{"title":"Navien Comfort Flow","description":"","products":[{"product_id":"180-000-btu-condensing-premiumgas-tankless-water-heater","title":"NPE-210A2 - Condensing Tankless Water Heater - 180,000 BTU","description":"\u003ch4\u003eNavien NPE-210A2 - Condensing Tankless Water Heater - 180,000 BTU\u003c\/h4\u003e\n\u003cp data-start=\"98\" data-end=\"683\"\u003eThe Navien NPE-210A2 is a high-efficiency condensing tankless water heater engineered for both residential and commercial applications. With an input capacity of 12,000 to 180,000 BTU per hour and a Uniform Energy Factor of 0.95, it provides dependable hot water while maintaining low energy costs. The unit supports up to 10.1 gallons per minute at a 35°F rise, making it ideal for homes with multiple fixtures or businesses requiring steady hot water. Its compact, wall-hung design supports indoor or outdoor installation, and it is field convertible between natural gas and propane.\u003c\/p\u003e\n\u003cp data-start=\"685\" data-end=\"1194\"\u003eDesigned with Navien’s ultra condensing technology and dual stainless steel heat exchangers, the NPE-210A2 also includes built-in recirculation via ComfortFlow® technology, minimizing hot water wait times. The unit features an intuitive EZNav™ control panel with built-in HotButton™ functionality, cascading capability for up to 12 common-vented units, and ½\" gas line compatibility up to 24 feet. It’s compatible with NaviLink™ for remote control and can support space heating through the optional H2Air Kit.\u003c\/p\u003e\n\u003cp data-start=\"1196\" data-end=\"1812\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1196\" data-end=\"1812\"\u003e180,000 BTU\/h input with 0.95 UEF\u003c\/li\u003e\n\u003cli data-start=\"1196\" data-end=\"1812\"\u003eUp to 10.1 GPM at 35°F temperature rise\u003c\/li\u003e\n\u003cli data-start=\"1196\" data-end=\"1812\"\u003eDual stainless steel heat exchangers\u003c\/li\u003e\n\u003cli data-start=\"1196\" data-end=\"1812\"\u003eUltra condensing efficiency\u003c\/li\u003e\n\u003cli data-start=\"1196\" data-end=\"1812\"\u003eComfortFlow® recirculation with built-in buffer tank and pump\u003c\/li\u003e\n\u003cli data-start=\"1196\" data-end=\"1812\"\u003eEZNav™ multi-line control panel with HotButton™\u003c\/li\u003e\n\u003cli data-start=\"1196\" data-end=\"1812\"\u003eLow NOx emissions (20 ppm)\u003c\/li\u003e\n\u003cli data-start=\"1196\" data-end=\"1812\"\u003eField convertible gas system (NG\/LP)\u003c\/li\u003e\n\u003cli data-start=\"1196\" data-end=\"1812\"\u003eIndoor or outdoor wall-hung installation\u003c\/li\u003e\n\u003cli data-start=\"1196\" data-end=\"1812\"\u003e1\/2\" gas line capable up to 24 feet\u003c\/li\u003e\n\u003cli data-start=\"1196\" data-end=\"1812\"\u003eDirect venting: 2\" up to 75 feet, 3\" up to 150 feet\u003c\/li\u003e\n\u003cli data-start=\"1196\" data-end=\"1812\"\u003eCascading and common venting for up to 12 units\u003c\/li\u003e\n\u003cli data-start=\"1196\" data-end=\"1812\"\u003eCompatible with NaviLink™ remote control system\u003c\/li\u003e\n\u003cli data-start=\"1196\" data-end=\"1812\"\u003e3\/4\" NPT hot, cold, and gas connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1814\" data-end=\"2060\"\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1814\" data-end=\"2060\"\u003eResidential homes with high hot water demand\u003c\/li\u003e\n\u003cli data-start=\"1814\" data-end=\"2060\"\u003eLight commercial water heating\u003c\/li\u003e\n\u003cli data-start=\"1814\" data-end=\"2060\"\u003eMulti-bathroom households or small businesses\u003c\/li\u003e\n\u003cli data-start=\"1814\" data-end=\"2060\"\u003eInstallations needing gas and venting flexibility\u003c\/li\u003e\n\u003cli data-start=\"1814\" data-end=\"2060\"\u003eCascade-ready systems with optional space heating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eNavien NPE-A2 simply a \u003cspan style=\"color: #ff730f;\"\u003e\u003cstrong\u003esmarter\u003c\/strong\u003e \u003c\/span\u003ehot