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!

Jason HicksJason Hicks

Raymond and Ali were professional, and a pleasure to meet. They arrived on time, did the work (hot water heater removal and installation) efficiently and expertly, and did a great job of cleaning up afterward. This has been my consistent experience dealing with Cozy Comfort Plus over the years. Brian, Liz, Jay... all the team members I've interfaced with are top-notch. Highly recommended!

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Jon ConwayJon Conway

We are so happy with the service, support and product that we received from Cozy Comfort Plus. Brian was incredible to work with, he took the time to understand what we were looking for and helped us with the designs and what the best fireplace for us might be. He is extremely easy to work with, very easy to communicate with and so fast and responsive!

Everything happened exactly on schedule and as planned. It was a well oiled machine!! The crews that were here to build everything were super friendly, kind, courteous and knowledgeable.

Highly highly recommend to all 😀👍

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Michelle ZornMichelle Zorn

I had the most fabulous experience with Cozy Comfort Plus! Brian was very responsive for my first outreach all the way through to the completion of my beautiful fireplace! I live in a condo and as such, things are not straightforward when it comes to having work completed. There were a few extra hoops to jump through but Brian and his team were very diligent in ensuring that all the fittings were correct. I was so happy with my experience that I had them replace my furnace and add a smart home thermometer as well! I would highly recommend Brian and his team for their knowledge, skill and excellent customer service!

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