Navien Tankless Water Heaters

NPE-S2 Condensing Tankless Water Heater


The NPE-S2 condensing tankless water heaters are so efficient that they outperform much larger capacity non-condensing competitors. More output for the money, lower installation costs and lower operating costs for customers making it the best choice for your next installation.

High Efficiency Condensing Tankless Water Heater

  • ½ gas pipe capable up to 24'
  • Field convertible gas system
  • Ultra condensing efficiency
  • Dual stainless steel heat exchangers
  • Low NOx emissions (20ppm)
  • SCH 40, 2" venting up to 75'
  • Cascading capable
  • EZNav multi-line control panel
  • Built-in HotButton control panel
  • Common vent up to 12 units
Navien Tankless Water Heaters
Navien Tankless Water Heaters
Certifications
Model Max Input
NPE-150S2 120,000 BTU/h
NPE-180S2 150,000 BTU/h
NPE-210S2 180,000 BTU/h
NPE-240S2 199,900 BTU/h

NPE-A2 Condensing Tankless Water Heater


Built-in recirculation system

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 built-in recirculation pump allows the NPE-A2 to recirculate water either through an external recirc line or through existing supply lines while using NaviCirc®, without the need for external pumps or controls.

NaviLink

NaviLink makes it easy to communicate with your Navien systems anywhere internet service is accessible. The NaviLink module attaches easily to any new or existing* Navien tankless water heater, combi‐boiler and boiler.

High Efficiency Condensing Tankless Water Heater

  • ½ gas pipe capable up to 24'
  • Field convertible gas system
  • Ultra condensing efficiency
  • Dual stainless steel heat exchangers
  • Low NOx emissions (20ppm)
  • SCH 40, 2" venting up to 75'
  • Cascading capable
  • EZNav multi-line control panel
  • Built-in HotButton control panel
  • Common vent up to 12 units
Navien Tankless Water Heaters
Navien Tankless Water Heaters
Certifications
Model Max Input
NPE-180A2 150,000 BTU/h
NPE-210A2 180,000 BTU/h
NPE-240A2 199,900 BTU/h