concentric adapter; wall mounting bracket; manuals\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e; ANSI \u003cstrong\u003eZ21.13\u003c\/strong\u003e \/ CSA \u003cstrong\u003e4.9\u003c\/strong\u003e; \u003cstrong\u003eASME\u003c\/strong\u003e; SCAQMD \u003cstrong\u003eUltra Low NOx\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Residential—Heat exchanger \u003cstrong\u003e12 years\u003c\/strong\u003e; parts \u003cstrong\u003e5 years\u003c\/strong\u003e; labor \u003cstrong\u003e1 year\u003c\/strong\u003e (see Rinnai terms)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eSave Fuel With Condensing Efficiency\u003c\/h4\u003e\n\u003cp\u003e\n  A stainless-steel condensing heat exchanger, outdoor reset, and fully modulating burner\n  (15,000–199,000 BTU\/h DHW; up to 150,000 BTU\/h CH) help the I-Series Plus reach\n  \u003cstrong\u003eup to 96% AFUE\u003c\/strong\u003e. You get steady heat with lower gas consumption compared to\n  non-condensing systems—without sacrificing hot-water output.\u003c\/p\u003e\n\n\u003ch4\u003eEveryday Hot Water You Can Feel\u003c\/h4\u003e\n\u003cp\u003e\n  The integrated DHW plate heat exchanger delivers real-world flow: about \u003cstrong\u003e5.1 GPM at a\n  70°F rise\u003c\/strong\u003e (max \u003cstrong\u003e9.8 GPM\u003c\/strong\u003e at low rises). Minimum activation is just \u003cstrong\u003e0.4 GPM\u003c\/strong\u003e, so taps and\n  showers respond quickly, while DHW priority\/proportional control keeps temperatures\n  consistent during peak use.\u003c\/p\u003e\n\n\u003ch4\u003eDurable Materials, Easier Care\u003c\/h4\u003e\n\u003cp\u003e\n  Stainless-steel water-tube construction resists corrosion, and front access simplifies\n  annual maintenance. A quiet design (?\u003cstrong\u003e43–47 dB(A)\u003c\/strong\u003e) keeps living spaces comfortable,\n  and built-in safeties cover flame failure, overheat, and more.\u003c\/p\u003e\n\n\u003ch4\u003eInstaller-Friendly From The Box\u003c\/h4\u003e\n\u003cp\u003e\n  A \u003cstrong\u003efactory-installed pump\u003c\/strong\u003e, \u003cstrong\u003e30 PSI\u003c\/strong\u003e CH relief valve, outdoor sensor, and vent adapter\n  reduce parts runs. Electrical is 120 V with a 14-amp max (including external pumps \/\n  thermostats), and the unit provides NPT connection points for straightforward piping.\u003c\/p\u003e\n\n\u003ch4\u003eFlexible Venting = Easier Layouts\u003c\/h4\u003e\n\u003cp\u003e\n  Direct-vent with \u003cstrong\u003e2?\u003c\/strong\u003e or \u003cstrong\u003e3?\u003c\/strong\u003e PVC\/CPVC\/PP (twin pipe up to \u003cstrong\u003e75 ft\u003c\/strong\u003e in 2? or \u003cstrong\u003e160 ft\u003c\/strong\u003e in 3?, layout-dependent),\n  or use a \u003cstrong\u003e3?×5? concentric\u003c\/strong\u003e kit. Ubbink 2? PP flex vent is also supported (up to \u003cstrong\u003e50 ft\u003c\/strong\u003e).\n  See the installation manual for approved materials, lengths, and terminations.\u003c\/p\u003e\n\n\u003ch4\u003eSized Right For Mechanical Walls\u003c\/h4\u003e\n\u003cp\u003e\n  The compact \u003cstrong\u003e26.4? × 18.5? × 11.45?\u003c\/strong\u003e cabinet frees floor space compared to tank\n  systems. Plan condensate routing and clearances per the spec sheet before mounting.\u003c\/p\u003e\n\n\u003ch4\u003eSmart Controls \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp\u003e\n  I-Series Plus adds Smart Sense adaptive gas-valve technology and is Wi-Fi capable with\n  accessories. Outdoor reset and DHW priority are standard, and the boiler is approved for\n  room-air installations where allowed by code.\u003c\/p\u003e","brand":"Rinnai","offers":[{"title":"Default Title","offer_id":43932155904051,"sku":"RINIP150199C","price":3390.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/nhkkljzo4doux4itzfqa_0e30ffa7-3250-4d84-9ce2-78a442395dc7.png?v=1784049411"},{"product_id":"viessmann-low-loss-header-temperature-sensors-for-wb2a-single-boiler-applications-7134240","title":"Viessmann Low Loss Header Temperature Sensors for WB2A Single Boiler Applications - 7134240","description":"Temperature sensor for use in combination with Veissmann Low Loss Headers on Vitodens 200 Model boilers.\u003cbr\u003e\u003cbr\u003eWhen used in conjunction with the Vitodens 200, boilers, the low-loss header acts as a hydraulic break, decoupling boiler and system circuits from each other.\u003cbr\u003e\u003cbr\u003eIt is recommended to use the low-loss header in applications in which the total system flow rate exceeds the maximum boiler flow rate. \u003cbr\u003e\u003cbr\u003eViessmann strongly recommends the use of a low-loss header in cases where the system head and flow rates are unknown.\u003cbr\u003e\u003cbr\u003eThe temperature sensor connection located at the top of the low-loss header ensures low return temperatures to the Vitodens 200, boilers, at all times, increasing operational efficiency.\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\u003cli\u003eNo temperature sensor is used on the Vitodens 100 boiler. Temperature sensor for the Vitodens 200\u003c\/li\u003e\u003c\/ul\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":43932155805747,"sku":"VIES7134240","price":289.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/31zljJJYayL.jpg?v=1784049570"},{"product_id":"rinnai-i-series-plus-c-9-8-gpm-199-000-btu-central-heating-and-199-000-btu-hot-water-natural-gas-or-liquid-propane-condensing-combination-boiler-ip199199c","title":"Rinnai I Series Plus C 9.8 GPM 199,000 BTU Central Heating and 199,000 BTU Hot Water Natural Gas or Liquid Propane Condensing Combination Boiler - IP199199C","description":"\u003cbr\u003e\u003cbr\u003eI-SERIES Plus line of Combi Condensing Gas Boilers offers unmatched value and performance with an expanded product. Combi Boiler CH 199k \/ DHW 199k, NG\u003cbr\u003e\u003cbr\u003e\u003ch5\u003eFeatures and Benefits\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eCascading up to 24 Units\u003c\/li\u003e\n\u003cli\u003eSmart Connect - WIFI Remote Access and Bluetooth with Rinnai Central App\u003c\/li\u003e\n\u003cli\u003e7 Heating Reset Curves\u003c\/li\u003e\n\u003cli\u003eHigh Altitude Approved up to 10,100 ft.\u003c\/li\u003e\n\u003cli\u003eAdvanced Controls with Quick Set-Up Screen\u003c\/li\u003e\n\u003cli\u003eImproved Front Panel Display\u003c\/li\u003e\n\u003cli\u003e4 Built-in Zones\u003c\/li\u003e\n\u003cli\u003eSimultaneous Space Htg and DHW\u003c\/li\u003e\n\u003cli\u003eCommon Venting up to 8 Units\u003c\/li\u003e\n\u003cli\u003eNew and Improved Heat Exchanger\u003c\/li\u003e\n\u003cli\u003eCall 833-805-0435 for factory direct installation assistance in your area\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eProduct Specifications\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eMAX  BTU        Capacity: 199,000\u003c\/li\u003e\n\u003cli\u003eFuel Type: Natural Gas or Liquid Propane\u003c\/li\u003e\n\u003cli\u003eVoltage: AC 120 Volts, 60 Hz\u003c\/li\u003e\n\u003cli\u003eIgnition Type: Direct Electronic Ignition\u003c\/li\u003e\n\u003cli\u003eVenting Type: Concentric, Twin Pipe, Room Air\u003c\/li\u003e\n\u003cli\u003eFlow Rate (GPM): 0.26 to 9.8\u003c\/li\u003e\n\u003cli\u003eTemperature Range: 98-140\u003c\/li\u003e\n\u003cli\u003eStorage Capacity: 2.4 Gallons \/ (9.08 L)\u003c\/li\u003e\n\u003cli\u003eGas Connection: 3\/4\" MNPT\u003c\/li\u003e\n\u003cli\u003eWater Connection: 3\/4\" MNPT\u003c\/li\u003e\n\u003cli\u003eCondensate Connection: 1\/2\" NPT\u003c\/li\u003e\n\u003cli\u003eRecirculation Capable: Yes\u003c\/li\u003e\n\u003cli\u003eWifi Capable: Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cp\u003eWant to learn more about this high efficiency boiler? Check out our article on all things \u003ca href=\"https:\/\/plumbing-deals.com\/blogs\/plumbing-blog\/the-complete-guide-to-high-efficiency-boilers\"\u003ehigh efficiency boilers\u003c\/a\u003e.\u003c\/p\u003e","brand":"Rinnai","offers":[{"title":"Default Title","offer_id":43932155871283,"sku":"RINIP199199C","price":3500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/ip175199c-1_08d625a9-022b-484e-960c-c62377042a7d.png?v=1784049441"},{"product_id":"rinnai-i-series-primary-secondary-heating-kit-for-i060s-i90s-i120s-and-i150s-boilers-807000213","title":"Rinnai I Series Primary-Secondary Heating Kit for i060S, i90S, i120S, and i150S Boilers - 807000213","description":"\u003cul\u003e\n\u003cli\u003eFactory-built for quick field installation\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for Rinnai I-Series Boilers\u003c\/li\u003e\n\u003cli\u003eOffered as a boiler accessory for hydraulic separation\u003c\/li\u003e\n\u003cli\u003eA closely spaced tee is a hydraulic separator that separates the boiler loop from the central heating loop\u003c\/li\u003e\n\u003cli\u003eHydraulic separators allow for no pump curve matching or flow calculation and is ideal for multitemperature and multi-zone systems\u003c\/li\u003e\n\u003cli\u003eSmall footprint for easy installation\u003c\/li\u003e\n\u003cli\u003eCompact and lightweight (7.0 lb \/ 3.2 kg)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rinnai","offers":[{"title":"Default Title","offer_id":43932156100659,"sku":"RIN807000213","price":467.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/807000213-3.jpg?v=1784049643"},{"product_id":"viessmann-low-loss-header-temperature-sensors-for-wb2b-single-boiler-applications-7179488","title":"Viessmann Low Loss Header Temperature Sensors for WB2B Single Boiler Applications - 7179488","description":"Temperature sensor for use in combination with Veissmann Low Loss Headers on Vitodens 200 Model boilers.\u003cbr\u003e\u003cbr\u003eWhen used in conjunction with the Vitodens 200, boilers, the low-loss header acts as a hydraulic break, decoupling boiler and system circuits from each other.\u003cbr\u003e\u003cbr\u003eIt is recommended to use the low-loss header in applications in which the total system flow rate exceeds the maximum boiler flow rate. \u003cbr\u003e\u003cbr\u003eViessmann strongly recommends the use of a low-loss header in cases where the system head and flow rates are unknown.\u003cbr\u003e\u003cbr\u003eThe temperature sensor connection located at the top of the low-loss header ensures low return temperatures to the Vitodens 200, boilers, at all times, increasing operational efficiency.\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\u003cli\u003eNo temperature sensor is used on the Vitodens 100 boiler. Temperature sensor for the Vitodens 200\u003c\/li\u003e\u003c\/ul\u003e","brand":"VIESSMANN","offers":[{"title":"Default Title","offer_id":43932156297267,"sku":"VIES7179488","price":216.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/31aJNAjjDJL.jpg?v=1784049577"},{"product_id":"rinnai-i-series-plus-199-000-btu-natural-gas-or-liquid-propane-condensing-solo-gas-boiler-ip199s","title":"Rinnai I Series Plus 199,000 BTU Natural Gas or Liquid Propane Condensing Solo Gas Boiler - IP199S","description":"\u003cbr\u003e\u003cbr\u003eI-SERIES Plus line of Solo Condensing Gas Boilers offers unmatched value and performance with an expanded product line. Solo Boiler CH 199k, NG\u003cbr\u003e\u003cbr\u003e\u003ch5\u003eFeatures and Benefits\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eCascading up to 24 Units\u003c\/li\u003e\n\u003cli\u003eSmart Connect - WIFI Remote Access and Bluetooth with Rinnai Central App\u003c\/li\u003e\n\u003cli\u003e7 Heating Reset Curves\u003c\/li\u003e\n\u003cli\u003eHigh Altitude Approved up to 10,100 ft.