Model#: ECONECO36

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Brand new items;Full manufacturer warranty available
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New items with possible minor cosmetic damage; CPO 120 day money back guarantee
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EcoSmart ECO36 36 kW 240V Self-Modulating Electric Tankless Water Heater

  • EcoSmart ECO36 36 kW 240V Self-Modulating Electric Tankless Water Heater
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The EcoSmart ECO 36 36 kW 240V Self-Modulating Electric Tankless Water Heater, with Patented Self Modulating Technology, is the most advanced technology in water heating. With self-modulating technology, it regulates exactly how much energy is needed to heat the amount of hot water needed.
Not only do the top of the line tankless water heaters save you money, they are also compact and wall mounted so you save valuable storage space for a new closet. EcoSmart models are the only electric tankless water heaters with a lifetime warranty on the market. If you have a need for a high amount of hot water then the ECO 36 is the right choice. It is the largest electric tankless water heater available with the patented self-modulating technology, ideal for the northern United States, where incoming water temperatures can reach as low as 37 degree F.
The ECO 36 is capable of heating nearly 3.5 GPM at this low temperature and can handle up to two showers running at the same time without never running out of hot water. For homes in the southern United States, the ECO 36 is perfect for large tubs or high demands of hot water between multiple applications, handling up to 6 GPM that can run four showers and a sink simultaneously. It's the most powerful model, with the capacity to handle a large single-family home.
  • 36 kW at 240V, this electric water heater is energy efficient and easy to maintain
  • 6 GPM tankless water heater provides on demand, endless hot water
  • Patented self -modulating technology and digital temperature control in 1-degree increments gives users complete control of hot water for even greater savings
  • Save up to 50% on your water heating costs and space with a compact construction reducing taken space by 90%
  • Copper and stainless components designed for efficiency, durability and easy replacement
  • Stylish and advanced design is pleasing to the eye
  • 36 kW 240V Self-Modulating Electric Tankless Water Heater - ECO36
Compliance and Restrictions
warning: --


Length: 17 in.
Width: 3.75 in.
Height: 19 in.
Weight: 17.4 lbs.
Amperage: 150A
Electrical Panel Amperage: 300A
Fitting Size: 3/4 in.
Fitting Type: NPT
Hertz: 50 / 60
Minimum Flow To Activate: 0.25 GPM
Phase: Single
Required Breaker: 4 x 4 DP
Required Wire: 4 x 8 AWG
Thermal Efficiency: 99.80%
Volts: 240V
Wattage: 36 kW



5.0 / 5.0
1 Review
5 Stars
4 Stars
3 Stars
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1 Star
Yes, I would recommend this to a friend (1)
Easy To Use (1)
Ergonomic Design (1)
Powerful (1)
Lightweight (1)
Yes, I would recommend this to a friend
Easy To Use
Ergonomic Design
So far the ECO 36 has been great. My issues are not with the unit, its with my cities water pressure. The unit makes great hot hot water.
February 5, 2017
over 2 years ago

Questions & Answers

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Browse 14 questions Browse 14 questions and 13 answers
is the hot water constant?
A shopper on Oct 1, 2016
BEST ANSWER: Have a 2 story house, current water heater is in garage, will I have instant hot water upstairs?
The lights flicker when the hot water is turned on. Why is that ?
A shopper on Nov 1, 2016
BEST ANSWER: Your question would be best answered by Ecosmart direct. You can reach them at (877) 723-3545.
I have tank heater now , will l likely have to completely replumb my house?
A shopper on Oct 18, 2016
BEST ANSWER: No. Not necessarily.
can you send me the listing on this product
Senior Plumbing Inspector on Jun 10, 2016
BEST ANSWER: The listing has been emailed to you
Are you doing any sales now?...I will like to get one of if they are on sale... thanks Angel
Angel on Aug 15, 2016
BEST ANSWER: The EcoSmart ECO36 36 kW 240V Self-Modulating Electric Tankless Water Heater is currently listed at $613.99.
How will this unit handle hard well water found in Florida where there can be heavy scaling?
Joe on Apr 24, 2016
BEST ANSWER: This unit will work fine with hard water, following the recommended schedule for flushing the lines.
I have an eco model 27 that has worked for about a month. I went to take a bath. I turned the hot water on and after about 3 min and the water was cold. I checked the numbers on the panel and they were not on. All three circuit breakers are good. Where should I go next?
Bernard C on Apr 9, 2017
BEST ANSWER: For technical assistance, please contact ECO Smart directly at 877-474-6473
How hot will the heater heat the water to?
Tim H on Mar 17, 2017
BEST ANSWER: I have found the ECO 36 to heat water to near 140 if turned up all the way. Yes in winter. No issues with temp during use.
Can 8/3 exterior wire be used in doors ?
Butch on Feb 12, 2017
BEST ANSWER: We recommend speaking with EcoSmart installation specialist. For assistance, please call 877 474 6473
I have 200 amp break panel. Have change all new 300 amp break panel for 36 Kw ?
Victor L on Feb 4, 2017
BEST ANSWER: I have a 200 amp breaker panel and have had no proplems with the Eco 36. Make sure you have space for the 4 double 40 breakers needed for operation of the unit.