0020352592084

Rheem EcoSense

Model RETE 27

Internet #202514587

Store SKU #452893

Store SO SKU #1000114412

RETE-27 - 27kW 4.1 GPM Tankless Electric Water Heater

$649.99 /each
  • Uses energy only when hot water is needed
  • Rugged brass/copper heat exchanger for longer life
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.

Frequently Bought Together

Product Overview

The Rheem EcoSense RETE-27 tankless Electric Water Heater features a rugged brass and copper heater exchanger that is designed to withstand tough water conditions for long life. Its lightweight and compact design enables simple installation in a variety of locations. It is designed to provide hot water for up to two bathrooms in warmer climates or a single bathroom in colder climates. Please click the "More Info" Tab and then "Specifications" to view the Rheem Brochure Guide to assist you in your purchasing decision.

  • Provides a maximum of 5.27 GPM continuous flow at a 35 Degree F temperature rise
  • Designed to provide hot water for applications such as small homes, cottages, condos, apartments, workshops or offices
  • 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
  • 27kW water heater requires 240-Volt electric service, 2 separate 60 Amp breaker(s) and 6-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.



  • Click here for more information on Electronic Recycling Programs

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.

Specifications

Dimensions

Details

Warranty / Certifications

More Products With These Features

Search

Customer Questions & Answers

10 Questions10 Answers

Customer Questions & Answers

RETE-27 - 27kW 4.1 GPM Tankless Electric Water Heater
RETE-27 - 27kW 4.1 GPM Tankless Electric Water Heater

Ask your questions. Share your answers.

 
 
Clear Search Term
 
 
Sort By:
 
1 answer

Is system accessible to connect a sensor button for emergency cutoff if system overheats or due to any threat

This question is from RETE-27 - 27kW 4.1 GPM Tankless Electric Water Heater
Asked by
Read all my Q&A
July 15, 2016
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answer (1)

Asked by
Read all my Q&A
August 2, 2016
Answer: 
Your warranty would be voided if any modification would alter the existing design or alter the water heaters functionality.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
 
1 answer

Is this system accessible for a isolation valve set to flush vinager to de scale without getting in In house pipes

This question is from RETE-27 - 27kW 4.1 GPM Tankless Electric Water Heater
Asked by
Read all my Q&A
July 15, 2016
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answer (1)

Asked by
Read all my Q&A
August 4, 2016
Answer: 
There are no additional ports, connections or valves for this function. You would have to use the inlet outlet ports and external plumbing to do this.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
 
1 answer

Is this system a self modulating electrical tankless water heater

This question is from RETE-27 - 27kW 4.1 GPM Tankless Electric Water Heater
Asked by
Read all my Q&A
July 15, 2016
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answer (1)

Asked by
Read all my Q&A
August 4, 2016
Answer: 
Our current tanlkless electric models are not self modulating. But we are looking for a product launch in 2017 where they will be.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
 
1 answer

Does this unit require a pressure relief valve on system and is it a code compliance feature in San Antonio texas.

This question is from RETE-27 - 27kW 4.1 GPM Tankless Electric Water Heater
Asked by
Read all my Q&A
July 15, 2016
Does this system require 200p panel
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answer (1)

Asked by
Read all my Q&A
August 4, 2016
Answer: 
This Tankless Electric water heater is not required to be equipped with a Pressure and Temperature Relief Valve (PTRV). If the local inspector will not pass the installation without a PTRV, it
should be installed on the hot water outlet side of unit. Consult your local and state codes to see if it is a code requirement there.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
2 »
  • 2016-08-25 T13:33:43.298-05:00
  • bvseo_lps, prod_bvqa, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasquestionsanswers
  • loc_en_US, sid_202514587, prod, sort_default
2 »
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 104ms
  • QUESTIONS, PRODUCT

