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Home Improvement > Appliances > Water Heaters > Part #: 40-HI-LP
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Eccotemp 40HI-LP Indoor Liquid Propane Tankless Water Heater


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List Price: $549.00

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Eccotemp Systems LLC 40HI-LP Indoor Liquid Propane Tankless Water Heater

The 40HI-LP Tankless Water Heater is designed to supply hot water to a standard three bedroom, two bathroom home. This tankless water heater is an ideal choice for retrofitting your old storage tank heater, or can be plumbed in a new location. In addition, the 40HI-LP tankless water heater is powered by liquid propane which generally carries a lower operating cost than similar electric units.


  • Built-in antifreeze circuit
  • Digital remote with simple controls and diagnostics


  • Overall: 24" H x 15" W x 5" D
  • Overall Product Weight: 38lbs

Eccotemp Systems LLC 40HI-LP Indoor Liquid Propane Tankless Water Heater

Additional Documents

Energy Guide

Weights & Dimensions


  • Vent Minimum Diameter: 3"

Additional Weights & Dimensions

  • Overall: 24" H x 15" W x 5" D
  • Overall Product Weight: 38lbs
  • Water Connection Diameter: 0.5"
  • Height to Drain Valve: 18"


Product Type: Tankless Water HeaterFinish: White
Gloss Finish: YesMaterial: Stainless Steel; Copper
Waterway Material: Metal
  • Waterway Material Details: Copper
Handle Included: No
Portable: NoNumber of Items Included: 1
Mineral Build-Up Resistant: YesRust Resistant: Yes
Circuit Breaker Panel Included: YesHose Included: No
Water Filtration: YesGarden Hose Adapter Included: No
Isolation Valve Included: NoDirect Vent Required: Yes
  • Direct Vent Included: No
  • Compatible Direct Vent Part Number: 2ZVEWD03
Exhaust Backflow Prevention Kit Included: YesVenting Kit Included: No
Compatible Venting Kit Part Number: 2ZVEWD03Power Source: Liquid Propane
Installation Type: MountDefault Temperature: 115 Fahrenheit
Maximum Temperature: 145 FahrenheitMinimum Temperature: 90 Fahrenheit
Thermostat Included: Yes
  • Digital Temperature Display: Yes
  • Adjustable Thermostat: Yes
Maximum Flow Rate: 6.3 Gallons per Minute (GPM)
Minimum Flow Rate: 0.65 Gallons per Minute (GPM)Maximum Water Pressure in PSI: 80 PSI
Minimum Water Pressure in PSI: 20 PSIMaximum Input: 133600 BTUs
Energy Factor: 0.82 EFIndoor Use: Yes
Outdoor Use: NoAltitude Rating: 5000 Feet
Mobile Home Approved: YesPhase: Single Phase
Automatic Shutoff: YesAutomatic Overheat Protection: Yes
Shower Head Included: NoCommercial Use: Yes
Country of Manufacture: China 


Assembly Required: NoAdditional Parts Required: Yes
  • Parts Needed: Venting


Product Warranty: 5 year 

About the Manufacturer

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. Eccotemp Systems, LLC was conceptualized by Mike Elrod back in 2004. Seeing tankless and heat pump technology was the predominant method of heating water in every other part of the world, he 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.

Eccotemp Systems LLC 40HI-LP Indoor Liquid Propane Tankless Water Heater

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When you buy a Eccotemp 40HI-LP Indoor Liquid Propane Tankless Water Heater online from Wayfair, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Eccotemp Part #: 40-HI-LP here. If you have any questions about your purchase or any other Water Heaters product for sale our customer service representatives are available to help.Whether you just want to buy a Eccotemp 40HI-LP Indoor Liquid Propane Tankless Water Heater or shop for your entire home, Wayfair has a zillion things home.

Eccotemp Systems LLC 40HI-LP Indoor Liquid Propane Tankless Water Heater

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Return Policy

We want you to love it. If you don't, you may return your purchase within 30 days of delivery. All you need to do is visit our Self-Service Return Center for instructions. Return credits are issued within 24 hours once the item is received and inspected. Please note that shipping charges are non-refundable. The cost of return shipping will be deducted from your refund.

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Customer Reviews

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Tell us what you think about the 40HI-LP Indoor Liquid Propane Tankless Water Heater. It will help us provide you with better products in the future and help your fellow Wayfair shoppers make better purchases.

Average Overall Rating:
(based on 4 reviews)

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Good Water Heater

 from Indiana

Bought this for my hunting cabin in Minnesota. I recommend buying the horizontal vent kit rather than vertical for installation. It seems to be a little more affordable. No problems and seems to do the job. Might buy one for my home as well.

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Best Priced Tankless

 from Stongsville

Great heater. Its nice to actually afford a tankless water heater. I read so many reviews from people who tried to install this and kept thinking something did not work correctly. My advice, hire a real plumber to get the job done correct. Had this for a few months now and it works flawless. Would recommend.

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OK for a vacation cottage

 from New Park, PA

Missing parts, did not have the rise that the specifications quoted. Ended up buying extra parts and calling the plumber when we did not have hot water. Would only buy this for a single story vacation cottage.

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 from New York– Verified Buyer


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40HI-LP Indoor Liquid Propane Tankless Water Heater is also sometimes listed under the following manufacturer numbers: 40-HI-LP