Ecosmart ECO 36 High-Capacity 36 kW Electric Tankless Water Heater


Retail Price: $840.00
Weight: 21.60 lbs

Rush Order:

Ideal for large, single family homes with multiple hot water applications

The ECO 36 is Ecosmart's the most powerful tankless water heater, with the capacity to provide hot water to large, single-family homes, even in areas with cold climates. It can supply hot water to two sinks and four showers simultaneously.


  •  Saves of up to 50% on heating costs
  •  Stylish design fits most modern decors
  •  Compact size saves valuable storage space
  •  Adjusts its energy usage based on hot water demand
  •  Digital temperature control with 1-degree increments for precise control
  •  Copper and stainless components are efficient, durable and easy to replace

  •  Downloadable installation and owner's manual

Output chart


Voltage 240
Phase Single
Wattage 36 kW
Elements 4 x 9 KW at 240 Volts
Amperage draw 150 Amps
Required breaker 4 x 40 Amp DP breakers
Required wire size 4 x 8 AWG
Electrical panel 300 Amps
HZ 50/60
Pipe fittings 3/4" NPT
Dimensions 17 x 19 x 3.75
Unboxed Product Weight 17.4 lbs.
Heat exchanger material Copper
Protection Thermal Auto
Temperature Control Digital
Activation flow rate 0.3 GPM
Energy efficiency 99.8 %
Certification ETL listed to UL 499 & CSA
Warranty Lifetime on exchangers, electronics, and elements.
(5 years outside of continental US and Canada)

Frequently Asked Questions ("FAQs")

Q1: In the table of specs above, it says that a 300 amp electrical panel is required. I was told 200 amps would be ok. Which is correct?
A1: The heater itself requires a maximum of 160 amps because it is wired to four 40 amp di-pole breakers. But your home has other electrical demands. Sum up the amperage of all the demands that will, by any chance, be simultaneously running). Add that to 160 amps. The total is how many amps the electrical panel needs to run the ECO 36.

Q2: What is the maximum output temperature?
A2: The maximum output temperature set at the factory is 140°F, 9KW per element. However, it is possible for it to be increased to 180°F. After removing the cover, at the very top of the jumper strip look for a jumper marked "180". After electric power is disconnected, place a jumper on these two pins. Once the power is restored, the unit will allow a setpoint of up to 180 degrees F. If the jumper is not there, then it can't be done with your version of the ECO 36.

Related Gadgets

Average Customer Rating:

1 Most useful customer reviews
Apr 7, 2016
This customer purchased this item.
Loading...Was this review useful to you? Yes (0) / No (0)

Type the characters you see in the picture...


Share Ecosmart ECO 36 High-Capacity 36 kW Electric Tankless Water Heater