\u003c\/li\u003e\n\u003cli\u003eAdvanced Controls with Quick Set-Up Screen\u003c\/li\u003e\n\u003cli\u003eImproved Front Panel Display\u003c\/li\u003e\n\u003cli\u003e4 Built-in Zones\u003c\/li\u003e\n\u003cli\u003eSpace Heating\u003c\/li\u003e\n\u003cli\u003eCommon Venting up to 8 Units\u003c\/li\u003e\n\u003cli\u003eNew and Improved Heat Exchanger\u003c\/li\u003e\n\u003cli\u003eCall 833-805-0435 for factory direct installation assistance in your area\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eProduct Specifications\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eMAX  BTU        Capacity: 199,000\u003c\/li\u003e\n\u003cli\u003eFuel Type: Natural Gas or Liquid Propane\u003c\/li\u003e\n\u003cli\u003eVoltage: AC 120 Volts, 60 Hz\u003c\/li\u003e\n\u003cli\u003eIgnition Type: Direct Electronic Ignition\u003c\/li\u003e\n\u003cli\u003eVenting Type: Concentric, Twin Pipe, Room Air\u003c\/li\u003e\n\u003cli\u003eStorage Capacity: 2.4 Gallons \/ (9.08 L)\u003c\/li\u003e\n\u003cli\u003eGas Connection: 3\/4\" MNPT\u003c\/li\u003e\n\u003cli\u003eWater Connection: 3\/4\" MNPT\u003c\/li\u003e\n\u003cli\u003eCondensate Connection: 1\/2\" NPT\u003c\/li\u003e\n\u003cli\u003eRecirculation Capable: No\u003c\/li\u003e\n\u003cli\u003eWifi Capable: Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003eWant to learn more about this hydronic boiler? Read our blog on factors to consider before purchasing a hydronic boiler, pros and cons of hydronic boilers, \u003ca href=\"https:\/\/plumbing-deals.com\/plumbing-blog\/pumps-water-heaters-and-boilers-hydronic-boilers\/\"\u003eand hydronic boiler recommendations.\u003c\/a\u003e\u003c\/p\u003e\u003cbr\u003e","brand":"Rinnai","offers":[{"title":"Default Title","offer_id":43932156330035,"sku":"RINIP199S","price":2922.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/ip175199c-1_1f648efa-32ea-4365-948c-504ec799c189.png?v=1784049371"},{"product_id":"rinnai-i-series-plus-150-000-btu-natural-gas-or-liquid-propane-condensing-solo-gas-boiler-ip150s","title":"Rinnai I Series Plus 150,000 BTU Natural Gas or Liquid Propane Condensing Solo Gas Boiler - IP150S","description":"\u003cbr\u003e\u003cbr\u003eI-SERIES Plus line of Solo Condensing Gas Boilers offers unmatched value and performance with an expanded product line that features Smart Sense Adaptive Gas Valve technology. Solo Boiler CH 150k, NG\u003cbr\u003e\u003cbr\u003e\u003ch5\u003eFeatures and Benefits\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eSmart Sense Gas Adaptive Technology\u003c\/li\u003e\n\u003cli\u003eSmart Connect - WIFI Remote Access and Bluetooth with Rinnai Central App\u003c\/li\u003e\n\u003cli\u003e7 Heating Reset Curves\u003c\/li\u003e\n\u003cli\u003eHigh Altitude Approved up to 10,100 ft.\u003c\/li\u003e\n\u003cli\u003eAdvanced Controls with Quick Set-Up Screen\u003c\/li\u003e\n\u003cli\u003eImproved Front Panel Display\u003c\/li\u003e\n\u003cli\u003e4 Built-in Zones\u003c\/li\u003e\n\u003cli\u003eSpace Heating\u003c\/li\u003e\n\u003cli\u003eCommon Venting up to 8 Units\u003c\/li\u003e\n\u003cli\u003eSmart Sense Gas Adaptive Technology\u003c\/li\u003e\n\u003cli\u003eCall 833-805-0435 for factory direct installation assistance in your area\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eProduct Specifications\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eMAX  BTU        Capacity: 150000\u003c\/li\u003e\n\u003cli\u003eFuel Type: Natural Gas or Liquid Propane\u003c\/li\u003e\n\u003cli\u003eVoltage: AC 120 Volts, 60 Hz\u003c\/li\u003e\n\u003cli\u003eIgnition Type: Direct Electronic Ignition\u003c\/li\u003e\n\u003cli\u003eVenting Type: Concentric, Twin Pipe, Room Air\u003c\/li\u003e\n\u003cli\u003eStorage Capacity: 0.88 Gallons \/ (3.3 L)\u003c\/li\u003e\n\u003cli\u003eGas Connection: 3\/4\" MNPT\u003c\/li\u003e\n\u003cli\u003eCondensate Connection: 1\/2\" NPT\u003c\/li\u003e\n\u003cli\u003eRecirculation Capable: No\u003c\/li\u003e\n\u003cli\u003eWifi Capable: Yes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rinnai","offers":[{"title":"Default Title","offer_id":43932156428339,"sku":"RINIP150S","price":2523.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/nhkkljzo4doux4itzfqa_34429f5b-178f-4a2c-8178-23bec5de2695.png?v=1784049426"},{"product_id":"viessmann-low-loss-header-1-1-4-type-80-60-19-5gpm-7498529","title":"Viessmann Low Loss Header 1-1\/4\" Type 80\/60 19.5GPM - 7498529","description":"When used in conjunction with the Vitodens 100, or Vitodens 200, boilers, the low-loss header acts as a hydraulic break, decoupling boiler and system circuits from each other.\u003cbr\u003e\u003cbr\u003eIt is recommended to use the low-loss header in applications in which the total system flow rate exceeds the maximum boiler flow rate. \u003cbr\u003e\u003cbr\u003eViessmann strongly recommends the use of a low-loss header in cases where the system head and flow rates are unknown.\u003cbr\u003e\u003cbr\u003eThe temperature sensor connection located at the top of the low-loss header ensures low return temperatures to the Vitodens 200, boilers, at all times, increasing operational efficiency.\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eThe low-loss header helps eliminate air and debris from the heating system\u003c\/li\u003e\n\u003cli\u003eIncludes sensor well, drain plug, air bleed plug, and insulation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VIESSMANN","offers":[{"title":"Default Title","offer_id":43932156362803,"sku":"VIES7498529","price":465.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/VeissmannLowLossHeader1_9cc48dc5-f7b4-428b-b986-d390c82652a3.jpg?v=1784294054"},{"product_id":"rinnai-i-series-plus-175-000-btu-natural-gas-or-liquid-propane-condensing-solo-gas-boiler-ip175s","title":"Rinnai I Series Plus 175,000 BTU Natural Gas or Liquid Propane Condensing Solo Gas Boiler - IP175S","description":"\u003cbr\u003e\u003cbr\u003eI-SERIES Plus line of Solo Condensing Gas Boilers offers unmatched value and performance with an expanded product line that features Smart Sense Adaptive Gas Valve technology. Solo Boiler CH 175k, NG\u003cbr\u003e\u003cbr\u003e\u003ch5\u003eFeatures and Benefits\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eCascading up to 24 Units\u003c\/li\u003e\n\u003cli\u003eSmart Connect - WIFI Remote Access and Bluetooth with Rinnai Central App\u003c\/li\u003e\n\u003cli\u003e7 Heating Reset Curves\u003c\/li\u003e\n\u003cli\u003eHigh Altitude Approved up to 10,100 ft.\u003c\/li\u003e\n\u003cli\u003eAdvanced Controls with Quick Set-Up Screen\u003c\/li\u003e\n\u003cli\u003eImproved Front Panel Display\u003c\/li\u003e\n\u003cli\u003e4 Built-in Zones\u003c\/li\u003e\n\u003cli\u003eSpace Heating\u003c\/li\u003e\n\u003cli\u003eCommon Venting up to 8 Units\u003c\/li\u003e\n\u003cli\u003eNew and Improved Heat Exchanger\u003c\/li\u003e\n\u003cli\u003eCall 833-805-0435 for factory direct installation assistance in your area\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eProduct Specifications\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eMAX  BTU        Capacity: 175,000\u003c\/li\u003e\n\u003cli\u003eFuel Type: Natural Gas or Liquid Propane\u003c\/li\u003e\n\u003cli\u003eVoltage: AC 120 Volts, 60 Hz\u003c\/li\u003e\n\u003cli\u003eIgnition Type: Direct Electronic Ignition\u003c\/li\u003e\n\u003cli\u003eVenting Type: Concentric, Twin Pipe, Room Air\u003c\/li\u003e\n\u003cli\u003eStorage Capacity: 2.4 Gallons \/ (9.08 L)\u003c\/li\u003e\n\u003cli\u003eGas Connection: 3\/4\" MNPT\u003c\/li\u003e\n\u003cli\u003eWater Connection: 3\/4\" MNPT\u003c\/li\u003e\n\u003cli\u003eCondensate Connection: 1\/2\" NPT\u003c\/li\u003e\n\u003cli\u003eRecirculation Capable: No\u003c\/li\u003e\n\u003cli\u003eWifi Capable: Yes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rinnai","offers":[{"title":"Default Title","offer_id":43932156690483,"sku":"RINIP175S","price":2686.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/ip175199c-1.png?v=1784049436"},{"product_id":"rinnai-rcb-series-301-000-btu-indoor-natural-gas-wall-mounted-commercial-condensing-solo-boiler-rcb301an","title":"Rinnai RCB Series 301,000 BTU Indoor Natural Gas Wall Mounted Commercial Condensing Solo Boiler - RCB301AN","description":"\u003ch2\u003ePower Rinnai RCB301AN 301,000 BTU Wall-Hung Commercial Condensing Solo Boiler\u003c\/h2\u003e\n\n\u003cp\u003e\n  Right-size building heat with a compact, high-efficiency package. The Rinnai\n  \u003cstrong\u003eRCB301AN\u003c\/strong\u003e delivers \u003cstrong\u003e97% thermal efficiency\u003c\/strong\u003e and a wide \u003cstrong\u003e10:1 turndown\u003c\/strong\u003e\n  (30,100–301,000 BTU\/h) to match real-time load and trim fuel use. A 316L stainless-steel\n  water-tube heat exchanger resists corrosion, while a 7? LCD touchscreen and built-in Wi-Fi\/BMS\n  make setup and monitoring straightforward. Flexible 4? direct-vent options (PVC\/CPVC\/PP)\n  and a light, wall-hung form factor simplify retrofit installs and service in tight mechanical rooms.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Rinnai\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e RCB301AN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Wall-hung commercial condensing heat-only (solo) boiler, indoor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize\/Capacity:\u003c\/strong\u003e \u003cstrong\u003e301,000 BTU\/h\u003c\/strong\u003e max input; \u003cstrong\u003e30,100 BTU\/h\u003c\/strong\u003e min; AHRI heating capacity \u003cstrong\u003e254,000 BTU\/h\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\/Finish:\u003c\/strong\u003e 316L stainless-steel water-tube heat exchanger; steel cabinet\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e \u003cstrong\u003e97% thermal efficiency\u003c\/strong\u003e; setpoint \u003cstrong\u003e86–180 °F\u003c\/strong\u003e (CH); sound level ~\u003cstrong\u003e55 dB(A)\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnections\/Fit:\u003c\/strong\u003e Gas \u003cstrong\u003e1? NPT\u003c\/strong\u003e; CH supply\/return \u003cstrong\u003e1-1\/4? NPT\u003c\/strong\u003e; condensate drain \u003cstrong\u003e1? NPT\u003c\/strong\u003e (3\/4? min pipe)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVenting:\u003c\/strong\u003e 4? PVC\/CPVC\/PP (and stainless) direct-vent, twin-pipe or concentric; room-air option; exhaust run \u003cstrong\u003e10–140 ft\u003c\/strong\u003e, intake \u003cstrong\u003e0–140 ft\u003c\/strong\u003e (equiv.); high-altitude derates vent length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Approx. \u003cstrong\u003e33.1? H × 19.4? W × 21.3? D\u003c\/strong\u003e; weight \u003cstrong\u003e170 lb\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Wall-mount bracket \u0026amp; screws; \u003cstrong\u003e75 PSI\u003c\/strong\u003e pressure-relief valve; outdoor temperature sensor; manuals\/warranty card\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e ANSI \u003cstrong\u003eZ21.13\u003c\/strong\u003e \/ CSA \u003cstrong\u003e4.9\u003c\/strong\u003e; \u003cstrong\u003eASME\u003c\/strong\u003e; Low-NOx; Wi-Fi capable; BMS 0–10V \u0026amp; Modbus (BACnet\/LonWorks adapters optional)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Heat exchanger \u003cstrong\u003e10 years (non-prorated)\u003c\/strong\u003e; parts \u003cstrong\u003e1 year\u003c\/strong\u003e; labor \u003cstrong\u003e1 year\u003c\/strong\u003e (commercial)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eSave Energy \u0026amp; Lower Operating Costs\u003c\/h4\u003e\n\u003cp\u003e\n  A condensing design and \u003cstrong\u003e10:1 turndown\u003c\/strong\u003e let the RCB301AN modulate precisely to demand,\n  delivering up to \u003cstrong\u003e97% thermal efficiency\u003c\/strong\u003e for reduced gas use versus non-condensing units.