Navien makes it easy to go tankless for commercial and residential applications.

The most advanced condensing tankless water heaters in the industry with exclusive ComfortFlow® technology for continuous hot water.

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.


Exclusive built-in recirculation system included on all NPE-A models

Navien ComfortFlow® is the first and only system that incorporates a built-in insulated buffer tank and recirculation pump. The buffer tank eliminates the “cold water sandwich” effect and issues of minimum flow rates commonly found in other tankless water heaters. The recirculation pump saves on water bills by reducing the time to get hot water. When activated, the optional ComfortFlow mode results in additional energy usage.

I Rooter & Plumber are the Professionals to hire when you're seeking expert service for your tankless water heater needs.

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