Navien NPE-180A2 Condensing Tankless Water Heater, 150,000 BTU, 8.4 GPM with ComfortFlow Recirculation

The Navien NPE-180A2 is a condensing tankless water heater that turns 150,000 BTU/h of gas input into up to 8.4 GPM of continuous hot water at a 35°F rise. Its built-in ComfortFlow recirculation pump and buffer tank cut the wait at the tap and smooth out the cold-water sandwich that plagues basic tankless units. Dual stainless steel heat exchangers and an ENERGY STAR rating make it one of the most efficient ways to make hot water with gas.

• 150KBTU/h max input
• 8.4 GPMat 35°F rise
• 0.95 UEFcondensing efficiency
• NG / LPfield convertible

Why it earns its place on the wall

• Ultra condensing efficiency. A 0.95 UEF rating means more of every therm ends up in the water instead of the vent.
• Dual stainless steel heat exchangers resist corrosion for a long service life.
• EZNav controller with HotButton makes setup, diagnostics and on-demand recirculation simple.
• ComfortFlow built in. Recirculation pump and buffer tank are inside the cabinet, so hot water arrives faster without extra parts.
• Vents in 2″ or 3″ PVC and installs indoors or outdoors (outdoor vent kit sold separately).
• Cascades with Ready-Link for multi-unit commercial or large-home installations.

Specifications

Good to know

• Gas appliances must be installed by a licensed professional following the manufacturer’s installation manual and local codes. Manufacturer warranty terms depend on professional installation and registration.
• Specifications are from the manufacturer. Check the current spec sheet and sizing guide before ordering.
• Large units ship by ground freight. You will receive tracking when your order leaves.
• Questions on sizing or venting? Call +1 901-563-1990 or email support@mouchllc.com before you buy.