\n  Outdoor reset is standard to optimize water temperature and comfort as conditions change.\n\u003c\/p\u003e\n\n\u003ch4\u003eEveryday Heat You Can Count On\u003c\/h4\u003e\n\u003cp\u003e\n  With an AHRI certified heating capacity of about \u003cstrong\u003e254,000 BTU\/h\u003c\/strong\u003e and quiet operation\n  (~\u003cstrong\u003e55 dB(A)\u003c\/strong\u003e), the boiler supports steady output for schools, restaurants, and light\n  commercial buildings without oversizing multiple tanks or floor space.\n\u003c\/p\u003e\n\n\u003ch4\u003eDurable Materials, Easier Care\u003c\/h4\u003e\n\u003cp\u003e\n  The \u003cstrong\u003e316L stainless-steel\u003c\/strong\u003e water-tube heat exchanger resists corrosion for long service life.\n  Removable panels provide \u003cstrong\u003e270°\u003c\/strong\u003e access to internals for faster maintenance. Safety features\n  include flame monitoring, high-limit protections, blocked-vent switch, and freeze protection.\n\u003c\/p\u003e\n\n\u003ch4\u003eInstaller-Friendly Venting \u0026amp; Piping\u003c\/h4\u003e\n\u003cp\u003e\n  Vent with \u003cstrong\u003e4?\u003c\/strong\u003e PVC\/CPVC\/PP (or stainless) in twin-pipe or concentric layouts—exhaust runs\n  from \u003cstrong\u003e10 to 140 ft\u003c\/strong\u003e and intake up to \u003cstrong\u003e140 ft\u003c\/strong\u003e equivalent. Piping is straightforward:\n  \u003cstrong\u003e1? gas\u003c\/strong\u003e, \u003cstrong\u003e1-1\/4?\u003c\/strong\u003e CH supply\/return, and \u003cstrong\u003e1?\u003c\/strong\u003e condensate drain (3\/4? min pipe). Units ship NG;\n  LP conversion kits are available.\n\u003c\/p\u003e\n\n\u003ch4\u003eSized Right For Mechanical Rooms\u003c\/h4\u003e\n\u003cp\u003e\n  The compact \u003cstrong\u003e33.1? × 19.4? × 21.3?\u003c\/strong\u003e cabinet weighs only \u003cstrong\u003e170 lb\u003c\/strong\u003e, fits through standard\n  doorways, and mounts with the included bracket—ideal for retrofits and tight spaces.\n\u003c\/p\u003e\n\n\u003ch4\u003eSmart Controls \u0026amp; Building Integration\u003c\/h4\u003e\n\u003cp\u003e\n  A \u003cstrong\u003e7? LCD touchscreen\u003c\/strong\u003e speeds commissioning. Standard Wi-Fi enables remote monitoring,\n  while built-in \u003cstrong\u003e0–10V BMS\u003c\/strong\u003e input and \u003cstrong\u003eModbus\u003c\/strong\u003e streamline integration (optional BACnet\/LonWorks\n  adapters). Integrated pump relays (boiler, system, indirect) reduce add-ons; note that the\n  \u003cem\u003ecirculators themselves are not included\u003c\/em\u003e.\n\u003c\/p\u003e\n\n\u003ch4\u003eScalable Systems, Common Venting\u003c\/h4\u003e\n\u003cp\u003e\n  Cascade up to \u003cstrong\u003e8\u003c\/strong\u003e boilers with equal runtime logic to meet higher loads, and common-vent\n  up to \u003cstrong\u003e4\u003c\/strong\u003e wall-hung units on properly sized PVC\/PP where code allows. Follow the manual for\n  vent sizing, elbow equivalencies, and altitude adjustments.\n\u003c\/p\u003e\n\n\u003cp\u003e Want to learn more about this boiler? Read more about it in our article on \u003ca href=\"https:\/\/plumbing-deals.com\/blogs\/plumbing-blog\/the-best-steam-boilers-of-2025-a-comprehensive-guide\"\u003ethe best steam boilers.\u003c\/a\u003e\u003c\/p\u003e","brand":"Rinnai","offers":[{"title":"Default Title","offer_id":43932156657715,"sku":"RINRCB301AN","price":10345.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/mikstflbyznyub4imgpm.png?v=1784049383"},{"product_id":"viessmann-low-loss-header-2-type-120-80-35-2gpm-7498530","title":"Viessmann Low Loss Header 2\" Type 120\/80 35.2GPM - 7498530","description":"When used in conjunction with the Vitodens 100, or Vitodens 200, boilers, the low-loss header acts as a hydraulic break, decoupling boiler and system circuits from each other.\u003cbr\u003e\u003cbr\u003eIt is recommended to use the low-loss header in applications in which the total system flow rate exceeds the maximum boiler flow rate. \u003cbr\u003e\u003cbr\u003eViessmann strongly recommends the use of a low-loss header in cases where the system head and flow rates are unknown.\u003cbr\u003e\u003cbr\u003eThe temperature sensor connection located at the top of the low-loss header ensures low return temperatures to the Vitodens 200, boilers, at all times, increasing operational efficiency.\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eThe low-loss header helps eliminate air and debris from the heating system\u003c\/li\u003e\n\u003cli\u003eIncludes sensor well, drain plug, air bleed plug, and insulation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":43932156821555,"sku":"VIES7498530","price":614.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/VeissmannLowLossHeader1_59bc1bda-3611-4db2-ac5b-3de63abd1236.jpg?v=1784294060"},{"product_id":"rinnai-rcb-series-399-000-btu-indoor-natural-gas-wall-mounted-commercial-condensing-solo-boiler-rcb399an","title":"Rinnai RCB Series 399,000 BTU Indoor Natural Gas Wall Mounted Commercial Condensing Solo Boiler - RCB399AN","description":"\u003cul\u003e\n\u003cli\u003e97% Thermal Efficiency\u003c\/li\u003e\n\u003cli\u003e10:1 Turndown ratio\u003c\/li\u003e\n\u003cli\u003eStainless Steel Heat Exchanger (ASME H Stamp)\u003c\/li\u003e\n\u003cli\u003eUltra Low NOx\u003c\/li\u003e\n\u003cli\u003eASME H Stamp\u003c\/li\u003e\n\u003cli\u003eCascade up to 8 Units\u003c\/li\u003e\n\u003cli\u003eCommon Vent up to 4 Units\u003c\/li\u003e\n\u003cli\u003e7'' LCD Touch Screen\u003c\/li\u003e\n\u003cli\u003eWifi and BMS compatible\u003c\/li\u003e\n\u003cli\u003eMAX  BTU        Capacity: 399,000 BU \/ (117 kW)\u003c\/li\u003e\n\u003cli\u003eFuel Type: Natural Gas\u003c\/li\u003e\n\u003cli\u003eVoltage: AC 120 Volts, 60 Hz\u003c\/li\u003e\n\u003cli\u003eIgnition Type: Direct Electronic Ignition\u003c\/li\u003e\n\u003cli\u003eVenting Type: Twin Pipe\u003c\/li\u003e\n\u003cli\u003eEnergy Efficiency: 97.0%\u003c\/li\u003e\n\u003cli\u003eGas Connection: 1\" MNPT\u003c\/li\u003e\n\u003cli\u003eWater Connection: 1-1\/4\" MNPT\u003c\/li\u003e\n\u003cli\u003eCondensate Connection: 1\" MNPT\u003c\/li\u003e\n\u003cli\u003eRecirculation Capable: No\u003c\/li\u003e\n\u003cli\u003eWifi Capable: Yes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rinnai","offers":[{"title":"Default Title","offer_id":43932156854323,"sku":"RINRCB399AN","price":12585.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/mikstflbyznyub4imgpm_a026eb6c-3c51-4d5e-951d-123b72e6535b.png?v=1784049395"},{"product_id":"rinnai-rx-series-9-0-gpm-160-000-btu-indoor-outdoor-condensing-tankless-water-heater-rx160in","title":"Rinnai RX Series 9.0 GPM 160,000 BTU Indoor Outdoor Condensing Tankless Water Heater - RX160IN","description":"\u003cbr\u003eThe SENSEI RX160iN condensing tankless water heater from Rinnai is only the size of a small suitcase, uses either Natural Gas or Propane, and can be installed indoors or outdoors using the Versa-Vent accessory. Rinnai SENSEI RX Series tankless water heaters last up to twice as long as tanks and have twice the warranty length. Plus, they save energy by heating water only when it is needed.\u003cbr\u003e\u003cbr\u003e\u003ch5\u003eFeatures and Benefits\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eMax Temperature 140F\u003c\/li\u003e\n\u003cli\u003eSmart Sense Gas Valve Technology adjusts to either Natural Gas or Propane - no conversion kit required.\u003c\/li\u003e\n\u003cli\u003eVersa-Vent Cap for outdoor installations provides the ultimate in installation flexibility (sold separately).\u003c\/li\u003e\n\u003cli\u003eSmart Connect via Bluetooth to your device using your smartphone and the Rinnai Central App for Quick Setup and Registration\u003c\/li\u003e\n\u003cli\u003eSmart Circ Intelligent Recirculation capable with installation of pump or pump accessory\u003c\/li\u003e\n\u003cli\u003eQuick Flush - Simplified System Flushing\u003c\/li\u003e\n\u003cli\u003eIndustry leading 2\" venting up to 75 feet\u003c\/li\u003e\n\u003cli\u003eRecirculation: Field convertible with Internal Pump kit\u003c\/li\u003e\n\u003cli\u003eOur efficient and compact technology helps conserve natural resources, including water- while reducing waste in landfills\u003c\/li\u003e\n\u003cli\u003eSuper High Efficiency of 0.97 UEF, Meets Energy Star 5.0\u003c\/li\u003e\n\u003cli\u003eCall 833-805-0435 for factory direct installation assistance in your area\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eProduct Specifications\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eMAX  BTU        Capacity: 160,000\u003c\/li\u003e\n\u003cli\u003eFuel Type: Natural Gas or Liquid Propane\u003c\/li\u003e\n\u003cli\u003eVoltage: AC 120 Volts, 60 Hz\u003c\/li\u003e\n\u003cli\u003eIgnition Type: Direct Electronic Ignition\u003c\/li\u003e\n\u003cli\u003eVenting Type: Concentric, Twin Pipe, Room Air, Common Vent\u003c\/li\u003e\n\u003cli\u003eEnergy Efficiency: 97.0%\u003c\/li\u003e\n\u003cli\u003eFlow Rate (GPM): 0.13 to 9.0\u003c\/li\u003e\n\u003cli\u003eTemperature Range: 98-185\u003c\/li\u003e\n\u003cli\u003eGas Connection: 3\/4 in\u003c\/li\u003e\n\u003cli\u003eWater Connection: 3\/4 in\u003c\/li\u003e\n\u003cli\u003eCondensate Connection: 1\/2\" NPT\u003c\/li\u003e\n\u003cli\u003eRecirculation Capable: Yes\u003c\/li\u003e\n\u003cli\u003eWifi Capable: Yes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rinnai","offers":[{"title":"Default Title","offer_id":43932158361651,"sku":"RINRX160IN","price":1512.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/hbwsropihd4vl5kzf2ak_b42fa6c2-2251-4ff1-98b9-0f9b2e33e068.png?v=1784049530"},{"product_id":"rinnai-rx-series-10-0-gpm-180-000-btu-indoor-outdoor-condensing-tankless-water-heater-rx180in","title":"Rinnai RX Series 10.0 GPM 180,000 BTU Indoor Outdoor Condensing Tankless Water Heater - RX180IN","description":"\u003cbr\u003e\u003cbr\u003eThe SENSEI RX180iN condensing tankless water heater from Rinnai is only the size of a small suitcase, uses either Natural Gas or Propane, and can be installed indoors or outdoors using the Versa-Vent accessory. Rinnai SENSEI RX Series tankless water heaters last up to twice as long as tanks and have twice the warranty length. Plus, they save energy by heating water only when it is needed.\u003cbr\u003e\u003cbr\u003e\u003ch5\u003eFeatures and Benefits\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eMax Temperature 140F\u003c\/li\u003e\n\u003cli\u003eSmart Sense Gas Valve Technology adjusts to either Natural Gas or Propane - no conversion kit required.