Navien NPE-150S Condensing Tankless Water Heater

  • Max Input: 120,000 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-Standard

Our standard ultra condensing tankless technology with the industry’s top rated unit for energy efficiency

  • More output for the money.
  • Lower installation costs.
  • Lower operating costs for the homeowner.
  • Earn LEED points.
  • Lower HERS score.
  • 2015 AHR Innovation Award Winner.
Navien NPE-150S Condensing Tankless Water Heater was last modified: May 29th, 2019 by HVAC Expert

NPE-Standard Series Condensing Tankless Water Heaters

Item
NPE-150S
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 18,000 – 120,000 (BTU/H)
Propane gas 18,000 – 120,000 (BTU/H)
Efficiency Ratings UEF (NG & LP) 0.96
EF (Canada NG & LP) 0.97
Flow rate (DHW) 35°F (19°C) temp rise 6.8 GPM (25.7 L/m)
45°F (25°C) temp rise 5.3 GPM (20.1 L/m)
67°F (37°C) temp rise 3.2 GPM (12.1 L/m)
Dimensions 17.3″ W x 27.4″ H x 13.2″ D
Weight lbs (0kg)
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 -0.38″ WC
Propane gas manifold pressure (min-max) -0.04″ WC to -0.42″ WC
Minimum flow rate 0.5 GPM (1.9 L/m)
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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Output

When it comes to water heater performance it’s all about the output.
The NPE-S condensing tankless water heaters are so efficient that they outperform much larger capacity non-condensing competitors. More output for the money, lower installation costs and lower operating costs for customers makes it a smart choice.

Output

Control Center

Front Panel Control Center

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

Unit

Common vent up to 8 units

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

Cascade up to 16 units with Navien 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.

Unit

Optional Wi-Fi remote control

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 system on a wall or rack

Ready-Link® Manifold System for mounting on a wall or rack

  • Simply no waiting for factory racksOptional on wall or rank
  • Simply easy to install…same day.
  • Simply more profitable.
  • Simply visit your local Navien wholesaler and pick up everything you need.

People like you shared their purchase and installation experience!

Richard G.Richard G.

When my furnace broke down last winter, we were without heat for two weeks while the HVAC company sourced the parts from the US. I wanted to install a gas fireplace insert to replace my existing gas log set and to act as a backup heat source (e.g. furnace breaks down again, no power). I had a number of questions about the various gas fireplace inserts (e.g. size and fit in my old fireplace) and I contacted several HVAC companies.

I found that Brian from Cozy Comfort Plus to be the most helpful and he also gave me the best price. I was home at the time and I saw that the Cozy team did a great job installing the gas fireplace insert (e.g., assembling and fitting the insert, bending and capping the chimney, etc.). If you are looking for a gas fireplace insert, I would highly recommend that you give Brian a call.

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Jonathan ChanJonathan Chan

This company has excellent products and even better service, and it shows through client interaction. They care about their customers and complete their work in a timely fashion. Best of all they leave the work area in cleaner condition than when they arrived.

Their showroom has items you can't even imagine.

I have used Cozy Comfort Plus many times, personally purchased the following from them:
-Furnace
-A/C unit
-Air cleaner and purifier
-Tankless water heater
-Fireplaces (Mantles)
-Fire table and
-BBQ

Brian and his team are my go to.

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mehdi sehizadehmehdi sehizadeh

We purchased a gas insert for our home from the Cozy Comfort Plus. The whole process was super smooth and easy from the very beginning. Brian was very knowledgeable and professional. He patiently guided us through different options we had. The installation crew were also super friendly but at the same time professional and serious about their work.
I would definitely recommend them to anyone who is looking for a satisfactory experience.

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