water system for today's \u003cspan style=\"color: #ff730f;\"\u003e\u003cstrong\u003elife styles\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff730f;\"\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=383627de-55d7-4777-a143-bd7f5510ea1f\" alt=\"Navien Lifestyles\" width=\"100%\"\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003ch2 style=\"text-align: center;\"\u003eNavien...the proven leader in condensing tankless, \u003cspan style=\"color: #ff730f;\"\u003e\u003cstrong\u003emakes it even easier to install and set up\u003c\/strong\u003e \u003cspan style=\"color: #000000;\"\u003ewith the new NPE-A2 series\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=ce93c22c-a97e-4e9c-b85d-206a4b103534\" alt=\"Navien NPE-A2 Series\" width=\"100%\"\u003e\u003c\/p\u003e\n\u003ctable style=\"height: 18px; width: 100%; border-collapse: collapse;\" border=\"0\" cellpadding=\"10\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 18px;\"\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=30fe77b3-4006-4c65-9b8b-1f78c38d59d6\" alt=\"ComfortFlow Built-in Recirculation System\" width=\"100%\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 18px;\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=0b06b33f-03af-4122-aa0c-f73b1d1a1c29\" alt=\"\" width=\"372\" height=\"69\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt-in recirculation system\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNavien’s patented ComfortFlow\u003csup\u003e®\u003c\/sup\u003e system is the first to include a buffer tank, recirculation pump and fine-tuned controls into a tankless water heater, resolving the cold-water sandwich effect* and issues of minimal flow rates commonly found in other tankless water heaters.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e* The “cold-water sandwich effect” is the undesired introduction of cold water into the hot water supply line on occasions of frequent on\/off operations. (Measure Guideline : Transitioning to a Tankless Water heater, DOE, Sept.2012).\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cblockquote\u003e\n\u003ch2 style=\"text-align: center;\"\u003e \u003c\/h2\u003e\n\u003ch2 style=\"text-align: center;\"\u003eThe built-in recirculation pump allows the NPE-A2 to recirculate water either through an external recirc line or through existing supply lines while using NaviCirc®, without the need for external pumps or controls.\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=35dce59a-aae7-4812-833a-740b528c52bf\" alt=\"Navien Recirculation Illustration\" width=\"100%\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ctable style=\"height: 18px; width: 100%; border-collapse: collapse;\" border=\"0\" cellpadding=\"10\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 18px;\"\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=30ff460d-8ed6-4bc6-bf03-0c0cdffeafb5\" alt=\"Navien EZNav Control\" width=\"100%\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 18px;\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=412639b4-effa-4002-89c4-b44ed7c2c562\" width=\"374\" height=\"99\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 14px;\"\u003eMulti-line control with built-in intuitive software \u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNavien’s new backlit EZNav™ control panel uses simple text and icons to make set up, operation status and troubleshooting faster and easier than ever before.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSelf-diagnostics.\u003c\/li\u003e\n\u003cli\u003eDisplays temperature and water flow rate.\u003c\/li\u003e\n\u003cli\u003eDisplays status of cascade operation.\u003c\/li\u003e\n\u003cli\u003eConvertible display from °F to °C.\u003c\/li\u003e\n\u003cli\u003eUser Friendly Interface.