{"title":"NFB","description":null,"products":[{"product_id":"gas-valve-848-sigma-npe-old-30011586a","title":"30011586B - SIT 848 Sigma Gas Valve - Aluminum Alloy for NPE and NCB Series","description":"\u003cp\u003e\u003cstrong\u003eNavien 30011586B - SIT 848 Sigma Gas Valve - Aluminum Alloy for NPE and NCB Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Navien 30011586B is a SIT 848 Sigma Gas Valve designed for use in Navien tankless water heaters and combi-boilers. This OEM component regulates the flow of gas to the burner, maintaining proper combustion and efficient heating performance. Manufactured from durable aluminum alloy, the valve features an inline inlet and outlet with an additional side outlet to support secure installation and stable operation.\u003c\/p\u003e\n\u003cp data-start=\"630\" data-end=\"888\"\u003eThis part is compatible with a wide range of Navien units, including NPE, NCB, NCB-E, NHB, and NFB series systems. As a critical part of the gas control system, it helps ensure safe ignition and sustained burner performance under varied operating conditions.\u003c\/p\u003e\n\u003cp data-start=\"890\" data-end=\"1177\"\u003e\u003cstrong data-start=\"890\" data-end=\"909\"\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"890\" data-end=\"1177\"\u003eProduct Type: Gas valve\u003c\/li\u003e\n\u003cli data-start=\"890\" data-end=\"1177\"\u003eSeries: SIT 848 Sigma\u003c\/li\u003e\n\u003cli data-start=\"890\" data-end=\"1177\"\u003eMaterial: Aluminum alloy\u003c\/li\u003e\n\u003cli data-start=\"890\" data-end=\"1177\"\u003eDimensions: 4.72\" L x 3.94\" W x 3.54\" H\u003c\/li\u003e\n\u003cli data-start=\"890\" data-end=\"1177\"\u003eWeight: 1.5 lbs\u003c\/li\u003e\n\u003cli data-start=\"890\" data-end=\"1177\"\u003eManufacturer: Navien Inc.\u003c\/li\u003e\n\u003cli data-start=\"890\" data-end=\"1177\"\u003eCountry of Origin: Japan\u003c\/li\u003e\n\u003cli data-start=\"890\" data-end=\"1177\"\u003eInlet\/Outlet: Inline with additional side outlet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1179\" data-end=\"1299\"\u003e\u003cstrong data-start=\"1179\" data-end=\"1196\"\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1179\" data-end=\"1299\"\u003eCompatible with Navien NPE, NCB, NCB-E, NHB, and NFB series tankless water heaters and combi-boilers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003ePNAV000185\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":38067051495621,"sku":"30011586B","price":71.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/products\/30011586b.jpg?v=1753475001"},{"product_id":"navien-nfb-200h-199-000-btu-condensing-heating-boiler","title":"NFB-200H - Condensing Heating Boiler - 199,000 BTU","description":"\u003cp\u003e\u003cstrong\u003eNavien NFB-200H - Condensing Heating Boiler - 199,000 BTU\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"141\" data-end=\"756\"\u003eThe Navien NFB-200H is a high-efficiency condensing heating boiler designed for residential and light commercial applications. Rated at 95% AFUE and Energy Star certified, it delivers up to 199,900 BTU\/hr input with a DOE heating capacity of 183,000 BTU\/hr. 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 data-start=\"758\" data-end=\"1389\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"758\" data-end=\"1389\"\u003e95% AFUE – Energy Star certified\u003c\/li\u003e\n\u003cli data-start=\"758\" data-end=\"1389\"\u003e15:1 turndown ratio for efficient performance across variable loads\u003c\/li\u003e\n\u003cli data-start=\"758\" data-end=\"1389\"\u003ePatented stainless steel fire tube heat exchanger with non-metallic condensate base\u003c\/li\u003e\n\u003cli data-start=\"758\" data-end=\"1389\"\u003e2\" venting up to 65 ft, 