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Model #ECO 36

Store SKU #1001385178

ECO 36 Tankless Electric Water Heater 36 kW 240 V

$59900
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$undefined.00 /mo* suggested payments with months* financingApply Now
  • Share the warmth with endless hot water for the whole home
  • Water heater requires 4 x 40 AMP double pole breakers
  • Same-day installation available. Call 1-855-400-2552
  • See More Details
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Product Overview

EcoSmart ECO 36 is a 36-kilowatt tankless electric water heater ideal for providing hot water for apartments, condominiums, townhomes and other whole home applications. It can provide between 3.6 and 8.7 gallons-per-minute depending on the inlet water temperature. To select the best solution for your hot water needs, please refer to the sizing guide. With EcoSmart you will be happier knowing the warm water you expect is available endlessly, consistently, and on-demand, allowing you to reduce your water and energy waste. Now that feels warm all over! EcoSmart - Sharing the Warmth.
  • Endless hot water with consistent temperature
  • Save Space - Compact size saves valuable storage space
  • Save Energy - Patented self-modulating technology adjusts energy based on hot water needs
  • Save Time - No venting, unit can be installed directly at the point-of-use
  • Save Money - Save up to 50% on water heating bills according to the Department of Energy
  • Digital thermostatic temperature control in 1-degree increments
  • Temperature range of 80-140°F (add in C)
  • Durable stainless steel heating elements, Limited lifetime warranty
  • Before purchase and installation, please verify that you have the proper electrical requirements for your chosen heater
  • ETL Listed to UL-499 and CAN/CSA-C22.2 No. 64
  • Selection guide
  • Check out our buying guide on water heaters
  • What tankless water heater is right for you?
  • Tankless Electric Buying Guide

    Ecosmart Tankless Water Heater

  • Click here for more information on Electronic Recycling Programs
  • California residents

Info & Guides

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ECO 36 Tankless Electric Water Heater 36 kW 240 V

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NamePerformance 27 kw Self-Modulating 5.27 GPM Tankless Electric Water HeaterECO 36 Tankless Electric Water Heater 36 kW 240 VECO 36 Tankless Electric Water Heater 36 kW 240 V with Inline Flow RestrictorTempra 29 Plus Adv Flow Control and Self-Modulating 28.8 kW 5.66 GPM Residential Electric Tankless Water Heater
Price
$51600
$59900
$59900
$79900
Ratings
(1341)
(1485)
(8)
(80)
Flow Rate @ 45 F Rise (gallons/min)4.10 54.37
Application TypeResidentialResidentialResidentialResidential
Wattage (watts)27000360003600028800
Number of Showers1-21-31-21-2
Indoor/OutdoorIndoorIndoorIndoorIndoor
Water Heater FeaturesWall MountedWall MountedWall MountedOverheat Protection,Wall Mounted
Fuel TypeElectricElectricElectricElectric
Flow Rate @ 45°F Rise (gallons/min) 5.46
View ProductView ProductView ProductView Product

Specifications

Dimensions

Product Depth (in.)
3.75
Product Height (in.)
17
Product Width (in.)
21
Water Connection Size (in.)
3/4

Details

Amperage (amps)
150
Application Type
Residential
Commercial/Residential
Residential
Electricity Phase
Single Phase
Finish Family
White
Flow Rate @ 35°F Rise (gallons/min)
7.03 gal (US)/min
Flow Rate @ 45°F Rise (gallons/min)
5.46
Flow Rate @ 55°F Rise (gallons/min)
4.47
Flow Rate @ 65°F Rise (gallons/min)
3.78
Fuel Type
Electric
Heat Exchanger Warranty
Lifetime
Indoor/Outdoor
Indoor
Maximum Temperature (F)
140
Minimum Activation Rate (gpm)
.25
Minimum Temperature (F)
80
Number of Elements
4
Number of Showers
1-3
Pack Size
1
Product Weight (lb.)
19
Required Volt Connection
240 volt
Returnable
90-Day
Uniform Energy Factor
0
Water Heater Features
Wall Mounted
Wattage (watts)
36000

Warranty / Certifications

Certifications and Listings
CSA Certified,ETL Listed,UL Listed
Labor Warranty
No Warranty
Part Warranty
Lifetime

