Models

NPE-Advanced

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
  • Reduced material and labor cost
  • Earn up to 3 LEED points with recirculation
  • Lower the HERS home index score
  • Optional HotButton™ on demand control kit
  • 2013 AHR Innovation Award Winner
2 inches PVC venting up to 60 feet.

No need to cut new chases. Low exhaust gas temps allows use of PVC, CPVC, System 636 and polypropylene vent systems, saving time and money.

1⁄2 inch gas pipe capability up to 24 feet.

Cut installation time, not new gas lines for retrofit applications.

Dual stainless steel heat exchangers.

Resist corrosion better than copper to provide longer life.

Field gas convertibility.

Negative pressure gas valve and a dual venturi system allows for easy field convertibility from NG to LP operation.

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.

ComfortFlow® recirculates hot water through supply lines, eliminating wait time for hot water.

NPE-Standard

The highest rated energy efficient tankless water heaters (0.99EF) on the market*. Standard Navien advantages include dual durable stainless steel heat exchangers, ½” gas pipe capabilities and 2″ PVC venting.

*EPA Energy Star Directory

  • More output for the money
  • Lower installation costs
  • Lower operating cost for the homeowner
  • Earn LEED points
  • Lower HERS score
  • 2015 AHR Innovation Award Winner
2 inches PVC venting up to 60 feet.

No need to cut new chases. Low exhaust gas temps allows use of PVC, CPVC, System 636 and polypropylene vent systems, saving time and money.

1⁄2 inch gas pipe capability up to 24 feet.

Cut installation time, not new gas lines for retrofit applications.

Dual stainless steel heat exchangers.

Resist corrosion better than copper to provide longer life.

Field gas convertibility.

Negative pressure gas valve and a dual venturi system allows for easy field convertibility from NG to LP operation.

Cascade up to 16 units with Navien
Ready-Link® technology

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. This flow and demand ratio will continue until all 16 units are generating hot water as needed. The Navien cascading system also balances out the workload of each unit for longer life.

Common vent up to 16 units

Building penetrations are reduced with Navien’s common venting feature.

Navien The Right Choice