3\" venting up to 150 ft\u003c\/li\u003e\n\u003cli data-start=\"758\" data-end=\"1389\"\u003eAdvanced controls with intuitive interface and Setup Wizard\u003c\/li\u003e\n\u003cli data-start=\"758\" data-end=\"1389\"\u003eBuilt-in powered connections for 3 zone valves or 3 zone pumps\u003c\/li\u003e\n\u003cli data-start=\"758\" data-end=\"1389\"\u003eCommon venting for up to 8 units and cascading for up to 16\u003c\/li\u003e\n\u003cli data-start=\"758\" data-end=\"1389\"\u003eApproved for high altitudes up to 10,100 ft (NG and LP)\u003c\/li\u003e\n\u003cli data-start=\"758\" data-end=\"1389\"\u003eField convertible with included gas conversion kits\u003c\/li\u003e\n\u003cli data-start=\"758\" data-end=\"1389\"\u003eNaviLink Wi-Fi compatible for remote control and monitoring (sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1391\" data-end=\"1681\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1391\" data-end=\"1681\"\u003eResidential hydronic heating systems\u003c\/li\u003e\n\u003cli data-start=\"1391\" data-end=\"1681\"\u003eLight commercial buildings\u003c\/li\u003e\n\u003cli data-start=\"1391\" data-end=\"1681\"\u003eInstallations requiring scalable boiler banks\u003c\/li\u003e\n\u003cli data-start=\"1391\" data-end=\"1681\"\u003eHigh-efficiency replacements for aging systems\u003c\/li\u003e\n\u003cli data-start=\"1391\" data-end=\"1681\"\u003eMulti-zone systems with valves or pumps\u003c\/li\u003e\n\u003cli data-start=\"1391\" data-end=\"1681\"\u003eIndoor wall-hung boiler installations with flexible venting options\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"product__sectionTitle\"\u003eNFB-200H premium features and benefits\u003c\/h2\u003e\n\u003cdiv class=\"row row--gutter- align-items-center justify-content-start\" data-alchemy-element=\"43909\"\u003e\n\u003cdiv class=\"col-12 col-md-3  justify-content-start align-self-start   text-center\" data-alchemy-element=\"43912\"\u003e\n\u003cdiv class=\"div_view\" data-alchemy-element=\"43913\"\u003e\n\u003cimg class=\"float- \" src=\"https:\/\/navien-production-3.s3-us-west-2.amazonaws.com\/pictures\/1871\/368140f5ac36a04bc89174f5a942a91750df3b3e\/A.png\" data-alchemy-element=\"43914\"\u003e\u003chr\u003e\n\u003cdiv id=\"rich_text_section_43916\" class=\"section__text section__text--small \"\u003e\n\u003cp\u003e\u003cstrong\u003e2\" 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\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"div_view\" data-alchemy-element=\"43917\"\u003e\n\u003cimg class=\"float- \" src=\"https:\/\/navien-production-3.s3-us-west-2.amazonaws.com\/pictures\/1880\/ba09272692fb9dd4ef933fbfb8408344effe763e\/B.png\" data-alchemy-element=\"43918\"\u003e\u003chr\u003e\n\u003cdiv id=\"rich_text_section_43920\" class=\"section__text section__text--small \"\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\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"div_view\" data-alchemy-element=\"43921\"\u003e\n\u003cimg class=\"float- \" src=\"https:\/\/navien-production-3.s3-us-west-2.amazonaws.com\/pictures\/1873\/790887f501c5031b5a5f7a681de206ce502500ec\/Heat_Exchanger.png\" data-alchemy-element=\"43922\"\u003e\u003chr\u003e\n\u003cdiv id=\"rich_text_section_43924\" class=\"section__text section__text--small \"\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\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-md-6  justify-content-start align-self-center d-none d-sm-block  text-center\" data-alchemy-element=\"43925\"\u003e\n\u003cimg class=\"float- \" src=\"https:\/\/navien-production-3.s3-us-west-2.amazonaws.com\/2022\/04\/27\/22\/13\/49\/213beff1-ea5a-46cf-872d-e6e1cc517a9b\/NFB-H.png\" data-alchemy-element=\"43926\"\u003e\n\u003cdiv class=\"row row--gutter- align-items-start