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.2
    out of 1,502 reviews
  • 78% recommend this product
Filter by:
Showing 1-10 of 1,502 reviews
This is my first time with an on demand type water heater. It seems to work good so far. It is w...
This is my first time with an on demand type water heater. It seems to work good so far. It is well made and compact. Wasn't hard to install using a Watts installation kit. The one big problem I had was with leaks at the inlet nipples? Took me many times to get it to stop leaking! Instructions say not to use Teflon tape or pipe dope, it leaked at both connections. I tried tape, they leaked. I tried pipe dope, they leaked. I tried special pipe dope with gasket product (Block), both connections still leaked! I left the dope on and added 4 layers of yellow Teflon tape (thickest tape) and cranked down again, Finally no seepage, YEAH! Still holding. My solution would to have longer nipples on the water heater? I notice when I took connections apart there was only about 3/8" of threads being used in female coupling that attaches to the heaters male connection, with fittings tightened to the fullest??
by HLF
  • Verified Purchase
  • Recommended Product
Installed this as a alternative hot water system during the Summer months in combination with pre...
Installed this as a alternative hot water system during the Summer months in combination with preheated solar water system. Works perfectly as designed. Installed 5/1/2021. Goal was to eliminate the oil burner operation/dependency during the Summer months. It is installed after the preheated solar water. Very easy to install, very easy operation, but I'm a pro. My tip...make sure to install a way to "descale" it if you have hard water/water softener system. When incoming water temps are "hot" unit uses very little electric. On a good day water temp got to 115 deg, with unit set to 110 deg it uses NO electric.
by Tim
  • Verified Purchase
  • Recommended Product
3 people found this helpful
Great tankless electric water heater and the best customer service!
I bought this unit three years ago and it worked great until recently it sprung a leak. So I called customer service and they were amazing! Within an hour I had a new unit on its way via FedEx to my home! Two days later the new unit arrived. The warranty on this is the real deal and that’s what’s very important with these type of wireless tanks. I know they do they do not last as long as your standard hot water tank but that’s the trade-off. You get fast unlimited hot water but it won’t last 20 years. But with this warranty and this great customer service this is the perfect product! Very happy with this purchase and dealing with this company.
by Stevo
    • Recommended Product
    5 people found this helpful
    Leaks at the element tank.
    Careful, mine started leaking and instead of repairing it they say "Oh , you have to disassemble the unit, pull out the elements and soak them in vinegar and replace the o-rings - annually"! And by the way, the manual that comes with it fails to mention that. So go pay a plumber to do all this for you.. They do not stand behind their product.
    by csmit583
      20 people found this helpful
      This is my second one in less than two years. Word to the wise: BE SURE TO SEND THE REGISTRATION...
      This is my second one in less than two years. Word to the wise: BE SURE TO SEND THE REGISTRATION CARD IN, otherwise there is NO warranty of any kind. Hoping the second one lasts longer.
      by dvdoaks12
        19 people found this helpful
        Very happy with product! I had family over for two weeks, and ran two showers with people using b...
        Very happy with product! I had family over for two weeks, and ran two showers with people using bathroom facets without any change to temperature. Easy to install, and would highly recommend!
        by Larry
        • Verified Purchase
        • Recommended Product
        7 people found this helpful
        Rating provided by a verified purchaser...
        Rating provided by a verified purchaser
        by HomeDepotCustomer
        • Verified Purchase
        4 people found this helpful
        Burst after 10 months
        This was my sixth unit and it too failed within one year of installation. We’ve gone through six of them due to failures and having to keep with the same model for replacements. Previous replacements had issues with the heating elements or temp sensors going out but this time the heating element separated from its threaded cap. We woke up to find 2 inches of water in our bathroom and closet, along with drywall damage because the heater was located in the attic. After thousands of dollars worth of damage, it wasn’t worth it to exchange this unit for another one of its kind. I instead purchased a Rheem heater, and to my dismay it is identical internally, down to the same exact part numbers. Eco-smart warranty is nonexistent, so don’t plan on the manufacture helping you out. If you have already purchased this unit, it is in your best interest to establish some sort of extended warranty or home appliance warranty, this unit will fail it’s just a matter of when. I would also recommend installing an aluminum drain pan designed for tankless heaters, you can order from Home Depot for about $60.
        by ForeverInTexas
          30 people found this helpful
          It works better than I thought. I donthave to shut off water heater when not in use. We will see ...
          It works better than I thought. I donthave to shut off water heater when not in use. We will see when I get electric bill
          by Dougyj69
          • Verified Purchase
          • Recommended Product
          1 person found this helpful
          Awesome product works great better then expected
          Awesome product works great better then expected
          by Juan
          • Verified Purchase
          • Recommended Product
          1 person found this helpful
          Showing 1-10 of 1,502 reviews