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Outdoor wall-hung tankless gas water heaters available in natural gas (NG) or liquid propane (LP).
The NPN series is the first and only non-condensing outdoor gas tankless water heater to offer a stainless steel heat exchanger which provides very low NOx comparable to our NPE series.
user-friendly controls allow you to adjust water temperature, operation status and troubleshooting.
Navien gas outdoor tankless water heaters can be cascaded to meet high-volume hot water demand. All NPN-E units include built-in recirculation control and software, and a water adjustment valve (WAV) and mixing valve to stabilize temperature during flow changes. The built-in air pressure sensor (APS) monitors and maintains air/gas pressure ratio during operation and ensures consistent hot water output during partial air blockage.
Available in NG or LP
Available in NG or LP
Available in NG or LP
Available in NG or LP
Available in NG or LP
Available in NG or LP
NaviLink & NaviLink Lite make it easy to communicate with your Navien systems anywhere internet service is accessible. The NaviLink system attaches easily to any new or existing* Navien tankless water heater, combi‐boiler or boiler. NaviLink Lite is great for single residential units and magnetically mounts to the side of the unit or can easily be mounted on the wall. Also, NaviLink Lite does not require external power.
* Existing installations may require the purchase of a new main PCB and front control panel.
Available for Download
on IOS or Android
NHW-A series tankless water heaters have 5 recirculation modes: Internal, Always On, Intelligent Preheat, Scheduled, and On-Demand with HotButton™ (optional accessory). One button push activates the internal recirculation pump and gas-fired burner, heating water in the supply lines to deliver hot water faster, while saving water and money. HotButton is CA Title 24 compliant.
Outdoor tankless water heaters generally have a lifespan of about 15 to 20 years. Navien heat exchangers have a warranty of 15 years.
Navien tankless water heaters provide on-demand hot water. A gas line, sufficient combustion air, a vent to evacuate combustion gas, and an electrical outlet are required to operate the gas unit properly.
Using an outside tankless water heater frees up space indoors. No additional venting is required when installing an NPN-E Series tankless water heater outside in non-freezing regions.
No, you cannot install an outdoor unit in a garage. Outdoor units can only be installed outdoors.
In comparison with traditional water heaters, tankless water heaters can be up to 34% smaller. Navien units can also be installed in more places, including crawl spaces and attics, since they are so small- about the size of a small suitcase.