Navien Begins Shipping Noncondensing Tankless Water Heater

Navien has started shipping the new NHW-A non-condensing tankless water heater. NHW-A is available in two configurations: NHW-AI for interior installations and NHW-AE for exterior installations. Both configurations are offered in 160,000 BTU/h, 180,000 BTU/h and 199,900 BTU/h sizes in either natural gas or liquid propane fuel operation.

NHW-A is a non-condensing tankless water heater that features the patented ComfortFlow recirculation pump and buffer tank originally introduced in the NPE-A condensing tankless water heater in 2012. The water heater helps eliminate the “cold water sandwich” effect and resolves the issue of low flow rates found in other tankless water heaters. It also reduces the wait time for hot water by allowing internal or external recirculation without the need for external parts or controls.

Users can program recirculation timing for either always-on, a set weekly schedule using the remote controller, or use the intelligent setting that learns the user’s hot water patterns and automatically adjusts the recirculation schedule to match.