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Navien NPE-240A 199,000 BTU Condensing PremiumGas Tankless Water Heater


Navien NPE-240A 199,000 BTU Condensing PremiumGas Tankless Water Heater

Navien has been pushing the boundaries of efficiency for 25 years. The NPE-240A is a result of their dedication to providing an effective and green water heating unit. The NPE-240A and all Navien models utilize condensing technology which captures additional heat lost by typical water heaters. The Navien NPE-240A's energy factor is superior to both traditional water heaters and noncondensing tankless models. Reduced vent temperatures due to this condensing technology allow you to use PVC venting, which saves you money and contributes to the ease of installation. The Navien NPE-240A has excellent technology for reducing your heating costs and carbon footprint.

Product Features:

ComfortFlow Technology
ComfortFlow is Navien's recirculation system and it is included in the NPE-240A. By combining a small insulated buffer tank with a recirculation pump the NPE-240A ensures that you will always have hot water available instantly.

Help the Environment
The Navien NPE-240A will reduce your home's impact on the environment. Eco Pre-mixed Burners reduce CO and NOx emissions by combining gas heating and air before ignition. The result is a nearly 75% reduction in polluting emissions. In fact, an installed Navien NPE-240A reduces CO2 by the same amount as 31 cypress trees.

Incredible Efficiency
Navien products reduce energy consumption without sacrificing comfort. Their tankless models, such as this one, only heat water when you need it, reducing energy expenditure. Also, the NPE-240A uses a secondary heat exchanger to transform condensation and exhaust into additional heat. This reduces the ventilation temperature and increases the energy factor. The NPE-240A's efficiency translates directly into savings on operation costs for you!

Tremendous Durability
The Navien NPE-240A uses stainless steel for the Eco Pre-mixed Burner and both heat exchangers. This prevents corrosion and increases the lifespan of your NPE-240A. 

A Product You Can Trust
Navien products are recognized by an array of organizations. The NPE-240A is certified by Energy Star; the Air-Conditioning, Heating and Refrigeration Institute; the Canadian Standards Association; and the National Sanitation Foundation.

Product Includes:

  • (1) Conversion Kit
  • (1) Wall Mounting Bracket
  • (4) Tapping Screw & Anchor
  • (2) 2" Vent Termination Cap
  • (4) 2" Wall Flange

Product Specifications:

General Data
Product Line NPE
Fuel Source Natural Gas
Vent Type Direct Vent
Storage Type Tankless
Installation Location Indoor/Outdoor
Gas Conversion Kit Included
Performance Data
Flow Rate at 45F Temperature Rise (GPM) 8.7
Maximum Input Capacity (BTU) 199900
Minimum Input Capacity (BTU) 19900
Energy Factor 0.97
Minimum Flow Rate (GPM) 0
Electrical Data
Voltage (Volts) 120
Phase 1
Frequency (Hertz) 60
Primary Vent Pipe Diameter (Inches) 3
Secondary Vent Pipe Diameter (Inches) 2
Gas Connection Size (Inches) 3/4
Cold Water Inlet (Inches) 3/4
Hot Water Outlet (Inches) 3/4
Product Height (Inches) 27 2/5
Product Width (Inches) 17 3/10
Product Depth (Inches) 13 1/5
Product Weight (Pounds) 82
Energy Star Listed Yes
CSA Listed Yes
AHRI Certified Yes
NSF Listed Yes

Note: Navien is not affiliated with and does not sponsor, endorse or support Hebron Consumer Products or support/warranty products on this website.

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Product Reviews

Showing reviews 1-10 of 24 | Next

  1. great unit 5 Star Review

    Posted by on 8th Mar 2021

    great unit with quick hot water. we have the T valve handle upgrade with 2 T's installed. works great!

  2. Good replacement 4 Star Review

    Posted by on 8th Mar 2021

    We had a Navien tankless, LP gas water heater. After the winter of 2021 had to replace it and chose the same model. We like the tankless gas, as it saves quite a bit on electric utilities.

  3. Great tankless water heater 5 Star Review

    Posted by on 4th Mar 2021

    Our Navien 240 burst in the Texas winter storm. We did not hesitate to buy another one.

  4. So far so good! 4 Star Review

    Posted by on 29th Oct 2020

    I am very pleased thus far. The unit started right up after install was complete! It's extremely quiet and we are very satisfied after the 3 weeks of operation!

  5. So far so good 5 Star Review

    Posted by on 22nd Oct 2020

    I literally received this NEXT day. I was shocked.
    So far its working great, thanks!

  6. Smooth installation & configuration 5 Star Review

    Posted by on 5th Sep 2020

    This is my 2nd Navien condensing on-demand waterheater. Especially happy with the internal recirculate/preheat capability - no more wasting gallons of water waiting for it to get hot.

  7. Fantastic Tankless Water Heater 5 Star Review

    Posted by on 15th Aug 2020

    This tankless water heater was recommended to me by my neighbor, who happens to be a master plumber. It replaced a 15-year-old Rheem tankless water heater. So far we've been extremely pleased. These tankless water heaters have come a long way in the last 15 years!

  8. replacement 5 Star Review

    Posted by on 21st Nov 2019

    I am replacing 2 Navien heaters that have served us well. these operate 60 hours a week, 52 weeks a year. they perform as advertised.

  9. Satisfied Customer 5 Star Review

    Posted by on 1st Oct 2019

    I have the switch set to internal circulation, and I have dip switch on the front panel with #1 on. Is there any other setting to increase the speed that the hot water reaches my faucets.

  10. Happy me. 5 Star Review

    Posted by on 29th Mar 2019

    I was very hesitant about installing a tankless water heater. It just didn't make sense that it wouldbe able to keep up very well. I bought it because the Navien came highly recommended by a couple of people I know. So far I am very happy with it. I have 17 people staying with me over the 4th of July weekend. That will be the real test. Please send the survey out again towards the end of the year. I am concerned about the lack of a warranty.

Showing reviews 1-10 of 24 | Next