0764177430922
Discontinued

MAREY

Model ECO210

Internet #205212490

4.5 GPM 21 kW Electric Tankless Water Heater

This item has been discontinued.
The Home Depot no longer carries this specific product.

  • High Technology to not accumulate sediments: long life time
  • Built with German technology with Patent design heating elements
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.

Frequently Bought Together

Product Overview

The MAREY ECO210 electric tankless water heater was designed with high-quality parts and components, including a patented heating element and a stainless steel cover. The water instantly heats as it pipes through the heater, delivering instant and endless hot water. It is also called water heater on demand, as the heat exchanger turns on using electricity only when the hot water is running. An external digital control panel allows you to easily adjust the water temperature to be set at your desired output temperature, no matter the water flow.

  • The unit has to be installed by a certified professional
  • Smart technology avoids the excess temperature waste to any hot water point of use
  • Digital panel allows the setup of the output water temperature
  • Digital panel allows the setup of the output water temperature
  • Only in the market that doesn't get sediments
  • Built with German technology
  • Patent design heating elements that do not accumulate sediments (long life time)
  • Provide endless hot water on demand and only as needed
  • Compact design saves space and is easy to install almost anywhere
  • Unlimited hot water whenever is needed
  • ETL approved
  • Our units use SMART technology by only applying the power need to heat the water to the desired temperature, maximizing energy savings
  • Corrosion resistant heating elements, reduces hard water build up due to chlorine and calcium
  • Determine the proper Tankless Water Heater for your household by using our buying guide

    Marey Tankless Water Heater

  • Use our temperature map to calculate your Gallons Per Minute

    Marey Tankless Water hEater Temperature Map

  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Warranty / Certifications

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Customer Questions & Answers

6 Questions5 Answers

Customer Questions & Answers

4.5 GPM 21 kW Electric Tankless Water Heater
4.5 GPM 21 kW Electric Tankless Water Heater

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2 answers

Wanted to ask Jerry of TX, where he hooked up the liquid propane to this electric heater?

This question is from 4.5 GPM 21 kW Electric Tankless Water Heater
Asked by
springfield,mo
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October 7, 2015
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Asked by
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April 27, 2016
Answer: 
He hooked propane to his concession trailer, not the water heater.
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December 30, 2015
Answer: 
I do not own, yet i searched the whole page and found nowhere saying this one uses propane?
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1 answer

We have very hard water

This question is from 4.5 GPM 21 kW Electric Tankless Water Heater
Asked by
Cochran, GA
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February 21, 2016
I have heard you have to have a filter for these type of hot water heaters. Where is the filter on this unit or does it have one, or do you have to purchase one and attach it. If so, where do you buy it and how do you attach it. I was also told you have to flush them twice a year. How do you do this and does it make a difference in where you install them since it seems you would have to backwash them somehow. I just don't understand how to maintain them, and I don't want to ruin a new unit with hard water scale that can be prevented . Please someone help me.
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Answer (1)

April 13, 2016
Answer: 
Thank you for your recent inquiry with The Home Depot, Trouble. This water heater has a inlet strainer, but use of a filter, such as 5 GPM 0.75 in. Water Heater Shield Internet # 205893637 is recommended. We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot.
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1 answer

Does this heater use 110 or 220 electricity?

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December 30, 2015
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Answer (1)

January 24, 2016
Answer: 
This unit runs on 240V electricity.
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1 answer

Does Home Depot install ta21 kW 3.5 GPM Electric Tankless water heater?

This question is from 4.5 GPM 21 kW Electric Tankless Water Heater
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Cambridge, NY
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September 28, 2015
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October 7, 2015
Answer: 
Dear Valued Customer,
Thank you for your recent inquiry with The Home Depot. Please call us at 1-855-650-2786 for pricing and availability. I've also included the following link for additional installation details. Thank you for shopping Home Depot.
http://www.homedepot.com/webapp/catalog/servlet/ContentView?pn=SV_HS_Water_Heaters&storeId=10051&langId=-1&catalogId=10053
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