\u003c\/li\u003e\n\u003cli\u003eEasy setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003ePNAV000020\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":38067060146373,"sku":"NPE-210A2","price":1980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/npe-a2-coveron-nv.jpg?v=1753474982"},{"product_id":"navien-npe-240a2","title":"NPE-240A2 - Condensing Tankless Water Heater - 199,000 BTU","description":"\u003cp class=\"header__productTitle\"\u003e\u003cstrong\u003eNavien NPE-240A2 - Condensing Tankless Water Heater - 199,000 BTU\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"139\" data-end=\"662\"\u003eThe Navien NPE-240A2 is a high-capacity, high-efficiency condensing tankless water heater engineered for residential and light commercial applications. With an input range of 13,300 to 199,900 BTU per hour and a Uniform Energy Factor of 0.95, it delivers up to 11.2 gallons per minute at a 35°F temperature rise. Its compact, wall-hung design allows for flexible indoor or outdoor installation and supports 2\" or 3\" venting for long runs, making it ideal for homes or businesses requiring reliable and continuous hot water.\u003c\/p\u003e\n\u003cp data-start=\"664\" data-end=\"1234\"\u003eThis model features Navien’s patented ComfortFlow® system with a built-in recirculation pump and buffer tank to eliminate temperature fluctuations and minimize hot water wait time. Dual stainless steel heat exchangers enhance durability, while the EZNav™ control panel simplifies setup and operation. The NPE-240A2 supports cascading with up to 32 units and common venting with up to 12, and is field convertible for natural gas or propane use. With ultra-low NOx emissions and advanced safety features, it delivers efficient performance without sacrificing reliability.\u003c\/p\u003e\n\u003cp data-start=\"1236\" data-end=\"1862\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1236\" data-end=\"1862\"\u003e199,900 BTU\/h input with 0.95 UEF\u003c\/li\u003e\n\u003cli data-start=\"1236\" data-end=\"1862\"\u003eFlow rate: up to 11.2 GPM at 35°F rise\u003c\/li\u003e\n\u003cli data-start=\"1236\" data-end=\"1862\"\u003eDual stainless steel heat exchangers\u003c\/li\u003e\n\u003cli data-start=\"1236\" data-end=\"1862\"\u003eBuilt-in ComfortFlow® recirculation pump and buffer tank\u003c\/li\u003e\n\u003cli data-start=\"1236\" data-end=\"1862\"\u003eField convertible gas system (NG or LP, kit included)\u003c\/li\u003e\n\u003cli data-start=\"1236\" data-end=\"1862\"\u003eLow NOx emissions (20 ppm)\u003c\/li\u003e\n\u003cli data-start=\"1236\" data-end=\"1862\"\u003eIndoor or outdoor wall-hung installation\u003c\/li\u003e\n\u003cli data-start=\"1236\" data-end=\"1862\"\u003eEZNav™ multi-line control panel with built-in HotButton™\u003c\/li\u003e\n\u003cli data-start=\"1236\" data-end=\"1862\"\u003eCascading capable: up to 32 units\u003c\/li\u003e\n\u003cli data-start=\"1236\" data-end=\"1862\"\u003eCommon venting capable: up to 12 units\u003c\/li\u003e\n\u003cli data-start=\"1236\" data-end=\"1862\"\u003e1\/2\" gas line compatible up to 24 feet\u003c\/li\u003e\n\u003cli data-start=\"1236\" data-end=\"1862\"\u003e2\" venting up to 75 feet, 3\" venting up to 150 feet\u003c\/li\u003e\n\u003cli data-start=\"1236\" data-end=\"1862\"\u003e3\/4\" NPT gas and water connections\u003c\/li\u003e\n\u003cli data-start=\"1236\" data-end=\"1862\"\u003eElectronic ignition and VID safety feature\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1864\" data-end=\"2143\"\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1864\" data-end=\"2143\"\u003eResidential homes with high hot water demand\u003c\/li\u003e\n\u003cli data-start=\"1864\" data-end=\"2143\"\u003eLight commercial facilities needing continuous hot water\u003c\/li\u003e\n\u003cli data-start=\"1864\" data-end=\"2143\"\u003eRetrofits or upgrades to high-efficiency systems\u003c\/li\u003e\n\u003cli data-start=\"1864\" data-end=\"2143\"\u003eIndoor or outdoor wall-mounted installations\u003c\/li\u003e\n\u003cli data-start=\"1864\" data-end=\"2143\"\u003eCascade setups in multi-unit buildings or large households\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"header__productTitle\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eNavien