{"product_id":"navien-nfb-200h-fire-tube-condensing-boiler-199000-btu-high-efficiency-heat-only-gas-boiler","title":"Navien NFB-200H Fire Tube Condensing Boiler – 199,000 BTU High Efficiency Heat-Only Gas Boiler","description":"\u003cp class=\"bx-us-note\"\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e this is the US version of this product, supplied with US gas fittings. A UK-compatible regulator and hose are needed to use it with UK propane or butane bottles, and we recommend having the connection checked by a Gas Safe registered engineer. Manufacturer warranty terms may differ for US-version products.\u003c\/p\u003e\n\u003cp\u003eUpgrade to high-efficiency heating and endless hot water. The \u003cstrong\u003eNavien NFB-200H Fire Tube Condensing Boiler\u003c\/strong\u003e uses condensing technology to cut fuel use while delivering reliable comfort for your home.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNavien NFB-200H – Condensing Heating Boiler – 199,000 BTU\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Navien NFB-200H is a high-efficiency condensing heating boiler designed for residential and light commercial applications. The boiler features a 15:1 turndown ratio for precise load matching and energy savings. Its patented stainless steel fire tube heat exchanger is paired with a non-metallic condensate base for durability and corrosion resistance. The NFB-200H includes advanced controls, supports common venting and cascading, and is approved for high-altitude installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e15:1 turndown ratio for efficient performance across variable loads\u003c\/li\u003e\n\u003cli\u003ePatented stainless steel fire tube heat exchanger with non-metallic condensate base\u003c\/li\u003e\n\u003cli\u003e2″ (5.1 cm) venting up to 65 ft (19.8 m), 3″ (7.6 cm) venting up to 150 ft (45.7 m)\u003c\/li\u003e\n\u003cli\u003eAdvanced controls with intuitive interface and Setup Wizard\u003c\/li\u003e\n\u003cli\u003eBuilt-in powered connections for 3 zone valves or 3 zone pumps\u003c\/li\u003e\n\u003cli\u003eCommon venting for up to 8 units and cascading for up to 16\u003c\/li\u003e\n\u003cli\u003eApproved for high altitudes up to 10,100 ft (NG and LP)\u003c\/li\u003e\n\u003cli\u003eField convertible with included gas conversion kits\u003c\/li\u003e\n\u003cli\u003eNaviLink Wi-Fi compatible for remote control and monitoring (sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eResidential hydronic heating systems\u003c\/li\u003e\n\u003cli\u003eLight commercial buildings\u003c\/li\u003e\n\u003cli\u003eInstallations requiring scalable boiler banks\u003c\/li\u003e\n\u003cli\u003eHigh-efficiency replacements for aging systems\u003c\/li\u003e\n\u003cli\u003eMulti-zone systems with valves or pumps\u003c\/li\u003e\n\u003cli\u003eIndoor wall-hung boiler installations with flexible venting options\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eNFB-200H premium features and benefits\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e2″ (5.1 cm) venting up to 65′;\u003c\/strong\u003e\u003cbr\u003e3” up to 150’ (including schedule 40 PVC).\u003cstrong\u003eVent Installation Detector (VID)\u003c\/strong\u003efor added safety.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDual Venturi system\u003c\/strong\u003e creates better combustion control, turndown ratio and easy field gas conversions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePatented stainless steel fire tube heat exchanger\u003c\/strong\u003e Navien’s innovative heat exchanger design is ASME‐Certified,“H” Stamped, and reduces high-stress point weld failures common on other combi-boilers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLow gas pressure operation. \u003c\/strong\u003eNegative pressure regulating gas valveensures maximum performance all the way down to 3.5″ (8.9 cm) of water column on natural gas and 8″ (20 cm) of water column on propane gas.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced user interface with Setup\u003c\/strong\u003e Wizard is made easy with backlit panel, click-wheel control and intuitive text.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt-in control\u003c\/strong\u003e for a boiler pump, 3 zone pumps or 3 zone valves\u003c\/p\u003e\n\u003cp\u003e\n\n\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1\/2″ gas pipe capability up to 24′\u003c\/strong\u003e (subject to local codes). Cuts installation time, no need to install new gas lines for retrofit applications.\u003c\/p\u003e\n\u003cp\u003ePZNS642636\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":59048982970712,"sku":"BUS-0031","price":2230.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1006\/7027\/5928\/files\/navien_NFB-200H.jpg?v=1793899006","url":"https:\/\/elvax.shop\/products\/navien-nfb-200h-fire-tube-condensing-boiler-199000-btu-high-efficiency-heat-only-gas-boiler","provider":"Elvax","version":"1.0","type":"link"}