justify-content-center\" data-alchemy-element=\"43927\"\u003e\n\u003cdiv class=\"col-12 col-md-6  justify-content-start align-self-   text-center\" data-alchemy-element=\"43928\"\u003e\n\u003cimg class=\"float- \" src=\"https:\/\/navien-production-3.s3-us-west-2.amazonaws.com\/pictures\/1876\/e0a8da45f7ec9afbdc50b9fc822e0069007c81bc\/Low_gas_pressure_operation.png\" data-alchemy-element=\"43929\"\u003e\u003chr\u003e\n\u003cdiv id=\"rich_text_section_43931\" class=\"section__text section__text--small \"\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\" of water column on natural gas and 8\" of water column on propane gas.\u003c\/p\u003e\n\u003cdiv class=\"div_view\" data-alchemy-element=\"43937\"\u003e\n\u003cimg class=\"float- \" src=\"https:\/\/navien-production-3.s3-us-west-2.amazonaws.com\/pictures\/1874\/6543e1a843a68ee52421481e8dc5d9fac17b1a29\/Control2.png\" data-alchemy-element=\"43938\"\u003e\u003chr\u003e\n\u003cdiv id=\"rich_text_section_43940\" class=\"section__text section__text--small \"\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\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"div_view\" data-alchemy-element=\"43941\"\u003e\n\u003cimg class=\"float- \" src=\"https:\/\/navien-production-3.s3-us-west-2.amazonaws.com\/pictures\/1878\/49c5999d447880f5348e00337cf5bfdf43073a94\/CircuitBoard2.png\" data-alchemy-element=\"43942\"\u003e\u003chr\u003e\n\u003cdiv id=\"rich_text_section_43944\" class=\"section__text section__text--small \"\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\u003cdiv id=\"gtx-trans\"\u003e\n\u003cdiv class=\"gtx-trans-icon\"\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"div_view\" data-alchemy-element=\"43945\"\u003e\u003cimg class=\"float- \" src=\"https:\/\/navien-production-3.s3-us-west-2.amazonaws.com\/pictures\/1879\/c9abaace9463ac46174d3337e0e10ae791c62b18\/Tube2.png\" data-alchemy-element=\"43946\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"div_view\" data-alchemy-element=\"43945\"\u003e\u003cimg class=\"quickfacts__diagramImage\" src=\"https:\/\/www.navieninc.com\/app\/W1siZiIsIjIwMjEvMDEvMjYvMDEvNDcvNTgvYmVmMzI2MjAtOTIzZi00YjczLTk5NGUtZmJkNzY4NmI3MDFmL05GQi1ILWRpbWVuc2lvbnMtYnVsbGV0cy5wbmciXV0?sha=2f86c46635b8c224\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"div_view\" data-alchemy-element=\"43945\"\u003e\n\u003cdiv class=\"col-md-4 col-sm-12 text-sm-center\"\u003e\u003cimg class=\"quickfacts__diagramImage\" src=\"https:\/\/www.navieninc.com\/app\/W1siZiIsIjIwMjEvMDEvMjYvMDEvNDcvNTcvMzg2YWZkMTQtMmViMy00MWNhLWEzMzEtZjcxMDBmNjdiNjUzL05GQi1ILWRpbWVuc2lvbnMtdG9wLnBuZyJdXQ?sha=03b0d6132acc8efc\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-md-4 col-sm-12 text-sm-center\"\u003e\u003cimg class=\"quickfacts__diagramImage\" src=\"https:\/\/www.navieninc.com\/app\/W1siZiIsIjIwMjEvMDEvMjYvMDEvNDcvNTgvY2ZkZGRmM2YtZDQzZS00YTk4LWJlYzQtNWI3Mjg4ZTQ5ODcxL05GQi1ILWRpbWVuc2lvbnMtYm90dG9tLnBuZyJdXQ?sha=11a64d9c727444ed\"\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv id=\"rich_text_section_43948\" class=\"section__text section__text--small \"\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\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003ePZNS642636\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":43320977522933,"sku":"NFB-200H","price":3999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/products\/navien_NFB-200H.jpg?v=1753474967"},{"product_id":"navilink-wi-fi-control-for-npe-ncb-and-nhb-series","title":"PBCM-AS-001 - NaviLink Wi-Fi Control Module","description":"\u003cp\u003e\u003cstrong\u003eNavien PBCM-AS-001 - NaviLink Wi-Fi Control Module\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"197\" data-end=\"589\"\u003eThe Navien PBCM-AS-001 is a NaviLink™ Wi-Fi control module that gives homeowners remote access to their Navien tankless water heaters and combi-boilers. Using the NaviLink app on a smartphone or tablet, users can adjust domestic hot water temperature, monitor system status, activate recirculation (on supported models like the NPE-A2), and receive diagnostic notifications.