The most advanced condensing tankless water heaters in the industry with exclusive ComfortFlow® technology for continuous hot water.
| Item |  NPE-180A |
|
|---|---|---|
| Summary |
|
|
| Heat Capacity (input) | Natural gas | 15,000 – 150,000 (BTU/H) |
| Propane gas | 15,000 – 150,000 (BTU/H) | |
| Efficiency Ratings | UEF (NG & LP) | 0.96 |
| EF (Canada NG & LP) | 0.97 | |
| Flow rate (DHW) | 35°F (19°C) temp rise | 8.4 GPM (31.8 L/m) |
| 45°F (25°C) temp rise | 6.5 GPM (24.6 L/m) | |
| 67°F (37°C) temp rise | 4.3 GPM (16.3 L/m) | |
| Dimensions | 17.3″ W x 27.4″ H x 13.2″ D | |
| Weight | 75lbs (34kg) | |
| Installation Type | Indoor or outdoor wall-hung | |
| Venting Type | Forced draft direct vent | |
| Ignition | Electronic ignition | |
| Water Pressure | 15.0-150.0 psi | |
| Natural gas supply pressure (from source) | 3.5″ WC to 10.5″ WC | |
| Propane gas supply pressure (from source) | 8″ WC to 13″ WC | |
| Natural gas manifold pressure (min-max) | -0.04″ WC to -0.84″ WC | |
| Propane gas manifold pressure (min-max) | -0.05″ WC to -0.5″ WC | |
| Minimum flow rate | 0.5 GPM (1.9 L/m), < 0.01 GPM (0.04 L/m) option for “A” models* | |
| Connection Sizes | Cold water inlet | 3/4″ |
| Hot Water Outlet Size | 3/4″ | |
| Gas inlet | 3/4″ | |
| Power Supply | Main supply | 120V AC, 60Hz |
| Maximum power consumption | 200W (max 2A), 350W (max 4A) with external pump connected | |
| Materials | Casing | Cold rolled carbon steel |
| Heat exchangers | Primary heat exchangers: stainless steel; secondary heat exchangers: stainless steel | |
| Venting | Exhaust | 2″ or 3″ PVC, CPVC, polypropylene / 2″ or 3″ special gas vent type BH (Class II, A/B/C) |
| Intake | 2″ or 3″ PVC, CPVC, polypropylene / 2″ or 3″ special gas vent type BH (Class II, A/B/C) | |
| Vent clearances | 0″ to combustibles | |
| Safety Devices | Flame rod, APS, ignition operation detector, water temperature high limit switch,exhaust temperature high limit sensor, power surge fuse | |
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Exclusive built-in recirculation system included on all NPE-A models.
Navien ComfortFlow® is the first and only system that incorporates a built-in insulated buffer tank and recirculation pump.
The buffer tank eliminates the “cold water sandwich” effect and issues of minimum flow rates commonly found in other tankless water heaters. The recirculation pump saves on water bills by reducing the time to get hot water. When activated, the optional ComfortFlow mode results in additional energy usage.
ComfortFlow® recirculates hot water through supply lines, eliminating wait time for hot water.
Front Panel Control Center
Self-diagnostics.Cascade up to 16 units withNavien Ready-Link® technology.
Common vent up to 8 units
Optional Wi-Fi remote control system
NaviLink makes it easy to communicate with your Navien systems anywhere internet service is accessible. The NaviLink module attaches easily to any new or existing* Navien NPE Series tankless water heater, NCB-E Series combi‐boiler and NHB Series boiler.
Optional hot water activation
system for all NPE-A units
At the push of a button, the Navien HotButton hot water system activates the internal recirculation pump and gas fired burner to heat water in the supply lines to provide hot water whenever it’s needed.
The H2Air Kit utilizes the NPE-A pump to circulate the hot water for the hydronic air handler. This removes the need to purchase an additional circulator for the heating system.
Designed for retrofit and new construction, the Navien H2Air Kit™ includes an add-on controller to integrate space heating and DHW between any NPE-A series tankless water heater and a hydronic air handler.
Claire Lemieux-Lamarche
Fair, professional, efficient and friendly company to deal with. Great customer service. All work was performed on time and way above our expectations. A company that communicates well, is true to their word, cares about their customers & focuses on delivering an excellent experience. We had the following installed: heat pump, furnace and smart thermostat. We also got attic insulation added & our tankless water heater flushed. Highly recommend this family-owned business.
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Maria LeitaoMaury from Cozy Comfort did a fantastic job of examining the functionality of my furnace and cleaning the major components. He tested my furnace to make sure that it would run efficiently in the winter. My humidifier was cleaned, the drip pad replaced and settings properly set up. Thank you Maury for your effective care. thank you Cozy Comfort- you are a company that has proven your worth over the past 25 years that you have looked after my family's heating and cooling needs.
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Mark MOutstanding. We got a "red tag" from Enbridge for a leak. Cozy Comfort's experienced technician came by and fixed the problem in less than an hour for a reasonable rate.
The company whose installation caused this problem in the first place quoted me over $1000 for a rebuild of the exhaust vent which is just PVC pipes and would have left us without hot water for over a week. I'll go with Cozy Comfort Plus for all my heating & cooling maintenance from now on.
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