Model # ECO 24

Internet #203316217

EcoSmart 24 kW Self-Modulating 4.6 GPM Electric Tankless Water Heater
0854920002084

EcoSmart

24 kW Self-Modulating 4.6 GPM Electric Tankless Water Heater

  • Provides endless hot water for whole house in warmer climates
  • Requires 3 x 40 AMP Double Pole Breakers
  • Call for an Installation Quote at 1-855-400-2552
$ 449 38
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Frequently Bought Together

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Product Overview

  • Provides endless hot water for whole house in warmer climates
  • Requires 3 x 40 AMP Double Pole Breakers
  • Call for an Installation Quote at 1-855-400-2552
EcoSmart Electric Tankless Water Heaters, also called instantaneous on-demand water heaters, provide endless hot water on demand and only as needed. Self-modulating flow sensor technology regulates the amount of energy required to heat the water needed. This smart technology heater is configured for climates where incoming water temperature can reach as low as 37°F. This model is well suited for homes in the northern U.S. and Canada, as well as in the southern U.S. that have large Roman-style or Jacuzzi tubs and generally more demanding water usage needs.
  • Patented self-modulating technology and design
  • Ensures you never run out of hot water
  • Digital temperature control allows you to set your temperature in increments of 1 Degree
  • Prior to purchase and installation, please verify this model is the right size for your hot water needs and electrical requirements
  • All EcoSmart electric tankless water heaters come with an automatically resettable thermostat as opposed to a manually resettable thermostat; the integration of all components and quick connections are designed to promote simplicity for the installer and the user
  • Lifetime warranty
  • Tankless Electric Buying Guide

    Ecosmart Tankless Water Heater

  • Easy to maintain, easy-to-replace heating elements
  • A reliable hot water solution from EcoSmart
  • Selection guide
  • Other models available
  • Click here for more information on Electronic Recycling Programs
  • California residents see Prop 65 WARNINGS

Product Overview

  • Provides endless hot water for whole house in warmer climates
  • Requires 3 x 40 AMP Double Pole Breakers
  • Call for an Installation Quote at 1-855-400-2552
Model #: ECO 24
Internet #: 203316217

EcoSmart Electric Tankless Water Heaters, also called instantaneous on-demand water heaters, provide endless hot water on demand and only as needed. Self-modulating flow sensor technology regulates the amount of energy required to heat the water needed. This smart technology heater is configured for climates where incoming water temperature can reach as low as 37°F. This model is well suited for homes in the northern U.S. and Canada, as well as in the southern U.S. that have large Roman-style or Jacuzzi tubs and generally more demanding water usage needs.

  • Patented self-modulating technology and design
  • Ensures you never run out of hot water
  • Digital temperature control allows you to set your temperature in increments of 1 Degree
  • Prior to purchase and installation, please verify this model is the right size for your hot water needs and electrical requirements
  • All EcoSmart electric tankless water heaters come with an automatically resettable thermostat as opposed to a manually resettable thermostat; the integration of all components and quick connections are designed to promote simplicity for the installer and the user
  • Lifetime warranty
  • Tankless Electric Buying Guide

    Ecosmart Tankless Water Heater

  • Easy to maintain, easy-to-replace heating elements
  • A reliable hot water solution from EcoSmart
  • Selection guide
  • Other models available
  • Click here for more information on Electronic Recycling Programs
  • California residents see Prop 65 WARNINGS

Info & Guides

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Name 18 kW Self-Modulating 3.5 GPM Electric Tankless Water Heater 24 kW Self-Modulating 4.6 GPM Electric Tankless Water Heater 27 kW Self-Modulating 5.3 GPM Electric Tankless Water Heater Performance 24 kw Self-Modulating 4.6 GPM Electric Tankless Water Heater
Brand EcoSmart EcoSmart EcoSmart Rheem
Ratings (228) (61) (261) (19)
Wattage (watts) 18000 24000 27000 24000
Water Heater Features Wall Mountable Wall Mountable Wall Mountable Wall Mountable
Flow Rate @ 45 F Rise (gallons/min) 2.73 3.64 4.10 3.64
View Product View Product View Product View Product

Specifications

Dimensions

Product Depth (in.)
17
Product Height (in.)
18
Product Width (in.)
4
Water Connection Size (in.)
3/4 In. NPT

Details

Amperage (amps)
100
Application Type
Residential
Electric Product Type
Residential
Finish Family
White
Flow Rate @ 35 F Rise (gallons/min)
4.68 gal (US)/min
Flow Rate @ 45 F Rise (gallons/min)
3.64
Flow Rate @ 55 F Rise (gallons/min)
2.98
Flow Rate @ 65 F Rise (gallons/min)
2.52
Fuel Type
Electric
Heat Exchanger Warranty
Lifetime
Indoor/Outdoor
Indoor
Maximum Temperature (F)
140
Minimum Activation Rate (gpm)
.25
Minimum Temperature (F)
80
Product Weight (lb.)
14lb
Required Volt Connection
240 volt
Returnable
90-Day
Uniform Energy Factor
0
Water Heater Features
Wall Mountable
Wattage (watts)
24000
Wattage (watts)
24000

Warranty / Certifications

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

Specifications

Dimensions

Product Depth (in.)
17
Product Height (in.)
18
Product Width (in.)
4
Water Connection Size (in.)
3/4 In. NPT

