{"title":"Navien Combi Boilers","description":"\u003cp\u003eA Navien combi boiler heats the home and makes domestic hot water on demand from one wall-hung condensing appliance, so there is no separate water heater or indirect tank. We stock two series. The \u003cstrong\u003eNCB-H\u003c\/strong\u003e (NCB-240\/110H and NCB-240\/130H) pairs 110,000 or 130,000 BTU\/h of heating input with 199,900 BTU\/h for hot water. The larger \u003cstrong\u003eNFC-H\u003c\/strong\u003e (NFC-250\/175H and NFC-250\/200H) offers 175,000 or 199,900 BTU\/h of heating with 210,000 BTU\/h for hot water.\u003c\/p\u003e\n\u003ch2\u003eHow to choose a Navien combi\u003c\/h2\u003e\n\u003cp\u003eSize it by two numbers. The heating input should cover the building's calculated heat loss, and the hot water side has to keep up with the fixtures that run at the same time. A combi that heats the house well can still be short for two showers at once, so check the hot water flow at your temperature rise. Plan for PVC, CPVC or polypropylene venting, a condensate drain with a neutralizer, and a gas line sized for the full input.\u003c\/p\u003e\n\u003cp\u003eCompare every model side by side in the \u003ca href=\"\/pages\/navien-model-comparison\"\u003eNavien model comparison\u003c\/a\u003e. See also \u003ca href=\"\/collections\/navien-boilers\"\u003eall Navien boilers\u003c\/a\u003e, including heating-only NHB and NFB models, \u003ca href=\"\/collections\/combination-heating-dhw-boilers\"\u003ecombi boilers from other brands\u003c\/a\u003e, \u003ca href=\"\/collections\/condensate-neutralizers\"\u003econdensate neutralizers\u003c\/a\u003e and \u003ca href=\"\/collections\/navien-parts\"\u003eNavien parts and vent kits\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"navien-high-efficiency-condensing-combi-boiler-max-htg-input-110-000-btu-h-max-dhw-input-199-900-btu-h-indoor-wall-hung-residential-ncb-240-110h-navi-ncb-240-110h-ral","title":"Navien NCB-240\/110H High Efficiency Condensing Combi-Boiler, 110,000 BTU Heating \/ 199,900 BTU DHW, Indoor Wall-Hung, NG\/LP Convertible","description":"\u003cp\u003eThe Navien High Efficiency Condensing Combi-Boiler Max Htg Input: 110,000 BTU\/h, Max DHW Input: 199,900 BTU\/h, Indoor Wall-Hung Residential NCB-240\/110H by Navien is part of our combination heating \u0026amp; dhw boilers selection.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Navien\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e NCB-240\/110H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Combination Heating \u0026amp; DHW Boilers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight:\u003c\/strong\u003e 84 lb\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":44351188369511,"sku":"NAVI-NCB-240\/110H-RAL","price":4027.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0651\/2253\/3479\/files\/image_al3dgn_06c4faf0-4abe-4d3a-94f0-520fd01c5aa9.jpg?v=1785814057"},{"product_id":"navien-high-efficiency-condensing-combi-boiler-max-htg-input-175-000-btu-h-max-dhw-input-210-000-btu-h-indoor-wall-hung-residential-commercial-nfc-250-175h","title":"Navien NFC-250\/175H High Efficiency Condensing Combi-Boiler, 175,000 BTU Heating \/ 210,000 BTU DHW, Indoor Wall-Hung, NG\/LP Convertible","description":"\u003cp\u003eThe Navien NFC-250\/175H High Efficiency Condensing Combi-Boiler, 175,000 BTU Heating \/ 210,000 BTU DHW, Indoor Wall-Hung, NG\/LP Convertible NFC-250\/175H by Navien is part of our combination heating \u0026amp; dhw boilers selection.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Navien\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e NFC-250\/175H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 884954919195\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Combination Heating \u0026amp; DHW Boilers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":44351188533351,"sku":"NAVI-NFC-250\/175H","price":4725.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0651\/2253\/3479\/files\/Screen_Shot_2023-02-15_at_12.13.32_PM_itkz5g_2d90fd77-1d3e-49c6-a0db-b77c4facb955.jpg?v=1788486175"},{"product_id":"navien-high-efficiency-condensing-combi-boiler-max-htg-input-199-900-btu-h-max-dhw-input-210-000-btu-h-indoor-wall-hung-residential-commercial-nfc-250-200h","title":"Navien NFC-250\/200H High Efficiency Condensing Combi-Boiler, 199,900 BTU Heating \/ 210,000 BTU DHW, Indoor Wall-Hung, NG\/LP Convertible","description":"\u003cp\u003eThe Navien NFC-250\/200H High Efficiency Condensing Combi-Boiler, 199,900 BTU Heating \/ 210,000 BTU DHW, Indoor Wall-Hung, NG\/LP Convertible NFC-250\/200H by Navien is part of our combination heating \u0026amp; dhw boilers selection.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Navien\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e NFC-250\/200H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 884954919201\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Combination Heating \u0026amp; DHW Boilers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":44351188566119,"sku":"NAVI-NFC-250\/200H","price":4957.