NPE-A2 simply a \u003cspan style=\"color: #ff730f;\"\u003e\u003cstrong\u003esmarter\u003c\/strong\u003e \u003c\/span\u003ehot water system for today's \u003cspan style=\"color: #ff730f;\"\u003e\u003cstrong\u003elife styles\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff730f;\"\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=383627de-55d7-4777-a143-bd7f5510ea1f\" alt=\"Navien Lifestyles\" width=\"100%\"\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003ch2 style=\"text-align: center;\"\u003eNavien...the proven leader in condensing tankless, \u003cspan style=\"color: #ff730f;\"\u003e\u003cstrong\u003emakes it even easier to install and set up\u003c\/strong\u003e \u003cspan style=\"color: #000000;\"\u003ewith the new NPE-A2 series\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=ce93c22c-a97e-4e9c-b85d-206a4b103534\" alt=\"Navien NPE-A2 Series\" width=\"100%\"\u003e\u003c\/p\u003e\n\u003ctable style=\"height: 18px; width: 100%; border-collapse: collapse;\" border=\"0\" cellpadding=\"10\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 18px;\"\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=30fe77b3-4006-4c65-9b8b-1f78c38d59d6\" alt=\"ComfortFlow Built-in Recirculation System\" width=\"100%\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 18px;\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=0b06b33f-03af-4122-aa0c-f73b1d1a1c29\" alt=\"\" width=\"372\" height=\"69\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt-in recirculation system\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNavien’s patented ComfortFlow\u003csup\u003e®\u003c\/sup\u003e system is the first to include a buffer tank, recirculation pump and fine-tuned controls into a tankless water heater, resolving the cold-water sandwich effect* and issues of minimal flow rates commonly found in other tankless water heaters.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e* The “cold-water sandwich effect” is the undesired introduction of cold water into the hot water supply line on occasions of frequent on\/off operations. (Measure Guideline : Transitioning to a Tankless Water heater, DOE, Sept.2012).\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cblockquote\u003e\n\u003ch2 style=\"text-align: center;\"\u003e \u003c\/h2\u003e\n\u003ch2 style=\"text-align: center;\"\u003eThe built-in recirculation pump allows the NPE-A2 to recirculate water either through an external recirc line or through existing supply lines while using NaviCirc®, without the need for external pumps or controls.\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=35dce59a-aae7-4812-833a-740b528c52bf\" alt=\"Navien Recirculation Illustration\" width=\"100%\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ctable style=\"height: 18px; width: 100%; border-collapse: collapse;\" border=\"0\" cellpadding=\"10\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 18px;\"\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=30ff460d-8ed6-4bc6-bf03-0c0cdffeafb5\" alt=\"Navien EZNav Control\" width=\"100%\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 18px;\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=412639b4-effa-4002-89c4-b44ed7c2c562\" width=\"374\" height=\"99\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 14px;\"\u003eMulti-line control with built-in intuitive software \u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNavien’s new backlit EZNav™ control panel uses simple text and icons to make set up, operation status and troubleshooting faster and easier than ever before.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSelf-diagnostics.\u003c\/li\u003e\n\u003cli\u003eDisplays temperature and water flow rate.\u003c\/li\u003e\n\u003cli\u003eDisplays status of cascade operation.\u003c\/li\u003e\n\u003cli\u003eConvertible display from °F to °C.\u003c\/li\u003e\n\u003cli\u003eUser Friendly Interface.