Details

Amperage (amps)
100
Application Type
Residential
Electric Product Type
Residential
Finish Family
White
Flow Rate @ 35 F Rise (gallons/min)
4.68 gal (US)/min
Flow Rate @ 45 F Rise (gallons/min)
3.64
Flow Rate @ 55 F Rise (gallons/min)
2.98
Flow Rate @ 65 F Rise (gallons/min)
2.52
Fuel Type
Electric
Heat Exchanger Warranty
Lifetime
Indoor/Outdoor
Indoor
Maximum Temperature (F)
140
Minimum Activation Rate (gpm)
.25
Minimum Temperature (F)
80
Product Weight (lb.)
14lb
Required Volt Connection
240 volt
Returnable
90-Day
Uniform Energy Factor
0
Water Heater Features
Wall Mountable
Wattage (watts)
24000
Wattage (watts)
24000

Warranty / Certifications

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

Questions & Answers

Does this require 3 breakers?

From what I see it requires 3 breakers. I would be replacing a existing water heater. Would I have to run new wire and add another breaker?
Asked by: Scott
Requires 3 x 40 AMP breakers dedicated, 3 x 8 AWG wires, 240 Volts
Answered by: Jimbo
Date published: 2018-05-14

Is this what we need to get instant hot water when the hot water heater is a long way away? Does...

Is this what we need to get instant hot water when the hot water heater is a long way away? Does this stop heating when the hot water finally arrives from the basement?
Asked by: El
This is in place of a hot water heater. I installed one in a rental that I have. Works great except for large whirlpool tub. Can’t open faucet wide open to get good hot water. I will never install another hot water tank. Will use these only if enough Electric in the panel.
Answered by: Mark
Date published: 2018-05-21

what size do we need

to replace 50 gallon water heater 2 bathrooms/dishwasher/washer, etc for whole house
Asked by: debbie
To properly size the Ecosmart tankless heater for your needs, please contact our technical support line @ 877-474-6473. Thank you.
Answered by: RheemSupport
Date published: 2017-10-04

Can this be installed in an unheated garage in Vermont?

Can this be installed in an unheated garage in Vermont?
Asked by: KO
Yes, but be sure to insulate the hot pipe going into the house to prevent heat loss.
Answered by: Gary
Date published: 2018-12-12
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Customer Reviews

24 kW Self-Modulating 4.6 GPM Electric Tankless Water Heater is rated 4.3 out of 5 by 61.
Rated 4 out of 5 by from The water comes out hot, and takes up little space.... The water comes out hot, and takes up little space. My electrician had trouble getting the 3 large wires in through the small port on the bottom since he was using flexible conduit. The port could be larger. Still waiting for my next electric bill to see what kind of energy savings we are getting.
Date published: 2018-10-31
Rated 5 out of 5 by from I purchased this heater to replace one similar to it (an older model) which stopped working. Sinc... I purchased this heater to replace one similar to it (an older model) which stopped working. Since the wiring and water connections were there already, installation was really easy. In less than an hour, I had hot water back. I installed a 2 gallon per minute flow regulator at the outlet connection to maintain a constant flow rate through the heater, which helps it to maintain temperature more accurately. In northern areas, the incoming water temp is colder, so the flow rate should be decreased accordingly to assure adequate output temperature. In Maine, 2 gal per min is just about right. The flow regulator should always be installed at the hot water outlet of the heater.
Date published: 2018-09-15
Rated 5 out of 5 by from I love having the water heater on demand rather than having wasted electricity all day long just ... I love having the water heater on demand rather than having wasted electricity all day long just heating a tank of water. My husband I stalled it and we were good to go.
Date published: 2018-07-25
Rated 5 out of 5 by from Tankless water heater is great, purchased the ECO-24. It’s the... Tankless water heater is great, purchased the ECO-24. It’s the second one I have purchased one for the condo the other for the house. Should have made the change from hot water tank to tankless water heater years ago. Very satisfied.
Date published: 2018-07-18
Rated 5 out of 5 by from I Installed the 24 KW 2 months ago when my well water was 42 degs. All the faucets are within 15 ... I Installed the 24 KW 2 months ago when my well water was 42 degs. All the faucets are within 15 ft. of the heater and it doesn't take any longer than my old gas tank heater to get hot water. We were surprised and happy on day one and we wouldn't have it any other way today.
Date published: 2018-06-08
Rated 4 out of 5 by from I have a place in the mountains of Arizona, our water coming out of the tap in winter can be down... I have a place in the mountains of Arizona, our water coming out of the tap in winter can be down to 40 degrees and this model does a good job of heating the water. Here are a few notes, 1st it takes awhile to get the hot water flowing so water conservation is not a sales pitch, you won't be saving any water... 2nd with the water that cold, only 1 water source can be used at a time (1 shower, dishwasher, washing machine etc). The good, if you have a big tub it can be filled all the way up, then someone else can take a shower, wash dishes etc and have unlimited hot water.
Date published: 2018-05-01
Rated 5 out of 5 by from My contractor was able to install this in a day.... My contractor was able to install this in a day. Very easy to understand programming and the temperature feature and adjustable dial very accurate. Pleased with the performance of the unit immediately. Small and compact.
Date published: 2018-04-03
Rated 5 out of 5 by from Replaced another manufacturer's tankless water heater that had failed after ten years. This ne... Replaced another manufacturer's tankless water heater that had failed after ten years. This new Ecosmart unit works even better than the previous one I had. Reliable, endless shot water. We installed it ourselves without difficulty.
Date published: 2018-03-27
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