Specifications

NPE-Advanced Condensing Tankless Water Heaters

NPE-180A

Max Input : 150,000 BTU/H
Indoor & Outdoor Installation
Residential & Commercial

NPE-210A

Max Input : 180,000 BTU/H
Indoor & Outdoor Installation
Residential & Commercial

NPE-240A

Max Input : 199,900 BTU/H
Indoor & Outdoor Installation
Residential & Commercial

  • ComfortFlow® Technology. Exclusive built-in recirculation system
  • 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 60’
  • Cascading capable

NPE-Standard Condensing Tankless Water Heaters

NPE-150S

Max Input : 120,000 BTU/H
Indoor & Outdoor Installation
Residential & Commercial

NPE-180S

Max Input : 150,000 BTU/H
Indoor & Outdoor Installation
Residential & Commercial

NPE-210S

Max Input : 180,000 BTU/H
Indoor & Outdoor Installation
Residential & Commercial

NPE-240S

Max Input : 199,000 BTU/H
Indoor & Outdoor Installation
Residential & Commercial

  • 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 60’
  • Cascading capable

NPE-Advanced & NPE-Standard Dimensions

Ratings & Specificiations

Temperature Rise

Heating Capacity

Operating Cost

*Based on a cost of 1.09 per therm used

The industry’s strongest warranty

Long life components, advanced technology and superior craftsmanship assure that your Navien tankless water heater will provide years of trouble‑free service. For added peace of mind.

*Combi refers to a combination potable water and space heating application. Water heaters cannot be used in space heating only applications.