Model # RETE 7

Internet #202514579

Store SKU #452526

Store SO SKU #1000114380

Rheem EcoSense RETE-7 - 7kW 0.21 GPM Point of Use Tankless Electric Water Heater
0020352591629

Rheem EcoSense

RETE-7 - 7kW 0.21 GPM Point of Use Tankless Electric Water Heater

  • Same-day installation in most areas. Call 1-855-400-2552 by noon.
$171.00 /each

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Product Overview

The Rheem EcoSense RETE-7 Point of Use Tankless Electric Water heater features a rugged brass and copper heat exchanger that is designed to withstand tough water conditions for long life. Its lightweight and compact design saves space and enables simple installation in a variety of locations. It is designed to provide hot water a single bathroom in warmer climates. Please click the "More Info" Tab and the "Specifications" to view the Rheem Brochure Guide to assist you in your purchasing decision.

California residents: see   Proposition 65 information

  • Provides a maximum of 1.37 GPM continuous flow at a 35°F temperature rise
  • Designed to provide continuous hot water at a single point-of-use faucet
  • Flow rate provided by a tankless electric water heater is dependent on the difference in temperature of the incoming cold water supply and the desired hot water delivery temperature
  • 7kW water heater requires a 240-Volt electrical service, a dedicated 30 Amp breaker and 10-Gauge copper wiring
  • Energy efficient, uses hot water only when needed
  • On-unit temperature controls and LED lights indicate active elements and system operation
  • Modulating control adjusts power consumption to meet the required hot water temperature and flow rate
  • Rugged brass and copper heat exchanger is designed to withstand tough water conditions for long life
  • Lightweight and compact design saves space and enables simple installation in a variety of locations
  • Requires 240-Volt electrical connection
  • Equipped with 1/2 in. water connections for easy installation
  • Modulating Control adjusts power consumption to meet the required hot water / temperature flow rate

    How to Choose Your Rheem EcoSense Tankless Electric

    Choose your application, ie. shower, bath tub or vanity sink-faucet, kitchen sink faucet or washer. See chart below.

    For example: you choose a kitchen sink faucet.


    See application chart below and locate your flow rate. For example: your flow rate is 1.5 gpm.


    On the map, locate the average water temperature in your area.

    For example: your water temperature (in Atlanta) is 55°


    Use the water temperature and flow rate chart to determine the model you need.

    For example: 1.5 gpm flow rate + 55° = RETE 9.



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Customer Questions & Answers

8 Questions12 Answers

Customer Questions & Answers

RETE-7 - 7kW 0.21 GPM Point of Use Tankless Electric Water Heater
RETE-7 - 7kW 0.21 GPM Point of Use Tankless Electric Water Heater

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3 answers

Is this heater 110v/220v? or atomic volts

This question is from RETE-7 - 7kW 0.21 GPM Point of Use Tankless Electric Water Heater
Asked by
Brooklyn NY
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July 24, 2015
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Answers (3)

Asked by
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November 9, 2015
Answer: 
This water heater requires a 240-Volt electrical service.
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Asked by
Orlando FL
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September 26, 2015
Answer: 
220v
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July 25, 2015
Answer: 
This is a 240-v unit.
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2 answers

How long is the attached power cord?

This question is from RETE-7 - 7kW 0.21 GPM Point of Use Tankless Electric Water Heater
Asked by
Pernitas Point Texas
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March 16, 2016
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March 21, 2016
Answer: 
The chord is approximately 2 to 3 FT long.
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March 17, 2016
Answer: 
This unit comes with a Pre-wired 2-foot power supply cord.
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2 answers

can this work for two bathrooms

This question is from RETE-7 - 7kW 0.21 GPM Point of Use Tankless Electric Water Heater
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November 14, 2015
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Asked by
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November 30, 2015
Answer: 
If this tankless unit is just used for hand washing in sinks this will work. If trying to supply a shower or bath you would need a much larger unit.
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Asked by
Orlando FL
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November 15, 2015
Answer: 
If your existing Water Heater is supplying both, then yes.
However, it is a 1/2" pipe and a gallon per minute restriction.
The shower running in both bathrooms at once will be sketchy.
I would NOT do it.
I would put one in each bathroom, and never run out of hot water.
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1 answer

How I Get Hot Water From My RETE-7.