\u003c\/li\u003e\n\u003cli\u003eVersa-Vent Cap for outdoor installations provides the ultimate in installation flexibility (sold separately).\u003c\/li\u003e\n\u003cli\u003eSmart Connect via Bluetooth to your device using your smartphone and the Rinnai Central App for Quick Setup and Registration\u003c\/li\u003e\n\u003cli\u003eSmart Circ Intelligent Recirculation capable with installation of pump or pump accessory\u003c\/li\u003e\n\u003cli\u003eQuick Flush - Simplified System Flushing\u003c\/li\u003e\n\u003cli\u003eIndustry leading 2\" venting up to 75 feet\u003c\/li\u003e\n\u003cli\u003eRecirculation: Field convertible with Internal Pump kit\u003c\/li\u003e\n\u003cli\u003eOur efficient and compact technology helps conserve natural resources, including water- while reducing waste in landfills\u003c\/li\u003e\n\u003cli\u003eSuper High Efficiency of 0.98 UEF, Meets Energy Star 5.0\u003c\/li\u003e\n\u003cli\u003eCall 833-805-0435 for factory direct installation assistance in your area\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eProduct Specifications\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eMAX  BTU        Capacity: 180,000\u003c\/li\u003e\n\u003cli\u003eFuel Type: Natural Gas or Liquid Propane\u003c\/li\u003e\n\u003cli\u003eVoltage: AC 120 Volts, 60 Hz\u003c\/li\u003e\n\u003cli\u003eIgnition Type: Direct Electronic Ignition\u003c\/li\u003e\n\u003cli\u003eVenting Type: Concentric, Twin Pipe, Room Air, Common Vent\u003c\/li\u003e\n\u003cli\u003eEnergy Efficiency: 97.0%\u003c\/li\u003e\n\u003cli\u003eFlow Rate (GPM): 0.13 to 10.0\u003c\/li\u003e\n\u003cli\u003eTemperature Range: 98-120\u003c\/li\u003e\n\u003cli\u003eGas Connection: 3\/4 in\u003c\/li\u003e\n\u003cli\u003eWater Connection: 3\/4 in\u003c\/li\u003e\n\u003cli\u003eCondensate Connection: 1\/2\" NPT\u003c\/li\u003e\n\u003cli\u003eRecirculation Capable: Yes\u003c\/li\u003e\n\u003cli\u003eWifi Capable: Yes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rinnai","offers":[{"title":"Default Title","offer_id":43932158787635,"sku":"RINRX180IN","price":1409.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/hbwsropihd4vl5kzf2ak_291d51c4-d339-456f-8134-6c8bf4514d40.png?v=1784265452"},{"product_id":"rinnai-rx-series-11-1-gpm-199-000-btu-indoor-outdoor-condensing-tankless-water-heater-rx199in","title":"Rinnai RX Series 11.1 GPM 199,000 BTU Indoor Outdoor Condensing Tankless Water Heater - RX199IN","description":"\u003cbr\u003eThe SENSEI RX199iN condensing tankless water heater from Rinnai is only the size of a small suitcase, uses either Natural Gas or Propane, and can be installed indoors or outdoors using the Versa-Vent accessory. Rinnai SENSEI RX Series tankless water heaters last up to twice as long as tanks and have twice the warranty length. 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 Capacity: 175,000\u003c\/li\u003e\n\u003cli\u003eFuel Type: Natural Gas or Liquid Propane\u003c\/li\u003e\n\u003cli\u003eVoltage: AC 120 Volts, 60 Hz\u003c\/li\u003e\n\u003cli\u003eIgnition Type: Direct Electronic Ignition\u003c\/li\u003e\n\u003cli\u003eVenting Type: Concentric, Twin Pipe, Room Air\u003c\/li\u003e\n\u003cli\u003eFlow Rate (GPM): 0.26 to 9.8\u003c\/li\u003e\n\u003cli\u003eTemperature Range: 98-140\u003c\/li\u003e\n\u003cli\u003eStorage Capacity: 2.4 Gallons \/ (9.08 L)\u003c\/li\u003e\n\u003cli\u003eGas Connection: 3\/4\" MNPT\u003c\/li\u003e\n\u003cli\u003eWater Connection: 3\/4\" MNPT\u003c\/li\u003e\n\u003cli\u003eCondensate Connection: 1\/2\" NPT\u003c\/li\u003e\n\u003cli\u003eRecirculation Capable: Yes\u003c\/li\u003e\n\u003cli\u003eWifi Capable: Yes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rinnai","offers":[{"title":"Default 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Title","offer_id":43932162162739,"sku":"ZILZEP5ZILZAFL2234","price":204.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/zilzep5__1.png?v=1784049211"},{"product_id":"zilmet-zft8r-2-1-gal-flat-rectangular-hydronic-tank-with-1-2-npt-connection-union-two-way-check-valve-and-welded-bracket-zilmet-zaf012mf-1-2-mnpt-x-1-2-fnpt-activflo-solo","title":"Zilmet ZFT8R 2.1 gal flat rectangular hydronic tank with 1\/2\" NPT connection, union (two-way check valve), and welded bracket Zilmet ZAF012MF 1\/2'' MNPT X 1\/2'' FNPT Activflo Solo","description":"Compact residential expansion tank kit designed to protect water heaters from thermal pressure.","brand":"Zilmet","offers":[{"title":"Default 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Title","offer_id":43932163080243,"sku":"ZILZHT815ZILZAF012MF","price":203.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/Zilmet_ZHT1830_e4c53aa0-fc96-47fb-9674-48b138c7edc1.jpg?v=1784049285"},{"product_id":"viessmann-cu3a-94-vitocrossal-300-cu3a-94-000-btu-gas-condensing-boiler","title":"Viessmann CU3A-94 Vitocrossal 300 CU3A 94,000 BTU Gas Condensing Boiler","description":"\u003ch2\u003eUpgrade to the Viessmann CU3A-94 Vitocrossal 300 Gas Condensing Boiler\u003c\/h2\u003e\n\u003cp\u003eThe Viessmann CU3A-94 Vitocrossal 300 is a high-efficiency, floor-standing gas condensing boiler designed for residential and light commercial heating systems that demand consistent performance, low operating costs, and long-term reliability.\u003c\/p\u003e\n\u003cp\u003eBuilt around Viessmann’s proven Inox-Crossal stainless steel heat exchanger and MatriX dome gas burner technology, this boiler delivers exceptional fuel efficiency, quiet operation, and stable heating output for both retrofit and new construction applications.\u003c\/p\u003e\n\u003cp\u003eWith a maximum input of 94,000 BTU and 95% AFUE efficiency, the CU3A-94 is ideal for high-temperature systems such as cast iron radiators, baseboard heating loops, and multi-zone hydronic systems.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003ch4\u003eExceptional Efficiency with Intelligent Technology\u003c\/h4\u003e\n\u003cp\u003eAchieve up to 98% efficiency with the vertical stainless steel Inox-Crossal heat exchanger, designed for optimal heat transfer. Its smooth surface promotes a self-cleaning effect, pushing efficiency even further while reducing maintenance needs. Paired with the MatriX dome gas burner, the boiler ensures ultra-low emissions and high-performance combustion, even with fluctuating gas quality.\u003c\/p\u003e\n\u003ch4\u003eFlexible and Reliable for All Homes\u003c\/h4\u003e\n\u003cp\u003eWhether your home relies on high-mass cast iron radiators or modern high-temperature fin tube radiators, the Viessmann CU3A seamlessly integrates with all setups. Its high-output capacity and compact floor-standing design make it a versatile choice for virtually any heating demand, including multi-zone systems and significant hot water requirements.\u003c\/p\u003e\n\u003ch4\u003eQuiet Comfort and Durability\u003c\/h4\u003e\n\u003cp\u003eOperating quieter than most household refrigerators, the CU3A ensures absolute comfort without distracting noise. Its durable stainless steel construction and limited lifetime warranty on residential applications provide peace of mind, knowing your investment will stand the test of time.\u003c\/p\u003e\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-efficiency residential\/light commercial gas condensing boiler\u003c\/li\u003e\n\u003cli\u003eMaximum input: 94,000 BTU\u003c\/li\u003e\n\u003cli\u003eAFUE efficiency: up to 95%\u003c\/li\u003e\n\u003cli\u003eFloor-standing installation design\u003c\/li\u003e\n\u003cli\u003eStainless steel Inox-Crossal heat exchanger\u003c\/li\u003e\n\u003cli\u003eMatriX dome modulating burner system\u003c\/li\u003e\n\u003cli\u003e5:1 turndown ratio for efficient part-load operation\u003c\/li\u003e\n\u003cli\u003eSuitable for hydronic heating systems (radiators, baseboard, multi-zone systems)\u003c\/li\u003e\n\u003cli\u003eCompact footprint for retrofit mechanical rooms\u003c\/li\u003e\n\u003cli\u003eDesigned for consistent heating performance with reduced cycling\u003c\/li\u003e\n\u003cli\u003eHigh-altitude operation capability (up to approx. 10,000 ft)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/plumbing-deals.com\/collections\/viessmann\" title=\"Shop all Viessmann products on Plumbing Deals\"\u003eViessmann\u003c\/a\u003e is a global leader in high-efficiency heating systems, known for durable engineering, advanced condensing technology, and long-lasting hydronic boiler solutions designed for residential and commercial applications.\u003c\/p\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel: \u003c\/strong\u003eCU3A-94\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand: \u003c\/strong\u003eViessmann\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries: \u003c\/strong\u003eVitocrossal 300 CU3A\u003c\/li\u003e\n\u003cli\u003e\n\u003c!--[endif]--\u003e\u003cstrong\u003eWarranty: \u003c\/strong\u003eLimited lifetime warranty in residential applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eViessmann CU3A-94 FAQ\u003c\/h3\u003e\n\u003ch4\u003eWhat is the Viessmann CU3A-94 used for?\u003c\/h4\u003e\n\u003cp\u003eThe CU3A-94 is a high-efficiency condensing boiler used for residential and light commercial hydronic heating systems, including radiators, baseboards, and multi-zone heating setups.\u003c\/p\u003e\n\u003ch4\u003eIs the CU3A-94 good for replacing older cast iron boilers?\u003c\/h4\u003e\n\u003cp\u003eYes. The CU3A-94 is specifically designed for retrofit applications and performs well in high-temperature systems like cast iron radiators.\u003c\/p\u003e\n\u003ch4\u003eHow efficient is the Viessmann CU3A-94 boiler?\u003c\/h4\u003e\n\u003cp\u003eIt operates at up to 95% AFUE efficiency, depending on system configuration and operating conditions.\u003c\/p\u003e\n\u003ch4\u003eDoes the CU3A-94 require special piping?\u003c\/h4\u003e\n\u003cp\u003eIn many applications, its high water content design reduces or eliminates the need for complex primary\/secondary piping.\u003c\/p\u003e\n\u003ch4\u003eWhat makes this boiler a condensing model?\u003c\/h4\u003e\n\u003cp\u003eIt captures additional heat from flue gases using a stainless steel heat exchanger, increasing efficiency compared to non-condensing boilers.\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":43932323545139,"sku":"VIESCU3A94","price":5818.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/Vitocrossal-300-CU3A_Front_1280x1280_transparent_0b7868b2-9713-4cf9-befb-c70a213dfc9e.png?v=1784055425"},{"product_id":"pennco-silver-1605hsid-150-000-btu-cast-iron-natural-gas-boiler","title":"Pennco Silver 1605HSID 150,000 BTU Cast Iron Natural Gas Boiler","description":"With an efficiency of up to 82%, the 1605HSID Boiler features cast iron sections and push nipples. An integral draft diverter protects against harmful back drafts to ensure safe operation. Low water cut-off, pressure limit control and pop safety valve are also standard safety features. The 1605HSID Boiler incorporates a 6\" steam chest which allows the boiler to generate ample amounts of steam. The 2 1\/2\" supply tappings provide easy access for steam to enter the distribution system and heat your home quickly.\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptional Heat Exchanger Design: Features a dependable cast iron heat exchanger with cast iron push nipple connections. The sections and push nipples expand at the same rate when heated. By using similar materials instead of less expensive gaskets, the boiler maintains a water tight seal.