Description
The Navien NPE-240S2 is a wall-hung ultra-high efficiency condensing tankless gas water heater that supplies hot water on demand. It modulates from 13,300 to 199,900 BTU/h and can run on natural gas or propane.
Flow capacity is 5.8 GPM at a 67°F temperature rise, 8.7 GPM at 45°F and 11.2 GPM at 35°F, with a UEF rating of 0.96. The unit measures 17.3″ W x 27.4″ H x 13.2″ D and weighs 73 lbs. Installation location: indoor or outdoor wall-hung. Venting: Forced draft direct vent; 2″ or 3″ PVC, CPVC, approved polypropylene or stainless steel venting.
- Input range 13,300 – 199,900 BTU/h
- 5.8 GPM at 67°F rise
- UEF 0.96
- Dual stainless steel heat exchangers
- Electronic ignition; 120 V AC power supply
- 3/4 in. water and gas connections
- Residential warranty: 1 year labor, 5 years parts, 15 years heat exchanger










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