\u003c\/li\u003e\n\u003cli\u003eEasy setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003ePNAV000025\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":38067060441285,"sku":"NPE-240A2","price":2099.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/products\/npe-a2-coveron-nv.jpg?v=1753474979"},{"product_id":"npe-180a2-150-000-btu-indoor-outdoor-advanced-condensing-tankless-water-heater","title":"NPE-180A2 - Condensing Tankless Water Heater - 150,000 BTU","description":"\u003cp class=\"header__productTitle\"\u003e\u003cstrong\u003eNavien NPE-180A2 - Condensing Tankless Water Heater - 150,000 BTU\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"header__productDescription text-uppercase\"\u003e\n\u003cp data-start=\"0\" data-end=\"548\"\u003eThe Navien NPE-180A2 is a high-efficiency condensing tankless water heater designed for residential and light commercial use. With a capacity range of 10,000 to 150,000 BTU per hour and a Uniform Energy Factor of 0.95, it delivers powerful performance while minimizing energy waste. The unit provides a maximum flow rate of 8.4 GPM at a 35°F temperature rise, making it suitable for multiple simultaneous hot water demands. Compact and wall-hung, it installs easily indoors or outdoors and supports field conversion between natural gas and propane.\u003c\/p\u003e\n\u003cp data-start=\"550\" data-end=\"1149\"\u003eEquipped with Navien’s dual stainless steel heat exchangers and a built-in recirculation pump, the NPE-180A2 offers exceptional durability and faster hot water delivery. It features the EZNav™ multi-line control panel with integrated HotButton™ for user-friendly control, and it supports cascading and common venting with up to 12 units. Approved for 2\" or 3\" venting materials, it supports long vent runs and uses a 1\/2\" gas line up to 24 feet. With ultra-low NOx emissions and multiple built-in features, the NPE-180A2 meets a wide range of installation needs with high efficiency and flexibility.\u003c\/p\u003e\n\u003cp data-start=\"1151\" data-end=\"1642\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1151\" data-end=\"1642\"\u003e150,000 BTU\/h input with 0.95 UEF efficiency\u003c\/li\u003e\n\u003cli data-start=\"1151\" data-end=\"1642\"\u003eFlow rate up to 8.4 GPM at 35°F rise\u003c\/li\u003e\n\u003cli data-start=\"1151\" data-end=\"1642\"\u003eDual stainless steel heat exchangers\u003c\/li\u003e\n\u003cli data-start=\"1151\" data-end=\"1642\"\u003eBuilt-in recirculation pump\u003c\/li\u003e\n\u003cli data-start=\"1151\" data-end=\"1642\"\u003eField convertible between natural gas and propane\u003c\/li\u003e\n\u003cli data-start=\"1151\" data-end=\"1642\"\u003eUltra Low NOx emissions (20 ppm)\u003c\/li\u003e\n\u003cli data-start=\"1151\" data-end=\"1642\"\u003eEZNav™ multi-line control panel with HotButton™ interface\u003c\/li\u003e\n\u003cli data-start=\"1151\" data-end=\"1642\"\u003e1\/2\" gas line capable up to 24 feet\u003c\/li\u003e\n\u003cli data-start=\"1151\" data-end=\"1642\"\u003eIndoor or outdoor wall-hung installation\u003c\/li\u003e\n\u003cli data-start=\"1151\" data-end=\"1642\"\u003eVents with 2\" up to 75 ft or 3\" up to 150 ft\u003c\/li\u003e\n\u003cli data-start=\"1151\" data-end=\"1642\"\u003eCascading and common venting with up to 12 units\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1644\" data-end=\"1908\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1644\" data-end=\"1908\"\u003eResidential hot water systems\u003c\/li\u003e\n\u003cli data-start=\"1644\" data-end=\"1908\"\u003eLight commercial water heating\u003c\/li\u003e\n\u003cli data-start=\"1644\" data-end=\"1908\"\u003eInstallations requiring high flow at high efficiency\u003c\/li\u003e\n\u003cli data-start=\"1644\" data-end=\"1908\"\u003eProjects needing venting flexibility and compact design\u003c\/li\u003e\n\u003cli data-start=\"1644\" data-end=\"1908\"\u003eMulti-unit configurations with cascading or common venting requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"text-align: center;\"\u003eNavien NPE-A2 simply a \u003cspan style=\"color: #ff730f;\"\u003e\u003cstrong\u003esmarter\u003c\/strong\u003e \u003c\/span\u003ehot water system for today's \u003cspan style=\"color: #ff730f;\"\u003e\u003cstrong\u003elife styles\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff730f;\"\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=383627de-55d7-4777-a143-bd7f5510ea1f\" alt=\"Navien Lifestyles\" width=\"100%\"\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003ch2 style=\"text-align: center;\"\u003eNavien...the proven leader in condensing tankless, \u003cspan style=\"color: #ff730f;\"\u003e\u003cstrong\u003emakes it even easier to install and set up\u003c\/strong\u003e \u003cspan style=\"color: #000000;\"\u003ewith the new NPE-A2 series\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=ce93c22c-a97e-4e9c-b85d-206a4b103534\" alt=\"Navien NPE-A2 Series\" width=\"100%\"\u003e\u003c\/p\u003e\n\u003ctable style=\"height: 18px; width: 100%; border-collapse: collapse;\" border=\"0\" cellpadding=\"10\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 18px;\"\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=30fe77b3-4006-4c65-9b8b-1f78c38d59d6\" alt=\"ComfortFlow Built-in Recirculation System\" width=\"100%\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 18px;\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=0b06b33f-03af-4122-aa0c-f73b1d1a1c29\" alt=\"\" width=\"372\" height=\"69\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt-in recirculation system\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNavien’s patented ComfortFlow\u003csup\u003e®\u003c\/sup\u003e system is the first to include a buffer tank, recirculation pump and fine-tuned controls into a tankless water heater, resolving the cold-water sandwich effect* and issues of minimal flow rates commonly found in other tankless water heaters.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e* The “cold-water sandwich effect” is the undesired introduction of cold water into the hot water supply line on occasions of frequent on\/off operations. (Measure Guideline : Transitioning to a Tankless Water heater, DOE, Sept.2012).\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cblockquote\u003e\n\u003ch2 style=\"text-align: center;\"\u003e \u003c\/h2\u003e\n\u003ch2 style=\"text-align: center;\"\u003eThe built-in recirculation pump allows the NPE-A2 to recirculate water either through an external recirc line or through existing supply lines while using NaviCirc®, without the need for external pumps or controls.\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=35dce59a-aae7-4812-833a-740b528c52bf\" alt=\"Navien Recirculation Illustration\" width=\"100%\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ctable style=\"height: 18px; width: 100%; border-collapse: collapse;\" border=\"0\" cellpadding=\"10\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 18px;\"\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=30ff460d-8ed6-4bc6-bf03-0c0cdffeafb5\" alt=\"Navien EZNav Control\" width=\"100%\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 18px;\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/inventory.dearsystems.com\/ProductFamily\/DownloadImage?id=412639b4-effa-4002-89c4-b44ed7c2c562\" width=\"374\" height=\"99\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 14px;\"\u003eMulti-line control with built-in intuitive software \u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNavien’s new backlit EZNav™ control panel uses simple text and icons to make set up, operation status and troubleshooting faster and easier than ever before.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSelf-diagnostics.\u003c\/li\u003e\n\u003cli\u003eDisplays temperature and water flow rate.\u003c\/li\u003e\n\u003cli\u003eDisplays status of cascade operation.\u003c\/li\u003e\n\u003cli\u003eConvertible display from °F to °C.\u003c\/li\u003e\n\u003cli\u003eUser Friendly Interface.