{"product_id":"pennco-silver-15b-120k-5-zone-120-000-btu-residential-cast-iron-natural-gas-boiler","title":"Pennco Silver 15B-120K 5 Zone 120,000 BTU Residential Cast Iron Natural Gas Boiler","description":"\u003ch2\u003eStep Up To Reliable Whole‑Home Heat With The Pennco Silver 15B‑120K 120,000 BTU Cast‑Iron Hot Water Gas Boiler\u003c\/h2\u003e\n\n\u003cp\u003e\nNeed a proven replacement boiler that’s easy to live with and easy to service? The \u003cstrong\u003ePennco Silver 15B‑120K\u003c\/strong\u003e is a compact,\n\u003cstrong\u003ecast‑iron, chimney‑vented hot water boiler\u003c\/strong\u003e that delivers dependable comfort for baseboard and radiator systems. You get \u003cstrong\u003e84% AFUE\u003c\/strong\u003e efficiency,\n\u003cstrong\u003eelectronic ignition\u003c\/strong\u003e and a \u003cstrong\u003emotorized vent damper\u003c\/strong\u003e to help cut standby losses, plus left‑ or right‑side \u003cstrong\u003epiping and wiring flexibility\u003c\/strong\u003e to make change‑outs cleaner.\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‑120K (15B Series K)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Gas‑Fired, Non‑Condensing Hot Water Boiler (Cast Iron, Category I, 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:\u003c\/strong\u003e 120,000 BTU\/h\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDOE Heating Capacity:\u003c\/strong\u003e 101,000 BTU\/h\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNet AHRI (Water):\u003c\/strong\u003e 88,000 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; 6\" flue to a lined masonry or listed 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\/2\" NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWater Content:\u003c\/strong\u003e 2.8 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 16‑1\/4\" × 32‑1\/8\" × 24‑1\/8\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Vent damper, draft hood, jacket; parts kit with 30 psi relief valve, drain valve, T\u0026amp;P gauge, fittings\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\u003eCompact, Cast‑Iron Durability\u003c\/h4\u003e\n\u003cp\u003e\nA rugged \u003cstrong\u003ecast‑iron heat exchanger\u003c\/strong\u003e with dry‑leg end sections is pressure‑tested at the factory for long service life—ideal for traditional baseboard and radiator systems.\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 \u003cstrong\u003emotorized vent damper\u003c\/strong\u003e helps reduce standby losses compared with older standing‑pilot designs.\n\u003c\/p\u003e\n\n\u003ch4\u003eFlexible Left\/Right Piping \u0026amp; Wiring\u003c\/h4\u003e\n\u003cp\u003e\nWater, gas, and electrical connections can be routed from either side of the cabinet, making change‑outs cleaner in tight mechanical rooms.\n\u003c\/p\u003e\n\n\u003ch4\u003eLow‑Profile Draft Diverter\u003c\/h4\u003e\n\u003cp\u003e\nThe integrated \u003cstrong\u003edraft diverter\u003c\/strong\u003e lowers overall height, so the 15B‑120K fits \u003cstrong\u003elow‑ceiling basements\u003c\/strong\u003e where external draft hoods are a challenge.\n\u003c\/p\u003e\n\n\u003ch4\u003eZoning‑Ready Hydronic Heating\u003c\/h4\u003e\n\u003cp\u003e\nPair with zone valves or circulators (not included) to serve multiple heating zones (often five or more, depending on design). The \u003cstrong\u003e1‑1\/4\" tappings\u003c\/strong\u003e support common residential manifolds and near‑boiler piping layouts.\n\u003c\/p\u003e\n\u003ca href=\"https:\/\/penncoboilers.com\/sites\/default\/files\/240013220%20Pennco%2015B-K%20Sell%20Sheet%2009-10-21%20WEB.pdf\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline; color: #0000ff;\"\u003eProduct Brochure\u003c\/span\u003e\u003c\/a\u003e\u003cli\u003e\u003ca href=\"https:\/\/penncoboilers.com\/sites\/default\/files\/240013258%20%2015B-K%20USER%20MANUAL%20REV%20E.pdf\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline; color: #0000ff;\"\u003eUser Manual\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\u003cli\u003e\u003ca href=\"https:\/\/penncoboilers.com\/sites\/default\/files\/240013661%2015B-K%20IOM%20REV%20B.pdf\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline; color: #0000ff;\"\u003eInstallation and Operating Manual\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\u003cli\u003e\u003ca href=\"https:\/\/penncoboilers.com\/sites\/default\/files\/240013663%2015B-K%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\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","brand":"PENNCO BOILERS","offers":[{"title":"Default Title","offer_id":44013739442227,"sku":"PEN15B120K","price":3310.6,"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_01281cbe-8ed5-4d59-ac57-46f36c259262.jpg?v=1769808272","url":"https:\/\/plumbing-deals.com\/products\/pennco-silver-15b-120k-5-zone-120-000-btu-residential-cast-iron-natural-gas-boiler","provider":"Plumbing Deals","version":"1.0","type":"link"}