Navien adds non-condensing tankless water heater

Navien’s new 120,000-Btu-per-hour offering to the NPN non-condensing tankless water heater lineup, the NPN-120E is the fourth model in the NPN-E (exterior) series. Like the other three models (NPN-160E, NPN-180E and NPN-199E), the new size is offered in separate natural gas and liquid propane configurations for outdoor-only operation. The NPN-120E provides 4.2 gallons per minute at 45 degrees F temperature rise and 0.81 uniform energy factor (measure of overall efficiency). The NPN series offers technology that includes a stainless-steel heat exchanger and stainless-steel burner with the same low NOx level as the NPE condensing tankless water heaters. NPN-E units have recirculation control built into their circuit boards and are designed with a pin-to-pin matching configuration for easy retrofit installations.

Photo courtesy of Navien