\u003c\/p\u003e\n\u003cp data-start=\"591\" data-end=\"910\"\u003eDesigned for both single-unit and cascade system control, this module supports up to eight units per channel. With energy usage tracking, HotButton activation, and full remote control capabilities, the NaviLink module adds convenience, efficiency, and visibility to residential or light commercial Navien installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTurn unit on and off\u003c\/li\u003e\n\u003cli\u003eChange DHW temperature\u003c\/li\u003e\n\u003cli\u003eMonitor system status\u003c\/li\u003e\n\u003cli\u003eActivate recirculation on NPE-A2 with HotButton\u003c\/li\u003e\n\u003cli\u003eSchedule recirculation by hour or by day\u003c\/li\u003e\n\u003cli\u003eAdd multiple users\u003c\/li\u003e\n\u003cli\u003eAllow installer access\/account\u003c\/li\u003e\n\u003cli\u003eMultiple NaviLinks per account\u003c\/li\u003e\n\u003cli\u003ePush notifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong data-start=\"912\" data-end=\"929\"\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible with Navien NPE, NCB, NFC, NFB, and NHB series tankless water heaters and combi-boilers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003ePNAV000255\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":43798913351925,"sku":"PBCM-AS-001","price":219.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/navien_navilink_2_wm_3c48c881-b41a-40aa-8ef8-cf2378fc4fe9.jpg?v=1753474960"},{"product_id":"gffm-kdizus-005-ready-link-rack-v3-base","title":"GFFM-KDIZUS-005 - Ready-Link Rack V3 Base","description":"\u003cp\u003e\u003cstrong\u003eNavien GFFM-KDIZUS-005 - Ready-Link Rack V3 Base\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003ePZNS643859\u003c\/span\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":45108235370741,"sku":"GFFM-KDIZUS-005","price":428.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/navien_gffm-kdizus-005.jpg?v=1753474949"},{"product_id":"navi-link-lite-wi-fi-system","title":"PBCMAS002 - NaviLink Lite Wi-Fi Control System","description":"\u003cp\u003e\u003cstrong\u003eNavien PBCMAS002 NaviLink Lite Wi-Fi Control System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"204\" data-end=\"639\"\u003eThe Navien PBCM-AS-002 is the NaviLink Lite Wi-Fi control module, an easy-to-install accessory for Navien tankless water heaters. This compact system allows users to control a single unit remotely through the NaviLink app on a smartphone or tablet. It enables temperature adjustments, usage tracking, error notifications, and activation of the HotButton feature for on-demand recirculation (if supported by the unit).\u003c\/p\u003e\n\u003cp data-start=\"641\" data-end=\"933\"\u003eNaviLink Lite mounts magnetically to the water heater or can be wall-mounted and requires no external power — drawing electricity directly from the Navien unit. It's ideal for residential installations looking to add smart control without the complexity of a full cascade or multi-unit setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTurn unit on and off\u003c\/li\u003e\n\u003cli\u003eChange DHW temperature\u003c\/li\u003e\n\u003cli\u003eMonitor system status\u003c\/li\u003e\n\u003cli\u003eActivate recirculation on NPE-A2 with HotButton\u003c\/li\u003e\n\u003cli\u003eSchedule recirculation by hour or by day\u003c\/li\u003e\n\u003cli\u003eAdd multiple