\u003c\/li\u003e\n\u003cli\u003eCycleGard CG400 LWCO: CycleGard low water cut-off is equipped with an Intermittent Level Test. This important feature adds protection against false signals that can be caused by foam and volatile water conditions inside the boiler. The Intermittent Level Test removes power from the burner at preset intervals. During the test, foam dissipates and the water level stabilizes - allowing CycleGard to monitor the true water level in the boiler assuring safe and accurate operation.\u003c\/li\u003e\n\u003cli\u003eWarranty: 10 Year Limited Heat Exchanger\u003c\/li\u003e\n\u003cli\u003eWater Return\/Supply: (2) 2-1\/2\" NPT\u003c\/li\u003e\n\u003cli\u003eGas Inlet: 1\/2\" NPT\u003c\/li\u003e\n\u003cli\u003e120 Volts AC, 60 hertz, 1 phase, less than 12 amps (15 amp circuit recommended)\u003c\/li\u003e\n\u003cli\u003e150,000 BTU Input\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/penncoboilers.com\/sites\/default\/files\/240009892%20Pennco%2016%20Sell%20Sheet%2005-16-23%20WEB.pdf\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline; color: #0000ff;\"\u003eProduct Brochure\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/penncoboilers.com\/sites\/default\/files\/1305004%20REV%20P.pdf\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline; color: #0000ff;\"\u003eInstallation and Maintenance Manual\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/penncoboilers.com\/sites\/default\/files\/240013734%20PENNCO%2016%20PARTS%20REV%20A.pdf\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline; color: #0000ff;\"\u003eParts List\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/penncoboilers.com\/sites\/default\/files\/240013741%20REV%20A.pdf\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline; color: #0000ff;\"\u003eUser Manual\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/penncoboilers.com\/sites\/default\/files\/240013158_Pennco%20Consolidated%20Warranty%20-%20October%202020-B.pdf\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline; color: #0000ff;\"\u003eWarranty\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PENNCO BOILERS","offers":[{"title":"Default Title","offer_id":43932323840051,"sku":"PEN1605HSID","price":3367.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/pennco_2016_20series.png?v=1784055412"},{"product_id":"viessmann-7560569-boiler-stand-for-vitodens-100w-and-vitodens-200w-up-to-352-series-wall-boilers","title":"Viessmann 7560569 Boiler Stand for Vitodens 100W and Vitodens 200W (up to 352) Series Wall Boilers","description":"\u003ch2\u003eElevate Your Heating System: Viessmann 7560569 Boiler Stand for Vitodens Boilers\u003c\/h2\u003e\n\u003cp\u003eThe Viessmann 7560569 Boiler Stand provides a safe, secure, and efficient platform for your Vitodens 100W and Vitodens 200W (up to 352) series wall-mounted boilers (highlight brand recognition: Viessmann, a trusted name in high-efficiency heating systems). This genuine Viessmann accessory offers unmatched functionality and complements the innovative design of your boiler.\u003c\/p\u003e\n\u003cp\u003eWhile wall-mounted boilers offer space-saving benefits, proper installation is crucial for optimal performance and safety. The Viessmann 7560569 Boiler Stand elevates your boiler to an ideal working height, providing several advantages.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBrand:\u003c\/b\u003e Viessmann\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMPN:\u003c\/b\u003e 7560569 \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDimensions:\u003c\/b\u003e 76.75\" H x 24\" W x 19.625\" D\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompatible With:\u003c\/b\u003e Vitodens 100-W, WB1B 26 and 35; Vitodens 100-W, WB1B 26 and 35 with CombiPLUS; Vitodens 100-W, B1HA 26, 35, 94, 125; Vitodens 100-W, B1KA 35, 125; Vitodens 100-W, B1HE 85, 120, 150, 199; Vitodens 100-W, B1KE 120, 199; Vitodens 200-W, B2HA 19-100, 285-352; Vitodens 200-W, B2HB 19 to 199; Vitodens 200-W, B2HE 85, 120, 150, 199\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe sleek design of the Viessmann stand enhances your boiler, delivering a clean and professional finish to your mechanical room. Specifically crafted for the Vitodens 100W and Vitodens 200W (up to 352) series boilers, it ensures a perfect fit and optimal performance.\u003c\/p\u003e\n\u003cp\u003eWhen using the boiler stand, ensure it is securely fastened to the floor. The stand provides a stable base, minimizing vibration and potential damage to the boiler or surrounding components. For optimal stability, it is recommended to use durable concrete expansion anchors like the Hilti model KB-TZ 3\/8 x 4 or an equivalent. This ensures a dependable and reliable setup that enhances the longevity and safety of your boiler system.\u003c\/p\u003e\n\u003cp\u003eA raised boiler simplifies maintenance and service for qualified technicians, providing optimal airflow for efficient operation. The thoughtful design of the stand ensures proper airflow around the boiler, enhancing its performance and reliability. This smart feature underscores the importance of maintaining peak efficiency, making it an essential component for any high-performing system.\u003c\/p\u003e\n\u003cp\u003eThe boiler stand is engineered for the free-standing installation of a single boiler within a mechanical room, offering a reliable solution for your heating needs. Designed for seamless installation by qualified plumbers, it minimizes downtime and ensures consistent performance. The stand features a robust construction with two legs, an upper rack assembly, a CombiPLUS mounting bracket, and essential mounting hardware, making it a dependable choice for efficient and straightforward setup.\u003c\/p\u003e\n\u0026lt;.p\u0026gt;The Viessmann 7560569 Boiler Stand isn't just an accessory; it's an investment in the performance, longevity, and safety of your Vitodens boiler system. Homeowners can enhance their boiler's efficiency and reliability by choosing a genuine Viessmann stand during installation, ensuring a perfect fit and seamless operation. Plumbers will appreciate the high-quality solution the Viessmann stand offers, reflecting their commitment to outstanding service and long-term system health for their clients. \n\u003cp\u003eCrafted from premium materials, this stand offers lasting support for your valuable boiler. Its robust design and precise engineering make it essential for any professional's toolkit, ensuring top performance and durability. Choose wisely for optimal boiler functionality and client satisfaction.\u003c\/p\u003e\n\u003ch3\u003eAdditional Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for Vitodens 100W and Vitodens 200W\u003c\/li\u003e\n\u003cli\u003eRecommended concrete expansion anchors include the Hilti model KB-TZ 3\/8 x 4 or equivalent\u003c\/li\u003e\n\u003cli\u003eMade of premium material\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":43932325118003,"sku":"VIES7560569","price":918.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/viessmann_207560569_20boiler_20stand_201.png?v=1784055386"},{"product_id":"viessmann-7722773-vitodens-100-w-b1he-120-120-000-btu-high-efficiency-hyrdronic-boiler","title":"Viessmann 7722773 Vitodens 100-W B1HE-120 120,000 BTU High Efficiency Hyrdronic Boiler","description":"\u003ch2\u003eViessmann 7722773 Vitodens 100‑W B1HE‑120 | 120,000 BTU High‑Efficiency Wall‑Hung Condensing Hydronic Boiler\u003c\/h2\u003e\n\n\u003cp\u003e\nLooking for reliable heat without taking up floor space? The \u003cstrong\u003eVitodens 100‑W B1HE‑120\u003c\/strong\u003e is a \u003cstrong\u003eheating‑only, wall‑hung gas condensing boiler\u003c\/strong\u003e that’s efficient, quiet, and easy to live with. It runs at \u003cstrong\u003e95% AFUE\u003c\/strong\u003e, modulates with a wide \u003cstrong\u003e10:1 turndown ratio\u003c\/strong\u003e, and uses an \u003cstrong\u003eInox‑Radial stainless steel heat exchanger\u003c\/strong\u003e to help keep performance high season after season. Built‑in WiFi works with \u003cstrong\u003eViCare\u003c\/strong\u003e for simple control from your phone.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Viessmann\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 7722773 (Vitodens 100‑W B1HE‑120, Heating‑Only)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Wall‑Mounted, Gas‑Fired Condensing Hydronic Boiler (Heating‑Only)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuel:\u003c\/strong\u003e Natural Gas or LP (software conversion)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Range:\u003c\/strong\u003e 12–120 MBH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDOE Heating Capacity:\u003c\/strong\u003e 113 MBH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNet AHRI (Water):\u003c\/strong\u003e 98 MBH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAFUE:\u003c\/strong\u003e 95%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTurndown Ratio:\u003c\/strong\u003e 10:1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Operating Pressure:\u003c\/strong\u003e 60 psig\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVenting (Coaxial):\u003c\/strong\u003e 80\/125 mm concentric (5\"×3\")\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVenting (Two‑Pipe):\u003c\/strong\u003e 3\" or 4\" polypropylene\/CPVC (equivalent lengths commonly up to ~98 ft for 3\" and ~148 ft for 4\")\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeating Connections:\u003c\/strong\u003e 3\/4\" NPT (supply\/return)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Connection:\u003c\/strong\u003e 3\/4\" NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical:\u003c\/strong\u003e 120V, 60 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions (W × D × H):\u003c\/strong\u003e ~17.7\" × 19.7\" × 33.8\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e 30 psi pressure relief valve, installation fittings, outdoor temperature sensor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited lifetime heat exchanger (residential; see terms)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eHigh Efficiency, Lower Fuel Bills\u003c\/h4\u003e\n\u003cp\u003e\nAt \u003cstrong\u003e95% AFUE\u003c\/strong\u003e with a \u003cstrong\u003e10:1 turndown ratio\u003c\/strong\u003e, the B1HE‑120 matches output to demand to reduce cycling and help cut gas costs.\n\u003c\/p\u003e\n\n\u003ch4\u003eHeating‑Only, Ideal For Indirect Hot Water\u003c\/h4\u003e\n\u003cp\u003e\nKeep space heating and domestic hot water separate. Pair the B1HE‑120 with an \u003cstrong\u003eindirect tank\u003c\/strong\u003e for abundant hot water and simple controls.\n\u003c\/p\u003e\n\n\u003ch4\u003eStainless Steel Heat Exchanger\u003c\/h4\u003e\n\u003cp\u003e\nThe \u003cstrong\u003eInox‑Radial\u003c\/strong\u003e stainless‑steel heat exchanger is purpose‑built for condensing operation—resisting corrosion and supporting long service life.\n\u003c\/p\u003e\n\n\u003ch4\u003eCompact, Quiet, Easy To Service\u003c\/h4\u003e\n\u003cp\u003e\nA slim, \u003cstrong\u003e17.7\"‑wide\u003c\/strong\u003e cabinet and \u003cstrong\u003efront‑access\u003c\/strong\u003e components make tight installs and annual service straightforward.