Eccotemp 40H-NG White 6.3 GPM Natural Gas Whole House Outdoor Tankless Water Heater

Item #: bci1931086

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Technical Specs

Configuration Tankless Water Heater
Depth 4
Energy Factor .8
Fuel Type Natural Gas
GPM 6.3
Gas Connection 3/4"
Height 8
Ignition Type Electronic
Outdoor Approved Yes
Plug In Yes
Total BTUs 135000
UL Listed Yes
Voltage 110
Water Connection 1/2"
Width 17

Natural Gas Whole House Outdoor Tankless Water Heater

The Eccotemp 40H-NG Tankless Water Heater is very efficient and affordable. The Eccotemp 40H-NG tankless water heater in a Natural Gas Outdoor installed 6.3 GPM tankless water heater. Eccotemp 40H-NG tankless water heater is the ideal choice for a typical 3 bedroom, two bath home. The Eccotemp 40H-NG tankless water heater is the ideal way to heat water with gas. Average savings are approximately 20% off of your gas bill. With an outdoor installation, there is no additional vent piping to purchase.


  • Natural Gas Powered
  • Built-in antifreeze circuit
  • Digital remote with simple controls and diagnostics
  • 110 volt UL listed power cord
  • Electric ignition
  • 10 year warranty on heat exchanger
  • 5 year warranty on parts
  • 3/4" gas inlet
  • 1/2" water inlet and outlet
  • Flow Rate:
    • 35 degree rise: 6.0 GPM
    • 45 degree rise: 4.57 GPM
    • 77 degree rise: 2.6 GPM


  • 135,000 BTUs
  • Height: 8"
  • Width: 17"
  • Depth: 4"
  • Weight: 38 pounds
  • 6.3 GPM Maximum Flow Rate

Eccotemp Systems, LLC is a manufacturer of energy efficient products located outside of Charleston, in Summerville, SC. Their goal is to educate consumers and trade professionals about energy savings and efficiency primarily in the form of heating water, including benefits, total investments, installation and more. Seeing tankless and heat pump technology was the predominant method of heating water in every other part of the world, Eccotemp searched out and engineered a solution for the US and Canadian markets. Until Eccotemp, the only tankless units on the market were larger, extremely expensive units. Recognizing that a whole house tankless unit could be engineered, manufactured and delivered to the end consumer for about the same net cost of a standard water heater, Eccotemp was born. Over the past years, Eccotemp has taken a realistic and practical approach to its technology - delivering a state of the art tankless unit at an affordable price point.

Additional Eccotemp Links

Our SKU: 40H-NG

*Denotes a finish or option that has been discontinued

1 Question from the Community

  • The Eccotemp 40H-NG is a natural gas water heater.


    Is it a natural gas water heater?


    The Eccotemp 40H-NG is a natural gas water heater.


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