Model#: ECONECO24

What are the different product conditions?

Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 120 day money back guarantee
Open Box
New items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

EcoSmart ECO24 240V 24 kW Electric Tankless Water Heater

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


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
Compliance and Restrictions
warning: --


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



4.0 / 5.0
1 Review
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (1)
Yes, I would recommend this to a friend
Better than I thought.
We bought this because of the size of it. We knew nothing about these tankless heaters. Just started using it as our remodel is not finished. I am very happy so far. It takes a minute of running water for the heat to come but then it is steady HOT water. The service we got from Tyler Tool was awesome. I ordered standard shipping Friday evening and it was here Tuesday. Every other company I tried to get this heater from told me a two weeks wait before delivery. We were freaking out. My whole project would have been set back. I highly recommend Tyler Tool and these Eco Smart water heaters.
October 31, 2015

Questions & Answers

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 4 questions Browse 4 questions and 4 answers
We have 5 people, 2 adults, 3 teenagers in the household. Our home is 4 bebdrooms, 3 bath. Which tankless model best suits as whole house water heater?
KC on Aug 1, 2016
BEST ANSWER: Your question would best be answered by the manufacturer.Please call 877 474 6473
for technical assistance.
Two questions. 1. Will I be able to install this unit in the UK? And 2. Will this model be enough to run a shower?
Pez on Jul 7, 2016
BEST ANSWER: The unit is 240V which should not be an issue in the UK, also the 24kw unit would be able to supply water to a single shower
How does it do when lots of lime is present?
Lyndia on Mar 10, 2016
BEST ANSWER: For assistance with this question, please contact EcoSmart directly at 877 474 6473
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?
HWHuyler on Jan 29, 2015
BEST ANSWER: 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.