\n\u003c\/p\u003e\n\n\u003ch4\u003eFlexible Fuel \u0026amp; Venting Options\u003c\/h4\u003e\n\u003cp\u003e\nConvert between \u003cstrong\u003enatural gas and LP\u003c\/strong\u003e in software. Choose \u003cstrong\u003e80\/125 mm concentric\u003c\/strong\u003e or \u003cstrong\u003e3\"\/4\" two‑pipe\u003c\/strong\u003e venting to handle longer runs and tricky layouts.\n\u003c\/p\u003e\n\n\u003ch4\u003eSmartphone Control With ViCare\u003c\/h4\u003e\n\u003cp\u003e\nBuilt‑in WiFi connects to the \u003cstrong\u003eViCare\u003c\/strong\u003e app so you can view temperatures, set schedules, and receive alerts right from your phone.\n\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.viessmann-us.com\/content\/dam\/public-brands\/us\/pdf\/technical-data-manuals\/vitodens_100-b1he_tdm.pdf\/_jcr_content\/renditions\/original.media_file.download_attachment.file\/vitodens_100-b1he_tdm.pdf\"\u003eTechnical Data Manual\u003c\/a\u003e\u003cbr\u003e\n\u003ca href=\"https:\/\/www.afsupply.com\/pub\/media\/catalog\/product\/matridtech\/viessmann\/spec\/vitodens_100b1he_is.pdf\"\u003eInstallation and Service Manual\u003c\/a\u003e\u003cbr\u003e\n\u003ca href=\"https:\/\/www.viessmann-us.com\/content\/dam\/public-brands\/us\/flyers\/Vitodens_100_W_B1HE_B1KE_06_2021.pdf\/_jcr_content\/renditions\/original.media_file.download_attachment.file\/Vitodens_100_W_B1HE_B1KE_06_2021.pdf\"\u003eProduct Flyer\u003c\/a\u003e\u003cbr\u003e\n\u003ca href=\"https:\/\/www.afsupply.com\/pub\/media\/catalog\/product\/matridtech\/viessmann\/spec\/user_manual_vitodens_100.pdf\"\u003eApplication Guide\u003c\/a\u003e\u003cbr\u003e","brand":"VIESSMANN","offers":[{"title":"Default Title","offer_id":43932325150771,"sku":"VIESB1HE120","price":3244.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/Vitodens-200-W_B2HE_120-MBH_Front_1280x1280_transparent_4638e24a-c16e-4760-af1f-6bda62941c7a.png?v=1784055404"},{"product_id":"viessmann-7658026-boiler-stand-for-vitodens-200-w-series-wall-boilers","title":"Viessmann 7658026 Boiler Stand for Vitodens 200-W Series Wall Boilers","description":"The boiler stand is used for free-standing installation of a single boiler within the mechanical room.When using the boiler stand, ensure that the stand is securely fastened to the floor.Recommended concrete expansion anchors are Hilti model KB-TZ 3\/8 x 4 or equivalent.Overall dimensions are 78.5\" H x 24.5\" D x Variable WidthThe rack is field assembled and contains two legs, upper rack assembly, lower rack assembley, and mounting hardware.For use with: Vitodens 200-W B2HA\/B2HB 160-530Submittal","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":43932325216307,"sku":"VIES7658026","price":1173.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/screenshot_202023-09-18_20122651.png?v=1784055391"},{"product_id":"viessmann-7722774-vitodens-100-w-b1he-150-150-000-btu-high-efficiency-hydronic-boiler","title":"Viessmann 7722774 Vitodens 100-W B1HE-150 150,000 BTU High Efficiency Hydronic Boiler","description":"\u003ch2\u003eViessmann 7722774 Vitodens 100‑W B1HE‑150 | 150,000 BTU High‑Efficiency Wall‑Hung Condensing Hydronic Boiler (95% AFUE)\u003c\/h2\u003e\n\u003cp\u003e\nThe \u003cstrong\u003eViessmann Vitodens 100‑W B1HE‑150\u003c\/strong\u003e is a \u003cstrong\u003ehigh‑efficiency, wall‑hung condensing boiler\u003c\/strong\u003e designed for reliable \u003cstrong\u003ehydronic space heating\u003c\/strong\u003e. With a \u003cstrong\u003e95% AFUE\u003c\/strong\u003e, a wide \u003cstrong\u003e10:1 turndown ratio\u003c\/strong\u003e, and Viessmann’s durable \u003cstrong\u003eInox‑Radial stainless steel heat exchanger\u003c\/strong\u003e, this \u003cstrong\u003e150,000 BTU\u003c\/strong\u003e model delivers steady comfort while helping lower fuel use. Built‑in WiFi brings the \u003cstrong\u003eViCare\u003c\/strong\u003e app to your phone for simple control and scheduling.\n\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Viessmann\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 7722774 (Vitodens 100‑W B1HE‑150, Heating‑Only)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Wall‑Mounted, Gas‑Fired Condensing \u003cem\u003eHeating‑Only\u003c\/em\u003e Boiler\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuel:\u003c\/strong\u003e Natural Gas or LP (field convertible; software change, no mechanical adjustments)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput (NG):\u003c\/strong\u003e 15.5–150 MBH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput (LP):\u003c\/strong\u003e 14–150 MBH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDOE Heating Capacity:\u003c\/strong\u003e 141 MBH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNet AHRI (Water):\u003c\/strong\u003e 123 MBH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAFUE:\u003c\/strong\u003e 95%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTurndown Ratio:\u003c\/strong\u003e 10:1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Operating Pressure:\u003c\/strong\u003e 60 psig\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNOx Emissions:\u003c\/strong\u003e \u0026lt; 20 ppm (at 3% O\u003csub\u003e2\u003c\/sub\u003e)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAltitude Rating:\u003c\/strong\u003e Up to 10,000 ft without input de‑rate (software setting)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNoise Level:\u003c\/strong\u003e ~51 dB (full load); ~31 dB (part load) @ 1 m\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVenting (Coax):\u003c\/strong\u003e 80\/125 mm up to 33 ft equiv.; 100\/150 (or 110\/160) up to 43 ft equiv.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVenting (Two‑Pipe):\u003c\/strong\u003e 3\" up to 98 ft equiv.; 4\" up to 148 ft equiv.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClearances:\u003c\/strong\u003e Zero clearance to combustibles; front service access\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeating Connections:\u003c\/strong\u003e 1\" NPT supply\/return\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDHW Tank Piping (for indirect):\u003c\/strong\u003e 1\" NPT supply\/return (use with indirect tank)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Connection:\u003c\/strong\u003e 3\/4\" NPT (male)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions (W × D × H):\u003c\/strong\u003e 17.75\" × 22\" × 34.5\" (450 × 556 × 875 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e 30 psi boiler PRV, installation fittings\/hardware, outdoor temperature sensor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited lifetime (residential applications)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eHigh Efficiency, Lower Fuel Bills\u003c\/h4\u003e\n\u003cp\u003eAt \u003cstrong\u003e95% AFUE\u003c\/strong\u003e and with a generous \u003cstrong\u003e10:1 turndown\u003c\/strong\u003e, the B1HE‑150 modulates smoothly to match real‑world demand—cutting cycling, improving comfort, and reducing gas consumption compared to older non‑condensing boilers.\u003c\/p\u003e\n\u003ch4\u003eHeating‑Only, Ideal For Indirect DHW\u003c\/h4\u003e\n\u003cp\u003ePair the B1HE‑150 with a \u003cem\u003eseparate\u003c\/em\u003e indirect water heater for robust domestic hot water. The boiler provides dedicated 1\" supply\/return connections for a tank coil and includes an outdoor sensor for easy outdoor‑reset control.\u003c\/p\u003e\n\u003ch4\u003eStainless Steel Inox‑Radial Heat Exchanger\u003c\/h4\u003e\n\u003cp\u003eViessmann’s \u003cstrong\u003eInox‑Radial stainless steel heat exchanger\u003c\/strong\u003e and \u003cstrong\u003eMatriX‑Plus\u003c\/strong\u003e burner are engineered to resist corrosion in condensing operation, helping the unit maintain efficiency year after year.\u003c\/p\u003e\n\u003ch4\u003eCompact, Quiet, Easy To Service\u003c\/h4\u003e\n\u003cp\u003eA slim \u003cstrong\u003e17.75\"‑wide\u003c\/strong\u003e cabinet, \u003cstrong\u003efront‑access components\u003c\/strong\u003e, and \u003cstrong\u003ezero clearance to combustibles\u003c\/strong\u003e simplify installations in tight mechanical rooms, closets, or utility spaces. Sound levels around \u003cstrong\u003e51 dB\u003c\/strong\u003e at full fire help keep homes quiet.\u003c\/p\u003e\n\u003ch4\u003eFlexible Fuel \u0026amp; Venting Options\u003c\/h4\u003e\n\u003cp\u003eConvert between natural gas and propane via software settings. Choose \u003cstrong\u003ecoaxial (80\/125 or 100\/150)\u003c\/strong\u003e or \u003cstrong\u003etwo‑pipe (3\" or 4\")\u003c\/strong\u003e venting, with equivalent lengths up to \u003cstrong\u003e148 ft\u003c\/strong\u003e (4\" two‑pipe) to fit challenging layouts. Rated for \u003cstrong\u003ealtitudes to 10,000 ft\u003c\/strong\u003e without derating.\u003c\/p\u003e\n\u003ch4\u003eBuilt‑In WiFi \u0026amp; ViCare App\u003c\/h4\u003e\n\u003cp\u003eConnect the boiler to your network and use \u003cstrong\u003eViCare\u003c\/strong\u003e for remote temperature adjustments, schedules, and helpful notifications—from anywhere.\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":43932325380147,"sku":"VIESB1HE150","price":3814.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/Vitodens-200-W_B2HE_120-MBH_Front_1280x1280_transparent_be69b148-a9ca-41a1-acda-256ee341c720.png?v=1784055398"},{"product_id":"viessmann-7722772-vitodens-100-w-b1he-85-85-000-btu-high-efficiency-hyrdronic-boiler","title":"Viessmann 7722772 Vitodens 100-W B1HE-85 85,000 BTU High Efficiency Hyrdronic Boiler","description":"\u003ch2\u003eViessmann 7722772 Vitodens 100‑W B1HE‑85 | 85,000 BTU High‑Efficiency Wall‑Hung Condensing Hydronic Boiler\u003c\/h2\u003e\n\n\u003cp\u003e\nLooking for reliable heat without taking up floor space? The \u003cstrong\u003eVitodens 100‑W B1HE‑85\u003c\/strong\u003e is a \u003cstrong\u003eheating‑only, wall‑hung gas condensing boiler\u003c\/strong\u003e that’s efficient, quiet, and easy to live with. It runs at \u003cstrong\u003e95% AFUE\u003c\/strong\u003e, modulates from \u003cstrong\u003e8.5–85 MBH\u003c\/strong\u003e to match demand, and uses an \u003cstrong\u003eInox‑Radial stainless steel heat exchanger\u003c\/strong\u003e to help keep performance high season after season. Built‑in WiFi works with \u003cstrong\u003eViCare\u003c\/strong\u003e for simple control from your phone.