{"product_id":"navien-nfb-c-series-399k-btu-high-efficiency-condensing-heating-boiler","title":"Navien NFB-399C Condensing Heating Boiler","description":"\u003cp\u003eThe Navien NFB-399C is an indoor condensing boiler for hydronic space heating. It is a heating boiler, not a combi-boiler with integrated domestic hot water.\u003c\/p\u003e\u003ch3\u003eProduct details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMaximum input: 399,000 BTU\/h.\u003c\/li\u003e\n\u003cli\u003eThermal efficiency: 97.5%; this is not an AFUE rating.\u003c\/li\u003e\n\u003cli\u003eStainless steel fire tube heat exchanger.\u003c\/li\u003e\n\u003cli\u003eIndoor wall-hung installation.\u003c\/li\u003e\n\u003cli\u003eProfessional system sizing, gas setup, venting and water treatment are required.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore ordering\u003c\/h3\u003e\u003cp\u003eGas appliances must be installed by a licensed professional in accordance with the manufacturer’s instructions and applicable local codes. Before ordering, confirm the correct fuel type, natural gas or propane, and ensure your site meets the venting, gas-supply sizing, and installation requirements.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.navieninc.com\/products\/nfb-399c\"\u003eManufacturer product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eLuverlo Warranty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eLuverlo warranty notice:\u003c\/strong\u003e Luverlo provides buyers with a full two-year warranty from delivery on products purchased through our online store. Luverlo pays for parts, labor and shipping for covered defects. \u003ca href=\"\/pages\/warranty-amp-replacement-information\"\u003eRead the full warranty terms and claim procedures\u003c\/a\u003e.\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":67968454295734,"sku":"NFB-399C","price":2500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/0429\/4582\/files\/h_8b0f82b-1.jpg?v=1793414603","url":"https:\/\/luverlo.shop\/products\/navien-nfb-c-series-399k-btu-high-efficiency-condensing-heating-boiler","provider":"Luverlo","version":"1.0","type":"link"}