{"product_id":"pennco-silver-15b-235k-9-zone-235-000-btu-residential-cast-iron-natural-gas-boiler","title":"Pennco Silver 15B-235K 9 Zone 235,000 BTU Residential Cast Iron Natural Gas Boiler","description":"\u003ch2\u003eMake The Switch To Efficient, Quiet Heat With The Viessmann Vitodens 100‑W B1HE‑85 85,000 BTU Wall‑Hung Condensing Boiler\u003c\/h2\u003ency Wall‑Hung Condensing Hydronic Boiler\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 Pennco\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 15B‑235K (15B Series K)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Gas‑Fired, Cast Iron Non‑Condensing Hot Water Boiler\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:\u003c\/strong\u003e 235,000 BTU\/h\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDOE Heating Capacity:\u003c\/strong\u003e 197,000 BTU\/h\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNet AHRI (Water):\u003c\/strong\u003e 171,000 BTU\/h\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAFUE:\u003c\/strong\u003e 84%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIgnition:\u003c\/strong\u003e Intermittent Electronic with factory vent damper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVenting:\u003c\/strong\u003e Built‑in draft diverter; 7\" flue to a lined masonry or metal chimney\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWater Return\/Supply:\u003c\/strong\u003e 1‑1\/4\" NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Inlet:\u003c\/strong\u003e 1\" NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWater Content:\u003c\/strong\u003e 4.6 gallons\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical:\u003c\/strong\u003e 120V, 60 Hz; \u0026lt;12 A (15 A circuit recommended)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions (W × H × D):\u003c\/strong\u003e 27‑1\/2\" × 32‑1\/8\" × 24‑1\/8\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 20‑Year Limited 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":"PENNCO BOILERS","offers":[{"title":"Default Title","offer_id":44013740949555,"sku":"PEN15B235K","price":4855.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/Pennco-15B095K-84-AFUE-92-5-MBH-NG-Natural-Gas-Boiler-with-Spark-Ignition-and-Taco-Circulator-Pump_f4091abf-9bcc-4ee3-ac33-83f3fc93d5b9.jpg?v=1769808424","url":"https:\/\/plumbing-deals.com\/products\/pennco-silver-15b-235k-9-zone-235-000-btu-residential-cast-iron-natural-gas-boiler","provider":"Plumbing Deals","version":"1.0","type":"link"}