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Viessmann\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 7722772 (Vitodens 100‑W B1HE‑85, Heating‑Only)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Wall‑Mounted, Gas‑Fired Condensing Hydronic Boiler (Heating‑Only)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuel:\u003c\/strong\u003e Natural Gas or LP \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Range:\u003c\/strong\u003e 8.5–85 MBH (NG); 14–85 MBH (LP)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDOE Heating Capacity:\u003c\/strong\u003e 80 MBH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNet AHRI (Water):\u003c\/strong\u003e 70 MBH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAFUE:\u003c\/strong\u003e 95%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTurndown Ratio:\u003c\/strong\u003e 10:1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Operating Pressure:\u003c\/strong\u003e 45 psig\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVenting (Coaxial):\u003c\/strong\u003e 80\/125 mm or 100\/150 mm concentric (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVenting (Two‑Pipe):\u003c\/strong\u003e 2\" up to 98 ft*, 3\" up to 164 ft, 4\" up to 198 ft equivalent length (*automatic 2% input reduction)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAltitude:\u003c\/strong\u003e Up to 10,000 ft (software setting)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNOx Emissions:\u003c\/strong\u003e \u0026lt; 20 ppm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeating Connections:\u003c\/strong\u003e 3\/4\" NPT (supply\/return)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Connection:\u003c\/strong\u003e 3\/4\" NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical:\u003c\/strong\u003e 120V, 60 Hz; outdoor temperature sensor included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions (W × D × H):\u003c\/strong\u003e ~17‑3\/4\" × 19‑3\/4\" × 33‑3\/4\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 108 lb\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e 30 psi pressure relief valve, installation fittings, outdoor temperature sensor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited lifetime heat exchanger (residential; see terms)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eHigh Efficiency, Lower Fuel Bills\u003c\/h4\u003e\n\u003cp\u003e\nAt \u003cstrong\u003e95% AFUE\u003c\/strong\u003e with a \u003cstrong\u003e10:1 turndown ratio\u003c\/strong\u003e, the B1HE‑85 matches output to demand to reduce cycling and help cut gas costs.\n\u003c\/p\u003e\n\n\u003ch4\u003eRight‑Sized For Small To Mid‑Size Homes\u003c\/h4\u003e\n\u003cp\u003e\nThe \u003cstrong\u003e8.5–85 MBH\u003c\/strong\u003e input range is a great fit for many baseboard and radiant systems. It runs gently on mild days and ramps up when winter really hits—keeping rooms comfortable without oversizing.\n\u003c\/p\u003e\n\n\u003ch4\u003eStainless Steel Heat Exchanger\u003c\/h4\u003e\n\u003cp\u003e\nThe \u003cstrong\u003eInox‑Radial\u003c\/strong\u003e stainless‑steel heat exchanger is purpose‑built for condensing operation—resisting corrosion and supporting long service life.\n\u003c\/p\u003e\n\n\u003ch4\u003eCompact, Quiet, Easy To Service\u003c\/h4\u003e\n\u003cp\u003e\nA slim, \u003cstrong\u003e17.7\"‑wide\u003c\/strong\u003e cabinet and \u003cstrong\u003efront‑access\u003c\/strong\u003e components make tight installs and annual service straightforward. Sound levels are designed to be pleasantly quiet in typical mechanical spaces.\n\u003c\/p\u003e\n\n\u003ch4\u003eFlexible Venting For Retrofits\u003c\/h4\u003e\n\u003cp\u003e\nChoose \u003cstrong\u003econcentric 80\/125 mm\u003c\/strong\u003e (or \u003cstrong\u003e100\/150 mm\u003c\/strong\u003e) or \u003cstrong\u003e2\"\/3\"\/4\" two‑pipe\u003c\/strong\u003e venting to handle longer runs and tricky layouts—ideal for replacements where routing is limited.\n\u003c\/p\u003e\n\n\u003ch4\u003eSmartphone Control With ViCare\u003c\/h4\u003e\n\u003cp\u003e\nBuilt‑in WiFi connects to the \u003cstrong\u003eViCare\u003c\/strong\u003e app so you can view temperatures, set schedules, and receive alerts right from your phone.\n\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":43932325445683,"sku":"VIESB1HE85","price":3104.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/Vitodens-200-W_B2HE_120-MBH_Front_1280x1280_transparent_48e18bc3-da76-4bb9-85a3-c0fc661ea3aa.png?v=1784055418"},{"product_id":"viessmann-7722775-vitodens-100-w-b1he-199-199-000-btu-high-efficiency-hyrdronic-boiler","title":"Viessmann 7722775 Vitodens 100-W B1HE-199 199,000 BTU High Efficiency Hyrdronic Boiler","description":"\u003ch2\u003eHeat Your Home Smarter With The Viessmann Vitodens 100‑W B1HE‑199 | 199,000 BTU Wall‑Hung Condensing Boiler (7722775)\u003c\/h2\u003e\n\n\n\u003cp\u003e\nLooking for powerful, efficient heat without giving up floor space? The \u003cstrong\u003eVitodens 100‑W B1HE‑199\u003c\/strong\u003e is a \u003cstrong\u003eheating‑only, wall‑hung gas condensing boiler\u003c\/strong\u003e that pairs everyday simplicity with serious performance. You get a \u003cstrong\u003e95% AFUE\u003c\/strong\u003e, a wide \u003cstrong\u003e10:1 turndown\u003c\/strong\u003e to match output to demand, and Viessmann’s proven \u003cstrong\u003eInox‑Radial stainless steel heat exchanger\u003c\/strong\u003e for long‑term reliability. Built‑in WiFi connects to the \u003cstrong\u003eViCare\u003c\/strong\u003e app so you can check status and adjust schedules right from your phone.\n\u003c\/p\u003e\n\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Viessmann\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 7722775 (Vitodens 100‑W B1HE‑199, Heating‑Only)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Wall‑Mounted, Gas‑Fired Condensing Hydronic Boiler (Heating‑Only)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel:\u003c\/strong\u003e Natural Gas or LP (software conversion; no mechanical changes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Range:\u003c\/strong\u003e 19.9–199 MBH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDOE Heating Capacity:\u003c\/strong\u003e 187 MBH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet AHRI (Water):\u003c\/strong\u003e 163 MBH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAFUE:\u003c\/strong\u003e 95%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTurndown Ratio:\u003c\/strong\u003e 10:1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Operating Pressure:\u003c\/strong\u003e 60 psig\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVenting (Coaxial):\u003c\/strong\u003e 80\/125 mm concentric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVenting (Two‑Pipe):\u003c\/strong\u003e 3\" polypropylene\/CPVC (direct‑vent sealed combustion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating Connections:\u003c\/strong\u003e 1\" NPT (supply\/return)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Connection:\u003c\/strong\u003e 3\/4\" NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical:\u003c\/strong\u003e 120V, 60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Built‑in boiler pump, 30 psi pressure relief valve, installation fittings, outdoor temperature sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (W × D × H):\u003c\/strong\u003e ~17.7\" × ~22\" × ~39\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAltitude:\u003c\/strong\u003e Approved to 10,000 ft (no input de‑rate in software)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited lifetime heat exchanger (residential; see terms)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\n\u003ch4\u003eHigh Efficiency, Lower Fuel Bills\u003c\/h4\u003e\n\u003cp\u003e\nThe Vitodens 100‑W runs at \u003cstrong\u003e95% AFUE\u003c\/strong\u003e and modulates over a \u003cstrong\u003e10:1\u003c\/strong\u003e range to match real‑world loads. That means fewer on\/off cycles, quieter operation, and less wasted energy throughout the heating season.\n\u003c\/p\u003e\n\n\n\u003ch4\u003eStainless Steel Heat Exchanger\u003c\/h4\u003e\n\u003cp\u003e\nAt the core is Viessmann’s \u003cstrong\u003eInox‑Radial\u003c\/strong\u003e stainless‑steel heat exchanger, built to resist corrosion in condensing operation and deliver steady efficiency year after year.\n\u003c\/p\u003e\n\n\n\u003ch4\u003eCompact, Wall‑Hung Footprint\u003c\/h4\u003e\n\u003cp\u003e\nA slim \u003cstrong\u003e17.7‑inch‑wide\u003c\/strong\u003e cabinet mounts on the wall to free up floor space. Front‑access service points and bottom‑entry piping help speed up installation and maintenance.\n\u003c\/p\u003e\n\n\n\u003ch4\u003eFlexible Fuel \u0026amp; Venting\u003c\/h4\u003e\n\u003cp\u003e\nSwitch between \u003cstrong\u003enatural gas and LP\u003c\/strong\u003e in software—no orifice swap needed. Choose \u003cstrong\u003e80\/125 mm concentric\u003c\/strong\u003e or \u003cstrong\u003e3\" two‑pipe\u003c\/strong\u003e venting to work around longer runs and tricky retrofit layouts.\n\u003c\/p\u003e\n\n\n\u003ch4\u003eSmartphone Control With ViCare\u003c\/h4\u003e\n\u003cp\u003e\nBuilt‑in WiFi connects to Viessmann’s \u003cstrong\u003eViCare\u003c\/strong\u003e app so you can view temperatures, set schedules, and get alerts from virtually anywhere.\n\u003c\/p\u003e\n\n\u003cp\u003e Want to learn more about this boiler? Read more about it in our article on \u003ca href=\"https:\/\/plumbing-deals.com\/blogs\/plumbing-blog\/the-best-steam-boilers-of-2025-a-comprehensive-guide\"\u003ethe best steam boilers.\u003c\/a\u003e\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":43932325412915,"sku":"VIESB1HE199","price":4060.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/Vitodens-200-W_B2HE_120-MBH_Front_1280x1280_transparent_743a6646-e614-4980-b9b1-34693c5669f9.png?v=1784055431"},{"product_id":"viessmann-7722779-vitodens-200-w-b2he-120-high-efficiency-hydronic-boiler","title":"Viessmann 7722779 Vitodens 200-W B2HE-120 High Efficiency Hydronic Boiler","description":"\u003ch2\u003ePower Your Home With Viessmann 7722779 Vitodens 200-W B2HE-120 120 MBH High-Efficiency Hydronic Boiler\u003c\/h2\u003e \u003cp\u003e Need reliable, quiet heat with lower fuel bills? The \u003cstrong\u003eVitodens 200-W B2HE-120\u003c\/strong\u003e is a wall-mounted \u003cstrong\u003egas-fired condensing boiler\u003c\/strong\u003e that pairs a stainless Inox-Radial heat exchanger with a modulating MatriX-Plus burner for steady comfort, 95% AFUE performance, and flexible venting—great for homes and light commercial spaces. \u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Viessmann\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 7722779\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Wall-Mounted Gas-Fired Condensing (Heat-Only) Hydronic Boiler\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSize\/Capacity:\u003c\/strong\u003e 8.5–120 MBH input (NG); Net AHRI 98 MBH; 95% AFUE\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial\/Finish:\u003c\/strong\u003e Stainless-steel Inox-Radial heat exchanger; MatriX-Plus modulating cylinder burner\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e Sound rating 59 dB (max) \/ 34 dB (min); max condensate 1.2 USG\/h; altitude operation up to 10,000 ft\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConnections\/Fit:\u003c\/strong\u003e Heating supply\/return 3\/4\" NPTM; DHW tank supply\/return 3\/4\" NPT; gas 3\/4\" NPTF; 3\" (80 mm) flue with 5\" (125 mm) coaxial air or 3\" single-pipe; direct-vent; vent runs up to 180 ft; 120 VAC, 60 Hz\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 33-3\/8\" H × 17-3\/4\" W × 19-3\/4\" D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Pressure gauge; installation fittings with 30 psig PRV; DHW sensor; on-board 7\" touchscreen control with outdoor sensor; wall-mount bracket \u0026amp; hardware; integral variable-speed boiler pump\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e Constructed to CSA B51 \u0026amp; ASME Section IV; low-NOx (\u0026lt;20 ppm); compliant with SCAQMD 1146.2\/BAAQMD Reg. 9-6\/SJVAPCD 4308\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited lifetime heat-exchanger warranty (residential); parts up to 5 years with registration—see Viessmann warranty sheet\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eSave Fuel With High Efficiency\u003c\/h4\u003e \u003cp\u003eAt up to 95% AFUE with intensive condensation, the B2HE-120 turns more of every therm into usable heat—helping trim monthly energy costs without sacrificing comfort.