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0651\/2253\/3479\/files\/image_ti8sos_09f8b247-3251-4b02-be35-fb436de83445.jpg?v=1785814065"},{"product_id":"navien-ncb-240-130h-high-efficiency-condensing-combi-boiler-max-htg-input-130-000-btu-h-max-dhw-input-199-900-btu-h-indoor-wall-hung","title":"Navien NCB-240\/130H High Efficiency Condensing Combi-Boiler - Max Htg Input: 130,000 BTU\/h, Max DHW Input: 199,900 BTU\/h, Indoor Wall-Hung","description":"\u003cp\u003eNavien NCB-240\/130H is a high-efficiency condensing combi-boiler that provides space heating and domestic hot water from one indoor wall-hung unit.\u003c\/p\u003e\u003cp\u003eThe unit has a maximum heating input of 130,000 BTU\/h and a maximum domestic hot water input of 199,900 BTU\/h, with a listed hot water flow of 5.1 GPM at a 70 degree F rise. It has a stainless steel heat exchanger, a built-in boiler pump, and powered connections for three zone pumps and three zone valves.\u003c\/p\u003e\u003cp\u003eSize the unit from your heat load and hot water demand, and confirm gas type, vent size (2 in. or 3 in.), the 3\/4 in. gas inlet, the 3\/4 in. MIP domestic connections and the 120 volt power supply before ordering. The brochures in the documents below give more detail.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Navien\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e NCB-240\/130H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAFUE:\u003c\/strong\u003e 95\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Indoor potable and hydronic heating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Natural Gas or Propane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBTU Input Maximum Heating:\u003c\/strong\u003e 130,000 Btu\/h\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBTU Input Minimum Heating:\u003c\/strong\u003e 13,000 Btu\/hr\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBTU Input Domestic Maximum:\u003c\/strong\u003e 199,900 Btu\/hr\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot Water Flow:\u003c\/strong\u003e 5.1 GPM @ 70 Degree Rise F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDHW Temperature Range:\u003c\/strong\u003e 86-140 Degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Inlet:\u003c\/strong\u003e 3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold \u0026amp; Hot Connections Domestic:\u003c\/strong\u003e 3\/4\" MIP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating System Inlet:\u003c\/strong\u003e 1\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating System Outlet:\u003c\/strong\u003e 1\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVent Type:\u003c\/strong\u003e Direct or power vent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVent Size:\u003c\/strong\u003e 2\" or 3\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVent Material:\u003c\/strong\u003e Polypropylene \/ PVC \/ CPVC \/ SS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Indoor Wall Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoiler Pump Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePriority Zone Control:\u003c\/strong\u003e Built-in 3 zone pumps and 3 zone valves powered connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Exchanger Type:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolts:\u003c\/strong\u003e 120 Volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 29.3\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 17.3\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth:\u003c\/strong\u003e 12.8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 96 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 10 year heat exchanger\/ 5 year parts\/ 1 year labor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Combination Heating \u0026amp; DHW Boilers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDocuments\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/res.cloudinary.com\/dzhpkjoqj\/Navien\/Navien_NCBH_Brochure_2204_wketiz.pdf\" target=\"_blank\" rel=\"noopener\"\u003eBrochure\u003c\/a\u003e (PDF)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/res.cloudinary.com\/dzhpkjoqj\/Navien\/Navien_Builder_Brochure_2106_pq9gri.pdf\" target=\"_blank\" rel=\"noopener\"\u003eBuilder Brochure\u003c\/a\u003e (PDF)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/res.cloudinary.com\/dzhpkjoqj\/Navien\/Combi_Consumer_Brochure_2204_eewgt4.pdf\" target=\"_blank\" rel=\"noopener\"\u003eCombi Brochure\u003c\/a\u003e (PDF)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/res.cloudinary.com\/dzhpkjoqj\/Navien\/NCB-H_Heat_Exchanger_Guide_En_201111_a_tuo6nb.pdf\" target=\"_blank\" rel=\"noopener\"\u003eHeat Exchanger Information\u003c\/a\u003e (PDF)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSee also: \u003ca href=\"\/collections\/combination-heating-dhw-boilers\"\u003ecombination heating and DHW boilers\u003c\/a\u003e, \u003ca href=\"\/collections\/navien\"\u003eall Navien products\u003c\/a\u003e.\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":50357569552487,"sku":"NAVI-NCB-240\/130H-RAL","price":4260.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0651\/2253\/3479\/files\/image_al3dgn_e3e8aa3a-0791-4cc2-82fd-e5764933f465.jpg?v=1790829340"}],"url":"https:\/\/www.thehousesupplier.com\/collections\/navien-combi-boilers.oembed","provider":"The House Supplier","version":"1.0","type":"link"}