\u003c\/li\u003e\n\u003cli\u003eEasy setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003ePNAV000023\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":44572635693301,"sku":"NPE-180A2","price":1849.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/npe-a2-coveron-nv_e3a7ea7c-cca0-4983-bc28-c9252f8bb970.jpg?v=1753474954"},{"product_id":"30022965a-navicirc-recirculation-valve-for-npe-a2-series-tankless-water-heaters","title":"30022965A - NaviCirc Recirculation Valve - NPE-A Series","description":"\u003cp\u003e\u003cstrong\u003eNavien 30022965A - NaviCirc Recirculation Valve for NPE-A2 Series Tankless Water Heaters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNaviCirc is a simple plumbing device that uses the existing hot and cold water lines to reduce the wait time for hot water at the faucet without the need for a dedicated recirculation return line. Designed for recirculation of domestic hot water in applications where a dedicated return line is not available.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned and optimized for use with Navien NPE-A Series water heater models\u003c\/li\u003e\n\u003cli\u003eAutomatically blocks circulation when the hot water temperature within the valve is about 95 degrees F (35 degrees C)\u003c\/li\u003e\n\u003cli\u003eCompatible with the Navien HotButton Kit for demand-type recirculation systems\u003c\/li\u003e\n\u003cli\u003eNaviCirc Kit (30022965A) includes the NaviCirc recirculation valve (PFFW-SXX-001) and two 1\/2\" x 3\/8\" flexible hoses and adapters.\u003c\/li\u003e\n\u003cli\u003eThe NaviCirc recirculation valve works best if installed under the furthest accessible fixture away from the water heater. With the NPE-A2 unit’s built-in pump, water circulates through the NaviCirc to preheat the hot water lines, using the cold supply line as the return line back to the water heater.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eValve Only Part Number: PFFW-SXX-001\u003c\/li\u003e\n\u003cli\u003eNaviCirc Kit Part Number: 30022965A\u003c\/li\u003e\n\u003cli\u003eWater Flow Rate Range: 0.53 - 1.06 GPM  (2.0 - 4.0 LPM)\u003c\/li\u003e\n\u003cli\u003eCrossover Shutoff Temperature: 95 degrees F (35 degrees C)\u003c\/li\u003e\n\u003cli\u003eWater Temperature Range: 41 degrees F to 180 degrees F (5 degrees C to 82 degrees C)\u003c\/li\u003e\n\u003cli\u003eAmbient Temperature Range: 32 - 122 degrees F (0 - 50 degrees C)  (Indoor use only)\u003c\/li\u003e\n\u003cli\u003eStorage Temperature Range: 23 - 122 degrees F (-10 - 50 degrees C)\u003c\/li\u003e\n\u003cli\u003eMaximum Water Pressure: 150 psi\u003c\/li\u003e\n\u003cli\u003eConnection Size: 1\/2” NPS\u003c\/li\u003e\n\u003cli\u003eInstallation Operation: Horizontal Only\u003c\/li\u003e\n\u003cli\u003eDimensions (in): 5.62 x 3.93 x 2.19\u003c\/li\u003e\n\u003cli\u003eWeight (lb): 1.1 lb (0.5 kg)\u003c\/li\u003e\n\u003cli\u003eWarranty: 3 Years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003ePNAV000148\u003c\/span\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":44705689501941,"sku":"30022965A","price":79.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/navien_navicirc_1_wm.jpg?v=1753474951"},{"product_id":"navien-hotbutton-control-kit","title":"PZZZ-00063 - HotButton Add-on Control Kit for Navien NPE-A Series","description":"\u003cp\u003e\u003cstrong\u003eNavien PZZZ-00063 - HotButton Add-on Control Kit for Navien NPE-A Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Navien PZZZ-00063 is the HotButton Add-on Control Kit designed for use with Navien NPE-A series tankless water heaters. This kit enables on-demand recirculation, allowing users to activate the system's internal recirculation pump with the push of a button, ensuring hot water is available instantly at the tap.