Navien has been a trusted name in water heaters since Founded 1978, based in South Korea. As part of KD Navien Co., Ltd., Navien benefits from extensive R&D and manufacturing resources. The brand is particularly known for The #1 condensing tankless water heater brand in North America with ComfortFlow recirculation technology and stainless steel heat exchangers. Navien is positioned in the premium price tier, making it a premium investment for water heaters.
Navien Water Heaters
by KD Navien Co., Ltd.Navien manufactures condensing tankless water heaters, combi-boilers, and condensing boilers for residential and commercial applications. The NPE-2 series tankless units feature ComfortFlow with built-in recirculation pump and buffer tank for instant hot water. The NCB-E combi-boiler provides both domestic hot water and hydronic space heating. NaviLink WiFi enables remote monitoring and diagnostics via smartphone. All units feature dual stainless steel heat exchangers.
PremiumTop-tier materials, design, and warranty
Navien Water Heaters Product Lines
NPE-2 Condensing TanklessNCB-E Combi-BoilerNHB Condensing BoilerNFB Fire Tube BoilerNPE-2 Commercial
Why Choose Navien for Water Heaters?
Navien stands out in the water heaters market because of The #1 condensing tankless water heater brand in North America with ComfortFlow recirculation technology and stainless steel heat exchangers. Their products carry 4 industry certifications, including Energy Star, UL Listed, CSA Certified, giving homeowners confidence in quality and compliance. Navien backs their water heaters with a 15-year warranty on heat exchanger; 5-year on parts; 1-year on labor (residential), which shows commitment to long-term reliability. With 5 dedicated product lines — NPE-2 Condensing Tankless, NCB-E Combi-Boiler, NHB Condensing Boiler, NFB Fire Tube Boiler, and more — there's a Navien option for virtually every need and budget.
Certifications & Standards
Energy StarUL ListedCSA CertifiedAHRI Certified
Warranty & Support
Warranty15-year warranty on heat exchanger; 5-year on parts; 1-year on labor (residential)
Phone Support1-800-519-8794
Official Websitehttps://www.navieninc.com
Where to Buy Navien Water Heaters
Water Heaters How-To Guides
View All →How to Adjust Water Temperature
Set your gas or electric water heater thermostat to the right temperature for comfort, safety, and lower energy bills -- plus how to verify the actual output with a thermometer.
How to Choose the Right Size Water Heater
Calculate the right water heater size so you never run out of hot water -- covers first-hour rating for tanks, GPM for tankless, quick sizing charts, and the mistakes that leave people taking cold showers.
How to Flush Your Water Heater
Flush sediment from your tank water heater to cut energy bills, eliminate rumbling noises, and add years to its life -- the most important maintenance task most homeowners skip.
Common Water Heaters Problems
View All →Leaking Water Heater
Water around the base demands immediate attention -- floor damage, mold, electrical hazards. Could be loose fittings, a failing T&P valve, a bad drain valve, or a rusted-through tank that needs replacement.
No Hot Water
No hot water from any fixture? Cause depends on gas vs. electric. Common culprits: pilot light out, tripped breaker, failed element, faulty thermostat or gas valve.
Pilot Light Won't Stay Lit
Lights but will not stay lit? Almost always the thermocouple -- a safety sensor that detects the pilot flame. When it fails, the gas valve shuts off. Straightforward DIY repair, under $25.
Water Heaters Types
View All →Water Heaters Buying Guides
View All →Navien Water Heaters FAQ
Is Navien a good brand for water heaters?
Navien Inc. is a South Korean manufacturer of condensing tankless water heaters, combi-boilers, and boilers, with US headquarters in Irvine, California. Founded in 1978 as KD Navien, the company is the #1 selling condensing tankless water heater brand in North America. Navien is known for their NPE-2 tankless series with ComfortFlow built-in recirculation and buffer tank, NCB-E combi-boilers, and NaviLink WiFi remote monitoring. All Navien units feature stainless steel heat exchangers for durability and corrosion resistance.
What warranty does Navien offer on water heaters?
Navien offers 15-year warranty on heat exchanger; 5-year on parts; 1-year on labor (residential).
Where is Navien made?
Navien is based in South Korea, headquartered in Irvine, California (US HQ); Seoul, South Korea (Global HQ).
What price range does Navien water heaters fall into?
Navien is positioned in the premium price tier for water heaters. You pay more but get superior quality, materials, and warranty coverage.
What water heaters product lines does Navien offer?
Navien offers 5 water heaters product lines: NPE-2 Condensing Tankless, NCB-E Combi-Boiler, NHB Condensing Boiler, NFB Fire Tube Boiler, NPE-2 Commercial.
What certifications does Navien have for water heaters?
Navien holds 4 certifications including Energy Star, UL Listed, CSA Certified.