Customer Reviews

Rated 3.3 out of 5 by 38 reviewers.
Rated 1.0 out of 5.0 by DOA... Despite other reviews that I read before buying this unit, I purchased it anyway as it seemed like the best value for the money. I needed a tankless water heater powerful enough to run 2 full bathrooms (showers and baths simultaneously) and based on the wattage and GPM it seemed that this would be sufficient. I had to special order this unit from Home Depot, as they didnt have it in stock. It took about 2 weeks to arrive. After receiving the unit I installed it, it was very easy to do and took less than an hour to get the unit hung, and connected to the power and pipes (I already had power and piping from our previous water heater. The final moment of truth - no hot water. The units green light was on, but when we opened the valves we didnt get any hot water. Checked the connections again - and still nothing. Called in our electrician to make sure that there wasnt something wrong in our box or on the circuit to the water heater. The electrician found no issues, and concluded that the issue was the water heater. Removed the water heater, and contacted home depot. Was told it would take 2 more weeks to get a replacement. I ended up purchasing a different (smaller) point of use water heater from another retailer - couldnt wait 2 more weeks for hot water and returning the defective unit. Buyer beware - these water heaters have a reputation for not working as intended - and lots of DOA's. Check the online reviews. May 10, 2016
Rated 5.0 out of 5.0 by Electric Tankless Hot water heater We hired an electrician and a plumber to be sure the tankless water heater was installed to specifications. Installation went without a hitch. We have plenty of hot water. Very good product. February 18, 2016
Rated 5.0 out of 5.0 by Easy, Easy, Easy Works great for my 2 bath house. Solar installed and bill is still zeroed out. Gas bill cut in half. I installed the unit myself, wiring and plumbing. I don't do these for a living but have an understanding and respect. I had to adjust the flow for the faucet for my tub. 2 showers work great. More room in garage now! September 24, 2013
Rated 5.0 out of 5.0 by Good product My previous unit's manufacture is no longer in existence so I was not able to obtain replacement parts for it. Therefore, I chose a company that has been around for a long time. Another reason I purchased this unit was because it required very little flow rate to it to start and continue to heat water. This is a helpful feature if you need to have a small amount of water running for a long time. The only curious thing was the manual stated it required no maintenance but a paragraph later said it would last longer with preventive maintenance. Then, it never said what that the maintenance involved nor how to do it. When I plumbed the unit, I did so with cutoff valves before and after the unit. I also included two other valves so that I can "descale" the unit in place. The installation was relatively easy. I already had the electrical service to the unit and only had to change the breakers to match. This unit required fewer circuits (2) than my previous unit (4). Of course, the plumbing had to be modified. February 3, 2013
Rated 5.0 out of 5.0 by Wonderful Working great and very glad I made the decision to install even though very few people had any real knowledge about this product which I had to research on my own. Makes plenty of hot water in my condo, very efficient and is saving me money, too, October 22, 2015
Rated 1.0 out of 5.0 by Takes to much power Takes to much power when operating. Trying to get the power company to run bigger overhead lines in order to satisfy this unit. I would not recommend this product to anyone save yourself the headache and install a gas heated one July 21, 2015
Rated 5.0 out of 5.0 by best thing i've bought in years. works great and never runs out. i bought the 27k electric rheem tankless water heater in feb. the installation was easier than expected. the hardest part was working with the 6 gage wire. don't try wire nuts, use the wire clamps that can be tightened. you should also use a large enough box to give space to work with the wiring and keep the clamps from touching. the plumbing is a piece of cake. be sure and put a shutoff on the cold water line just before it goes into the tank. after the plumbing ts done, let all of the hot water lines run for a few minutes to bleed the air and check for leaks. now you can let the wife go shower without her complaining about running out of hot water. March 27, 2012
Rated 2.0 out of 5.0 by So far, not happy... The inelt and outlet pipes were soldered into the unit crooked, which means we had to mount the unit on the wall crooked and do some fancy piping to get it to line up (not great for my OCD husband). Heats at sink faucets well (up to about 120 degrees F), but even at the lowest possible pressure, with only hot water on, the shower is luke warm at best - and we have low flow showerheads! This is with only the shower running. Ughh. I bought the biggest, baddest unit (RTE 27) and I can't even get a hot shower. I'm going to give it a day or two to see if it needs to be "broken in" (our previous unit improved after a couple of days), then I'm taking it out and returning it. November 21, 2011
  • 2016-08-15 T11:57:43.204-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_38, tr_38
  • loc_en_US, sid_202514587, prod, sort_default
2 >>
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 98ms
  • REVIEWS, PRODUCT