Navien NPE-180A Condensing Tankless Water Heater

  • Max Input: 150,000 BTU/H
  • Indoor or outdoor wall-hung
  • Residential/Commercial
  • ½ gas pipe capable up to 24′
  • Field convertible gas system
  • Ultra condensing efficiency
  • Dual stainless steel heat exchanges
  • Low NOx emissions (20ppm)
  • SCH 40, 2″ venting up to 60′
  • Cascading capable

NPE-Advanced

The most advanced condensing tankless water heaters in the industry with exclusive ComfortFlow® technology for continuous hot water.

  • Exclusive ComfortFlow® internal recirculation pump and buffer tank.
  • Earn up to 3 LEED points with recirculation.
  • Lower the HERS home index score.
  • Wi-Fi enabled with NaviLink® add-on.
  • Optional HotButton™ on demand control kit.
  • 2013 AHR Innovation Award Winner.
Navien NPE-180A Condensing Tankless Water Heater was last modified: May 29th, 2019 by HVAC Expert

NPE-Advanced Series Condensing Tankless Water Heaters

Item Npe a nv
NPE-180A
Summary
  • ½ gas pipe capable up to 24′
  • Field convertible gas system
  • Ultra condensing efficiency
  • Dual stainless steel heat exchanges
  • Low NOx emissions (20ppm)
  • SCH 40, 2″ venting up to 60′
  • Cascading capable
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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Comfort Flow

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.

comfortflow-unit

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.ComfortFlow

Front Panel Control Center

Front Panel Control Center

  • Front Panel Control CenterSelf-diagnostics.
  • Displays temperature and water flow rate.
  • Displays status of cascade operation.
  • Convertible display from °F to °C.
  • User Friendly Interface.
  • Easy setup.

Units

Cascade up to 16 units withNavien Ready-Link® technology.

  • With Navien’s Ready-Link® cascading technology, when a unit gets up to 80% capacity the next unit will turn on to help meet requirements. The flow on demand ratio will continue until all 16 units are generating hot water as needed. The Navien cascading system also balances out the workload of each unit for longer life.

Common vent up to 8 units

  • Building penetrations are reduced with Navien’s common venting feature.

Optional Wi-Fi remote control system

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

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.

Optional H2Air

H2Air Kit optional combination space
heating and domestic hot water system

comfortflow-system

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.

Optional Remote Control

remote

Optional Remote Control

  • Hot water temperature control.
  • Recirculation timer setting.Function to set the number of
  • initial activating water heaters for cascade system.
  • Temperature set-up for cascade system with external tanks.

People like you shared their purchase and installation experience!

Elaine ChangElaine Chang

I requested info online from a few places I found on the internet. Cozy Comfort was the most responsive, not just with the initial info request, but with back-and-forth calls, emails and a site visit. I wanted to convert my wood fireplace to gas, and Brian guided my through the whole process. He explained the type of unit I needed (gas insert), told me the different brands and models that would fit my fireplace opening, and explained the pros and cons of each.

Within a week of my first call, my new gas insert was installed, and a week after that, the stone mantle and hearth were in. The installers laid plastic to protect our flooring, maintained social distance, and were kind to my curious cat and dog. They walked me through how to use the fireplace once the gas insert unit was in. Also, my original fireplace was about 8 inches off-centre (wall is only 13’, so it was noticeable), and Cozy Comfort centred the new one - it looks stunning.

Thanks for everything, Cozy Comfort! I can’t wait for winter 😄

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Ron HutchisonRon Hutchison

I can't stress enough how happy & pleased we are with our Napoleon BBQ. From the moment we walked into the showroom, we were met with a very friendly greeting.

My wife and I were so impressed with the calm, sincere and gracious demeanor of Brian. He answered all our questions, gave us his thoughts and professional opinions on everything inquired about.

We will definitely continue our business with Brian and the entire team at Cozy Comfort Plus.

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Martin SykesMartin Sykes

Cozy Comfort Plus Inc. installed a new high efficiency furnace in our house two years ago and it has been operating perfectly ever since. Their service was straight forward, reasonably priced and good value for money. They even walked us through the complicated rebate program that was hard to understand without being involved in the industry.

I would highly recommend them for your next heating and cooling needs.

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