



Navien is now the #1 manufacturer of all gas tankless water heaters (condensing and non-condensing) in North America*
*According to BRG
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Navien’s patented ComfortFlow® 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.
* 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).



Navien’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.

With Navien's Ready-Link® cascading technology, when a unit gets up to 80% capacity the next unit will turn on to help meet requirements. The flow on demand ratio will continue until all 32 units are generating hot water as needed. The Navien cascading system also balances out the workload of each unit for longer life.
Building penetrations are reduced with Navien's common venting feature.
ComfortFlow® Technology

ComfortFlow® Technology

ComfortFlow® Technology


Designed for recirculation of domestic hot water in applications where a dedicated return line is not available.

Part No. PFFW-001, NaviCirc Kit: 30022965A. External recirc pump and check valves not included.
Learn more about NaviCirc

NaviLink & NaviLink Lite make it easy to communicate with your Navien systems anywhere internet service is accessible. The NaviLink system attaches easily to any new or existing* Navien tankless water heater, combi‐boiler or boiler. NaviLink Lite is great for single residential units and magnetically mounts to the side of the unit or can easily be mounted on the wall. Also, NaviLink Lite does not require external power.
* Existing installations may require the purchase of a new main PCB and front control panel.
Available for Download
on IOS or Android



The H2Air Kit utilizes the NPE-A2 pump to circulate the hot water for the hydronic air handler. This removes the need to purchase an additional circulator for the heating system.
Designed for retrofit and new construction, the Navien H2Air Kit™ includes an add-on controller to integrate space heating and DHW between any NPE-A2 series tankless water heater and a hydronic air handler.