\u003c\/p\u003e\n\u003cp\u003eIdeal for retrofit or new installations, the HotButton system is easy to install using a 13-pin connector and includes one push button and a matching wall plate. Additional buttons can be added throughout the home for expanded convenience. Fully compliant with California Title 24 regulations, it’s a practical solution for increasing energy efficiency and user comfort.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe HotButton Control Kit includes the following items:\u003c\/li\u003e\n\u003cli\u003eNavien HotButton Add-on Controller\u003c\/li\u003e\n\u003cli\u003e13-pin Connector Cable for use with all NPE “A” models\u003c\/li\u003e\n\u003cli\u003eDoorbell-style push button (#GXXX001426) for pump activation\u003c\/li\u003e\n\u003cli\u003eWall plate (#GXXX001427 - WHITE) for push button\u003c\/li\u003e\n\u003cli\u003eStrap-on temperature sensor with 10’ wire\u003c\/li\u003e\n\u003cli\u003eWeight: 0.35 lbs\u003c\/li\u003e\n\u003cli\u003eDimensions: Controller – 3.5\" x 2.2\" x 0.5\"\u003c\/li\u003e\n\u003cli\u003eKit Box – Approx. 3.00\" x 4.00\" x 4.00\"\u003c\/li\u003e\n\u003cli\u003eCompatible with all Navien NPE-A series tankless water heaters, in both residential and cascade setups\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;\"\u003ePNAV000355\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":45165762511093,"sku":"PZZZ-00063","price":100.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/navien-pzzz-00046.jpg?v=1753474945"},{"product_id":"navien-hotbutton-extra-button","title":"GXXX001426 - HotButton Push Button for Navien NPE Series","description":"\u003cp\u003e\u003cstrong\u003eNavien GXXX001426 - HotButton Push Button for Navien NPE Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"169\" data-end=\"446\"\u003eThe Navien GXXX001426 is an on-demand push button switch designed for use with Navien NPE series tankless water heaters. This component allows users to initiate hot water recirculation at the push of a button, offering added convenience and energy efficiency.\u003c\/p\u003e\n\u003cp data-start=\"448\" data-end=\"734\"\u003eCompact and easy to install, the switch can be mounted in bathrooms, kitchens, or other remote locations to trigger the heater’s recirculation function. It pairs with compatible Navien HotButton systems and is built from corrosion-resistant materials to ensure long-lasting performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eButton only (GXXX001427 Wall plate sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong data-start=\"736\" data-end=\"753\"\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible with Navien NPE series tankless water heaters equipped for on-demand recirculation\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;\"\u003ePZNS439290\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":45165782925557,"sku":"GXXX001426","price":9.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/navien-gxxx001426_1.jpg?v=1753474943"},{"product_id":"gxxx001427-wall-plate-for-navien-hotbutton","title":"GXXX001427 - Wall Plate for Navien HotButton","description":"\u003cp\u003e\u003cstrong\u003eNavien GXXX001427 - Wall Plate for Navien HotButton\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAt the push of a button, the Navien HotButton activates the internal recirculation pump and gas fired burner to heat water in supply lines. This gives you hot water when you need it, saving water and money. Optional on-demand recirculation system for Navien NPE-A2 condensing tankless water heaters. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlate only (GXXX001426 button sold separately)\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;\"\u003ePZNS\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":45165803995381,"sku":"GXXX001427","price":5.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/navien_gxxx001427.jpg?v=1753474941"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/collections\/210x210_18.png?v=1754495512","url":"https:\/\/www.supplystop.com\/collections\/navien-comfort-flow\/100-150.oembed","provider":"SupplyStop.com","version":"1.0","type":"link"}