Download the new Navien mobile app!

Apple iOSGoogle Android

Tankless Water Heaters for Commercial Applications

Navien new NPE-2 series condensing and NPN series non-condensing are the leading tankless water heaters on the market.

Features & benefits include:

Cuts installation time in half

With 1/2" gas pipe & 2" PVC venting, Navien commercial tankless water heaters install twice as fast as competing models. Navien EZNav™ intuitive controls with setup wizard make startup a breeze.

Unmatched performance & durability

Navien commercial tankless water heaters are the first to offer durable stainless steel heat exchangers for faster heating, corrosion resistance, and extended service life.

Easily meet larger flow requirements

Multiple NPE/NPN tankless water heaters can be cascaded to meet high-volume hot water needs, making them perfect for commercial applications. Navien’s cascading technology balances workload and allows common venting up to 12 units.

Choose the best commercial tankless water heaters & get more for your money

  • Building owners & property managers appreciate the efficiency and reliability of Navien tankless water heaters over outdated tank systems.
  • Architects & commercial builders like the space-saving design and flexible configuration. Our pin-to-pin design matches the configuration of other tankless models for easy retrofit installation.
  • Contractors love Navien’s customer support, training resources, and our industry-leading commercial warranty for added peace of mind.

NPE-2 Series: Best-selling commercial condensing tankless water heaters for ultra-high efficiency and lower emissions.

NPE-2 Series features:

  • Premium high efficiency up to .96 UEF and 15:1 TDR
  • NPE-A2 (advanced) and NPE-S2 (standard) models
  • Lower operating cost than competing tankless models
  • Dual condensing stainless steel heat exchangers for lower CO2 emissions & exhaust temperatures
  • Patented built-in ComfortFlow system with buffer tank, recirculation pump & fine-tuned controls (NPE-A2)
  • Backlit EZNav control panel for simple setup, status checks & troubleshooting

NPN Series: The first and only commercial non-condensing tankless water heaters with a stainless steel heat exchanger and burner.


NPE-2 Series features:

  • High efficiency up to .81 UEF and up to 9.5 GPM @35° temp rise
  • NPN-E (exterior) and NPN-U (universal interior/exterior) models
  • Patented NaviTech™ stainless steel heat exchanger and stainless steel burner with lean/rich stable cleaner burning technology
  • NaviVent™ concentric 3" x 5" venting
  • Integrated control panel for water temperature, operation status and troubleshooting
  • Units available in either Natural Gas (NG) or Liquid Propane (LP) gas

Find a Navien sales rep or distributor Near You

Please note: online purchases void Navien’s industry-leading commercial tankless water heater warranty.

Find an Installer

Contact Us