\u003c\/p\u003e \u003ch4\u003eEveryday Performance You Can Feel\u003c\/h4\u003e \u003cp\u003eA wide input range (8.5–120 MBH) lets the boiler modulate to match changing loads, delivering steady, quiet heat and reducing short-cycling for longer component life.\u003c\/p\u003e \u003ch4\u003eDurable Materials, Easier Care\u003c\/h4\u003e \u003cp\u003eThe stainless-steel Inox-Radial heat exchanger and MatriX-Plus burner are engineered for clean combustion and long service—designed to resist corrosion and maintain efficiency over time.\u003c\/p\u003e \u003ch4\u003eInstaller-Friendly Flexibility\u003c\/h4\u003e \u003cp\u003eMultiple venting options (coaxial or two-pipe) with runs up to 180 ft simplify layouts, while standard 3\/4\" connections and an integral variable-speed pump streamline piping and commissioning.\u003c\/p\u003e \u003ch4\u003eSmart Controls \u0026amp; Connectivity\u003c\/h4\u003e \u003cp\u003eA built-in 7\" color touchscreen with WiFi enables outdoor-reset control, multi-temperature space heating, and intuitive setup so systems start quickly and run efficiently day-to-day.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.viessmann-us.com\/content\/dam\/public-brands\/ca\/pdfs\/wall-mount\/vitodens_200-b2he_tdm.pdf\/_jcr_content\/renditions\/original.media_file.download_attachment.file\/vitodens_200-b2he_tdm.pdf\"\u003eTechnical Data Manual\u003c\/a\u003e\u003cbr\u003e\n\u003ca href=\"https:\/\/www.viessmann-us.com\/content\/dam\/public-brands\/us\/flyers\/Vitodens_200_W_B2HE_06_2021.pdf\/_jcr_content\/renditions\/original.media_file.download_attachment.file\/Vitodens_200_W_B2HE_06_2021.pdf\"\u003eProduct Flyer\u003c\/a\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":43932325576755,"sku":"VIESB2HE120","price":5120.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/Vitodens-200-W_B2HE_120-MBH_Front_1280x1280_transparent_162604ce-a26f-4d02-83e5-47e947c415c9.png?v=1784055427"},{"product_id":"viessmann-cu3a-125-vitocrossal-300-cu3a-125-000-btu-gas-condensing-boiler","title":"Viessmann CU3A-125 Vitocrossal 300 CU3A 125,000 BTU Gas Condensing Boiler","description":"\u003ch2\u003eElevate Your Heat With Viessmann CU3A-125 Vitocrossal 300 125 MBH Floor-Standing Condensing Boiler\u003c\/h2\u003e \u003cp\u003e Looking for high-output comfort with lower fuel bills and fewer callbacks? The \u003cstrong\u003eVitocrossal 300 CU3A-125\u003c\/strong\u003e is a floor-standing \u003cstrong\u003egas-fired condensing boiler\u003c\/strong\u003e that pairs Viessmann’s stainless \u003cstrong\u003eInox-Crossal\u003c\/strong\u003e heat exchanger with a self-calibrating MatriX dome burner for quiet, steady heat and 95% AFUE performance—ideal for radiator retrofits or multi-zone fin-tube systems. \u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Viessmann\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e CU3A-125\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Floor-Standing Gas-Fired Condensing (Heat-Only) Hydronic Boiler\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSize\/Capacity:\u003c\/strong\u003e 25–125 MBH input; Net AHRI 101 MBH; 95% AFUE\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial\/Finish:\u003c\/strong\u003e Stainless-steel Inox-Crossal heat exchanger; MatriX dome modulating burner\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e High-mass design with ~13.0 USG water content; sound rating ~55 dB max \/ 33 dB min; condensate up to ~1.2 USG\/h\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConnections\/Fit:\u003c\/strong\u003e 1¼\" NPTM heating supply \u0026amp; return; ¾\" NPTF gas; ¾\" NPTF PRV; 3\" (80 mm) flue \u0026amp; 3\" combustion air; ¾\" hose condensate\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 61.5\" H (closed) \/ 67\" H (open) × 26\" W × 27\" D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Vitotronic outdoor-reset control with outdoor sensor; 30 psig PRV \u0026amp; fittings; T\u0026amp;P gauge (field-installed on supply); factory pre-wired\/piped internals; NG factory-set with LP conversion labels in literature set\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e ENERGY STAR; ANSI Z21.13\/CSA 4.9; ASME Section IV \/ CSA B51 construction\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited lifetime heat-exchanger warranty (residential)—see Viessmann warranty sheet\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eSave Fuel With High Efficiency\u003c\/h4\u003e \u003cp\u003eAt 95% AFUE and up to 98% efficient under low-return temps, the CU3A condenses deeply to turn more of every therm into usable heat—cutting operating costs season after season.\u003c\/p\u003e \u003ch4\u003eEveryday Performance You Can Feel\u003c\/h4\u003e \u003cp\u003eA 25–125 MBH modulating input and high-mass water volume smooth out cycling and deliver quiet, even heat across changing loads—perfect for cast-iron radiators or mixed high-temp zones.\u003c\/p\u003e \u003ch4\u003eBuilt To Last\u003c\/h4\u003e \u003cp\u003eThe Inox-Crossal stainless heat exchanger is constructed to ASME Section IV\/CSA B51 and designed for a self-cleaning condensate “sheen,” helping maintain efficiency and resist corrosion over time.\u003c\/p\u003e \u003ch4\u003eInstaller-Friendly Flexibility\u003c\/h4\u003e \u003cp\u003eDirect-vent coaxial or two-pipe options with long allowable runs (layout-dependent, up to ~198 ft per Viessmann guidelines) make venting straightforward. Standard 1¼\" supply\/return and ¾\" gas keep piping simple.\u003c\/p\u003e \u003ch4\u003eSmart Controls \u0026amp; Compatibility\u003c\/h4\u003e \u003cp\u003eThe integrated Vitotronic control with outdoor reset, zone-circuit capability, and start-up wizard speeds commissioning. High-altitude operation is supported up to 10,000 ft (electronic adjustment; de-rate applies).\u003c\/p\u003e \u003ch4\u003eFits Your Space\u003c\/h4\u003e \u003cp\u003eA compact footprint (26\" × 27\") and zero-clearance to combustibles rating allow closet or alcove installs while keeping full front\/rear service access.\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":43932325707827,"sku":"VIESCU3A125","price":5313.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/Vitocrossal-300-CU3A_Front_1280x1280_transparent_fdcacb2a-e033-4ccd-b52d-0c34f52c4292.png?v=1784203479"},{"product_id":"viessmann-cu3a-160-vitocrossal-300-cu3a-160-000-btu-gas-condensing-boiler","title":"Viessmann CU3A-160 Vitocrossal 300 CU3A 160,000 BTU Gas Condensing Boiler","description":"\u003ch2\u003eRight-Size Your Heat With Viessmann CU3A-160 Vitocrossal 300 160 MBH Floor-Standing Condensing Boiler\u003c\/h2\u003e \u003cp\u003e Need steady, high-temperature comfort without the fuel waste? The \u003cstrong\u003eVitocrossal 300 CU3A-160\u003c\/strong\u003e is a floor-standing \u003cstrong\u003egas-fired condensing boiler\u003c\/strong\u003e that combines a high-mass stainless \u003cstrong\u003eInox-Crossal\u003c\/strong\u003e heat exchanger with a modulating MatriX dome burner for quiet, even heat and 95% AFUE—ideal for cast-iron radiator retrofits and multi-zone fin-tube systems. \u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Viessmann\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e CU3A-160\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Floor-Standing Gas-Fired Condensing (Heat-Only) Hydronic Boiler\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSize\/Capacity:\u003c\/strong\u003e 43–160 MBH input; Net AHRI 129 MBH; 95% AFUE\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial\/Finish:\u003c\/strong\u003e Stainless-steel Inox-Crossal heat exchanger; MatriX modulating dome burner\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e Sound 53 dB (max) \/ 33 dB (min); condensate up to ~1.6 USG\/h; boiler water content 18.8 USG; altitude operation to 10,000 ft (de-rate applies)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConnections\/Fit:\u003c\/strong\u003e Heating supply\/return 1¼\" NPTM; PRV ¾\" NPTF; boiler drain 1\" NPTM; gas ¾\" NPTF; direct-vent; 4\" flue \/ 3\" combustion air; allowable vent lengths up to ~198 ft (layout-dependent)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 61.5\"–67\" H × 26\" W × 31.5\" D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Vitotronic 200 outdoor-reset control with outdoor sensor; installation fittings with 30 psig PRV; T\u0026amp;P gauge (field-installed on supply); pre-wired and internally piped; NG factory-set with LP conversion labels in literature set\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e ENERGY STAR (95% AFUE); ANSI Z21.13\/CSA 4.9; ASME Section IV \/ CSA B51; zero-clearance to combustibles when installed per instructions\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited lifetime heat-exchanger warranty (residential); parts coverage up to 5 years with registration—see Viessmann warranty\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eSave Fuel With High Efficiency\u003c\/h4\u003e \u003cp\u003eAt 95% AFUE—and up to 98% efficiency at low return temps—the CU3A-160 squeezes more heat out of every therm, reducing monthly fuel spend while keeping comfort high.\u003c\/p\u003e \u003ch4\u003eEveryday Performance You Can Feel\u003c\/h4\u003e \u003cp\u003eA 43–160 MBH input range and high-mass water volume minimize short-cycling, delivering smooth, quiet heat across changing loads—great for older radiators and mixed high-temp zones.\u003c\/p\u003e \u003ch4\u003eBuilt To Last\u003c\/h4\u003e \u003cp\u003eThe Inox-Crossal stainless heat exchanger and MatriX burner are engineered for clean combustion and self-shedding condensate, helping maintain efficiency and resist corrosion over years of service.\u003c\/p\u003e \u003ch4\u003eInstaller-Friendly Flexibility\u003c\/h4\u003e \u003cp\u003eChoose coaxial or two-pipe direct venting with long allowable runs (up to ~198 ft, layout-dependent). Standard 1¼\" supply\/return and ¾\" gas connections simplify piping and commissioning.\u003c\/p\u003e \u003ch4\u003eSmart Controls \u0026amp; Compatibility\u003c\/h4\u003e \u003cp\u003eOn-board Vitotronic outdoor-reset control supports multi-circuit designs and easy setup, so systems start quickly and run efficiently in day-to-day operation.\u003c\/p\u003e \u003ch4\u003eFits Your Space\u003c\/h4\u003e \u003cp\u003eCompact footprint and a listing for zero-clearance to combustibles enable closet or alcove installs while keeping full front\/rear service access.\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":43932325838899,"sku":"VIESCU3A160","price":6196.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/Vitocrossal-300-CU3A_Front_1280x1280_transparent.png?v=1784055451"}],"url":"https:\/\/plumbing-deals.com\/collections\/boilers.oembed?page=5","provider":"Plumbing Deals","version":"1.0","type":"link"}