This question is from RETE-7 - 7kW 0.21 GPM Point of Use Tankless Electric Water Heater
Asked by
Tujunga Ca
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June 4, 2016
Green Light (standby ) Is On & There Is No Hot Water. What Shall I Do.? Please Help.
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August 5, 2016
Answer: 
Unfortunately, the issue could be somewhat involved and any resolution will depend on the answers to questions I have for you. My best recommendation is for you to speak to one of the technical analysts at the number below.
800-431-1549 – 7 to 7central time, 7 days a week, this includes weekends and holidays.
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Customer Reviews

RETE-7 - 7kW 0.21 GPM Point of Use Tankless Electric Water Heater is rated 3.3 out of 5 by 29.
Rated 4 out of 5 by from Electrician help. So far everything is good, it has its trick: it opens all the hot water first a... Electrician help. So far everything is good, it has its trick: it opens all the hot water first and with the cool it graduates.
Date published: 2017-01-04
Rated 4 out of 5 by from Good for 1 sink if incoming water is not too cold I installed the 7kw heater to boost the water temperature at a sink in the garage, far from our main water heater. It does the job; no more waiting for the water to warm up to wash my hands (or using freezing cold water). This heater may not be adequate if your groundwater is cold or you need a high flow rate (shower, dishwasher). Our groundwater comes in at 45˚F and this unit is not able to make it hot without help from our main water heater. But as a booster for the sink it works great. It activates at a low flow rate, so you don't need to run a lot of water to have it hot. It is compact and fairly easy to install. It fit in the cabinet under the sink. There were, however, no instructions for the electrical connection; I was initially confused by the wiring. The unit comes with a short cable out of the bottom so you don't need to open it up to connect the wiring. The cable had three wires—black, white and bare (ground). I always thought white was neutral, but in this case it is the other hot (usually red). Since it is a straight 240V appliance, it doesn't use a neutral, just the two hots and ground. Once I figured this out, installation was straightforward. The 7kW unit draws 29 amps, so it requires heavier wiring and a dedicated circuit; I converted a 30A circuit that was previously used for an electric dryer. I would recommend this for a single sink if your incoming water is not too cold and you don't need high flow rates. If you need more than this, then you should consider a bigger unit.
Date published: 2011-11-16
Rated 3 out of 5 by from Lukewarm Review Provides adequate warm-hot water depending on the temp of the supply water. If the supply water is very cold you get lukewarm water. When the supply in not very cold you get warm-hot water. It is being used to supply hot water to a bathroom sink that is primarily used for occasional hand washing Hopefully it will save money over the 5 gal elec water tank that was in a cold overhead/attic.
Date published: 2011-05-03
Rated 4 out of 5 by from Better than expected. I live in Orlando FL and I installed this in my main bathroom. I was told it was NOT going to work. My power service is only 240/30 so I could not go larger. I have it set to the highest heat level. In the dead of winter (Freezing Temps.) you can hold your hand under full hot water and not burn you. But still take an unlimited length shower with the faucet half way between hot & cold, enjoying the warmth.
Date published: 2015-09-27
Rated 3 out of 5 by from Delivers warm water at reduced volume I purchased this product because I wanted to do a simple replacement of the old water heater without wiring in a new line for a higher amperage requirement tankless water heater. This was rated at 30 amps, which is the same as my old one. Installation was easy, but you need to buy adapters because this has a 1/2" feed while the standard water heater uses 3/4" pipe. The water is mildly hot at the highest setting of the thermostat. I live in Hawaii, so if you live in a cold clime don't expect to get hot water. Also, the water flow is reduced because of the smaller pipe. If you have a large family, this is not the right choice. Overall, I would rate it as average.
Date published: 2013-10-09
Rated 1 out of 5 by from A Piece of junk The water temp cannot be set above medium without the thing shutting off. Difficult to reset. Water temp varies greatly while it is running. When you mix in cold water at the tap the hot water heater shuts off. I would never, ever recommend this to anyone!
Date published: 2013-01-12
Rated 1 out of 5 by from After a couple of weeks the heater died. After a couple of weeks the heater died. The wire, breaker amp and voltage all fell within limits and because I bought the heater online, I have to wait 4 business days before a relacement arrives.
Date published: 2011-08-31
Rated 5 out of 5 by from Good Heater Installed in a guest cottage in south Texas. Also installed a 1.25 gpm shower head. Supplies enough hot water for this shower.Was able to instal using the 30 amp service from old heater.
Date published: 2015-02-11
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