users\u003c\/li\u003e\n\u003cli\u003eAllow installer access\/account\u003c\/li\u003e\n\u003cli\u003eMultiple NaviLinks per account\u003c\/li\u003e\n\u003cli\u003ePush notifications\u003c\/li\u003e\n\u003cli\u003eWi-Fi connectivity only\u003c\/li\u003e\n\u003cli\u003eWorks for single unit\u003c\/li\u003e\n\u003cli\u003eResidential Use\u003c\/li\u003e\n\u003cli\u003eEasy installation\u003c\/li\u003e\n\u003cli\u003eNo external power required\u003c\/li\u003e\n\u003cli\u003ePowered by connection to unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong data-start=\"935\" data-end=\"952\"\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible with select Navien tankless water heaters (single-unit control only)\u003c\/li\u003e\n\u003cli\u003eDesigned for current Navien products, not compatible with legacy models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003ePNAV000257\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":45165734592757,"sku":"PBCMAS002","price":159.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/1f116534-3634-46e8-84ff-409b6eb2bab2.jpg?v=1753474946"},{"product_id":"gffm-msozus-002-nfb-primary-manifold-kit","title":"GFFM-MSOZUS-002 - Primary Manifold Kit - NFB Series","description":"\u003cp\u003e\u003cstrong\u003eNavien GFFM-MSOZUS-002 - NFB Primary Manifold Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"accessories__description\"\u003e \u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003ePNAV000151\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":45394891473141,"sku":"GFFM-MSOZUS-002","price":529.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/navien_nfb-maniofold-kit.jpg?v=1753474926"},{"product_id":"nfb-399c-399-000-btu-condensing-heating-boiler","title":"NFB-399C - Condensing Heating Boiler - 399,000 BTU","description":"\u003cp\u003e\u003cstrong\u003eNavien NFB-399C - 399,000 BTU Condensing Heating Boiler\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"133\" data-end=\"669\"\u003eThe Navien NFB-399C is a commercial-grade condensing boiler engineered for maximum efficiency and performance. With an impressive 97.5% thermal efficiency and a 15:1 turndown ratio, it delivers reliable operation across a wide range of heating demands. This model features a patented stainless steel fire tube heat exchanger, an intuitive 7\" touchscreen control interface, and flexible venting options. It's approved for high-altitude installations and is compatible with building automation systems through BACnet, Modbus, or LonWorks.\u003c\/p\u003e\n\u003cp data-start=\"671\" data-end=\"1112\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"671\" data-end=\"1112\"\u003e97.5% thermal efficiency\u003c\/li\u003e\n\u003cli data-start=\"671\" data-end=\"1112\"\u003e15:1 turndown ratio\u003c\/li\u003e\n\u003cli data-start=\"671\" data-end=\"1112\"\u003eStainless steel fire tube heat exchanger\u003c\/li\u003e\n\u003cli data-start=\"671\" data-end=\"1112\"\u003e7\" color touchscreen interface\u003c\/li\u003e\n\u003cli data-start=\"671\" data-end=\"1112\"\u003ePVC, CPVC, polypropylene, and stainless venting options\u003c\/li\u003e\n\u003cli data-start=\"671\" data-end=\"1112\"\u003eCommon venting up to 4 units, cascading up to 32\u003c\/li\u003e\n\u003cli data-start=\"671\" data-end=\"1112\"\u003eBuilt-in pump relays for 3-zone systems\u003c\/li\u003e\n\u003cli data-start=\"671\" data-end=\"1112\"\u003eTop and bottom piping connections\u003c\/li\u003e\n\u003cli data-start=\"671\" data-end=\"1112\"\u003eLow NOx emissions\u003c\/li\u003e\n\u003cli data-start=\"671\" data-end=\"1112\"\u003eApproved for altitudes up to 10,100 ft\u003c\/li\u003e\n\u003cli data-start=\"671\" data-end=\"1112\"\u003eCompatible with BAS protocols (Modbus, BACnet, LonWorks)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1114\" data-end=\"1394\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1114\" data-end=\"1394\"\u003eCommercial buildings with high heating demands\u003c\/li\u003e\n\u003cli data-start=\"1114\" data-end=\"1394\"\u003eBoiler banks requiring cascading and common venting\u003c\/li\u003e\n\u003cli data-start=\"1114\" data-end=\"1394\"\u003eEnergy-efficient system upgrades\u003c\/li\u003e\n\u003cli data-start=\"1114\" data-end=\"1394\"\u003eInstallations requiring top or bottom piping flexibility\u003c\/li\u003e\n\u003cli data-start=\"1114\" data-end=\"1394\"\u003eMulti-zone hydronic systems\u003c\/li\u003e\n\u003cli data-start=\"1114\" data-end=\"1394\"\u003eHigh-altitude commercial environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003eZCS\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":46198046228725,"sku":"NFB-399C","price":9528.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/navien_nfb-399c.jpg?v=1753474911"},{"product_id":"20006948a-o-ring-epdm-15-8-x-2-7-mm","title":"20006948A - O-Ring - EPDM, 15.8 x 2.7 mm","description":"\u003cp\u003e\u003cstrong\u003eNavien 20006948A - O-Ring - EPDM, 15.8 x 2.7 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"529\" data-start=\"124\"\u003eThe Navien 20006948A is a large-diameter EPDM O-ring engineered for sealing applications across multiple Navien water heater and boiler models. With a 15.8-inch diameter and 2.7-millimeter thickness, this genuine OEM part provides a secure, leak-resistant seal in high-performance systems. It is specifically designed to meet the fit and durability standards required for Navien’s condensing gas products.\u003c\/p\u003e\n\u003cp data-end=\"812\" data-start=\"531\"\u003eMade from EPDM rubber, the 20006948A offers excellent resistance to heat, pressure, and chemical exposure. It’s compatible with units from the NHB, NCB, CC\/CR, CH\/CH-ASME, NPE, and NR\/NP series, making it a trusted choice for both residential and commercial maintenance or repairs.\u003c\/p\u003e\n\u003cp data-end=\"1029\" data-start=\"814\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1029\" data-start=\"814\"\u003e15.8\" diameter O-ring with 2.7 mm thickness\u003c\/li\u003e\n\u003cli data-end=\"1029\" data-start=\"814\"\u003eMade of durable, heat- and chemical-resistant EPDM rubber\u003c\/li\u003e\n\u003cli data-end=\"1029\" data-start=\"814\"\u003eGenuine Navien OEM replacement part\u003c\/li\u003e\n\u003cli data-end=\"1029\" data-start=\"814\"\u003eEnsures tight sealing and leak prevention\u003c\/li\u003e\n\u003cli data-end=\"1029\" data-start=\"814\"\u003eBlack in color\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1298\" data-start=\"1031\"\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1298\" data-start=\"1031\"\u003eNavien NHB-55 condensing gas boilers\u003c\/li\u003e\n\u003cli data-end=\"1298\" data-start=\"1031\"\u003eNCB, CC\/CR, CH\/CH-ASME condensing gas combination boilers\u003c\/li\u003e\n\u003cli data-end=\"1298\" data-start=\"1031\"\u003eNPE, NR\/NP tankless water heaters\u003c\/li\u003e\n\u003cli data-end=\"1298\" data-start=\"1031\"\u003eUse in high-temperature, high-pressure sealing locations\u003c\/li\u003e\n\u003cli data-end=\"1298\" data-start=\"1031\"\u003eIdeal for servicing or replacing original Navien O-rings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003ePNAV000060\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":46875379564789,"sku":"20006948A","price":2.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/c3a3d92d-7bd1-4346-9a70-36cb303fd50d.png?v=1753730857"}],"url":"https:\/\/www.supplystop.com\/collections\/series-nfb\/series-nhb.oembed","provider":"SupplyStop.com","version":"1.0","type":"link"}