Navien Tankless Water Heater

The  most advanced condensing tankless water heaters in the industry with  exclusive ComfortFlow technology for continuous hot water.  All Navien NFB and NHB boilers have Navien’s advanced burner system. The industry’s largest turn down ratio means easier installation with multiple zones while maintaining high operational efficiencies. 


  • Exclusive ComfortFlow® internal recirculation pump and buffer tank.
  • Earn up to 3 LEED points with recirculation.
  • Lower the HERS home index score.
  • Wi-Fi enabled with NaviLink® add-on.
  • Optional HotButton™ on demand control kit.
  • 2013 AHR Innovation Award Winner.

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Navien NCB-E and NFC are the ultimate high efficiency

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Innovations make Navien condensing combi-boilers the best choice for homeowners

 Navien NCB-E and NFC are the ultimate high efficiency condensing combination boilers with the capacities to supply both heat and domestic hot water for larger homes — enough space heat for a whole house, plus hot water to run up to 3 showers and a dishwasher all at the same time. 

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NCB-E & NFC Series Condensing COMBI-Boilers


  • AFUE 95% Energy Star Most Efficient for 2019
  • Energy Star certified
  • Backed by the industry’s strongest warranty—10 years on heat exchangers
  • Takes less space than floor standing boiler and tank water heater
  • Can be cascaded with Navien NPE water heater for increased DHW flow demand
  • Easy to use control panel
  • Elegant, clean appearance
  • Ideal for replacements or new construction
  • Optional NaviLink™ WiFi remote control system
  • NaviClean™ magnetic filtration system (Included NFC / Optional NCB-E)

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Navien is high efficiency and eco-friendly

 Whether you need an endless supply of hot water, efficient home heating or both, Navien has the most energy efficient solutions.

Navien offers the industry’s most advanced condensing tankless water heaters, condensing boilers and the first combi-boilers strong enough to support whole house heating and hot water for larger homes.

Navien Tankless the Right Choice for your Home

 Unlike the conventional storage tank water heaters that will eventually run out of hot water, Navien's Condensing Tankless Water Heaters can deliver an endless supply because they only produce hot water when you need it which limits energy and water waste. With a Navien Tankless Water Heater, you will never have to worry about running out of hot water no matter how much you use at a single time.