Free Shipping and No Hassle Returns
Free Shipping
We offer free shipping on orders over $199.*
No Hassle Returns
Don’t like it? Send it back. It’s that simple.*
Same Day Shipping
Most orders ship same day if placed by 5PM EST (M-F)
*Restrictions Apply. See Details »
Model#: ECONECO24

What are the different product conditions?

Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 60 day money back guarantee
Open Box
New or Recon items with possible minor cosmetic damage; CPO 60 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

EcoSmart ECO24 24 kW 240V Electric Tankless Water Heater

  • EcoSmart ECO24 24 kW 240V Electric Tankless Water Heater
Sale Price:
You Save
Free Shipping
(continental U.S.)
In Stock
Ships Monday


With any EcoSmart product, rest assured knowing you are getting a top of the line, eco-friendly water heater that will not only provide continuous convenience, but also help save both money and energy for years to come. With so many advances in heating technology in the recent years, EcoSmart has become the leader in water heating technology.
EcoSmart's ECO 24 Series tankless water heaters are configured for climates where incoming water temperatures can reach as low as 37 degrees. Capable of heating nearly 3 GPM at this temperature, the ECO 24 is the largest electric tankless water heater available with Self Modulating Technology. Suited for colder locations such as the northern U.S. and Canada that require more demanding water usage needs.
  • Save up to 60% on your water heating cost with an EcoSmart electric tankless water heater
  • Provides continuous hot water for ultimate convenience
  • Patented Self Modulating technology and design
  • Designed with standard and reliable easy to service elements and heat exchangers that provide 99.8% energy efficiency
  • Digital temperature control for accurate temperature settings
  • 24 kW 240V Electric Tankless Water Heater - ECO24
  • Owner's Manual


Length: 17 in.
Width: 17 in.
Height: 3.75 in.
Weight: 11 lbs.
Activation Flow: 0.25 GPM
Amperage: 100
Kilowatts: 24
Required Breaker: (3) 40 Amp DP
Thermal Efficiency: 99%
Voltage: 240V
Water Connection: 3/4 in. NPT
Wire Size: 8 Gauge


Product Reviews

Questions & Answers

Do you have questions about this product?

Get answers from real customers and in-house experts with AnswerBox.

2 Questions | 2 Answers
Displaying questions 1-2
  • 24 kW 240V Electric Tankless Water Heater


    How does it do when lots of lime is present?
    Asked on 3/10/2016 by Lyndia from Western Grove, Arkansas

    1 answer

    • Staff Reviewer


      For assistance with this question, please contact EcoSmart directly at 877 474 6473

      Answered on 3/15/2016 by Ray from Atlanta
  • 24 kW 240V Electric Tankless Water Heater


    I have a 2-floor town-house. Kitchen and half bath (w/washer) on first floor. Two full bath on second floor. ONLY OCCUPIED BY MYSELF AND WIFE. ONCE a year we may have one or two visitors for 7 to 10 days.
    WHAT is best for my hot water needs (1) Point of use in each bathroom and in kitchen or (2) whole house electric tank-less water heater?
    Asked on 1/29/2015 by HWHuyler from Kailua Hawaii

    1 answer

    • Staff Reviewer


      The whole home water heater will be the better investment. You will only be buying one water heater vs buying a 4 water heaters. As far as the overall energy savings go both choices will save you the same amount. Its the initial savings that are better with the whole home water heater.

      Answered on 2/24/2015 by Sonny from Lawrencville, GA
Displaying questions 1-2

Do you have a question about this product?