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Questions and Answers for Rheem RETE-27 - 27kW 4.1 GPM Tankless Electric Water Heater

Internet #202514587

Model #RETE 27

Store SKU #452893

  • 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.

Questions & Answers

14Questions
caret
Q:My unit didn't last 2 years and now I don't have hot water... What the heck am I supposed to do w...
by|Aug 25, 2017
2 Answers
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A:  Please see my review of this unit which was just posted (8-25-17) under the name Issis. The Rheem TS / troubleshooting telephone number is: 800-432-8372. Have your SN available (it is on the bottom of the unit under the bar code). If you want to troubleshoot the unit yourself you will need a Digital Multi Meter which will test Ohms (cheapest available is from Harbor Freight - about $8 but you can sometimes get them free). The TS person will tell you what settings to use and where to place the leads to check the electrical input to the unit, the flow meter and the 4 heating elements. You should first check that you have two sets of 60 amp circuit breakers ... (4 total) .. If you want to do it yourself I can send you detailed images of the parts you need to check which might help you work more efficiently with TS. Again, read my review for more details re: the process of checking if the unit failure can be corrected or the unit has to be changed out and the process required to do that. TS should provide you with a Case#, you should provide that & your Unit's SN to the HD store or to the web site from whom you purchased it. They should then confirm that it is under warranty and help you get a replacement unit. If you decide to use a HD / Rheems approved plumber they may be able to hasten the process.

by|May 4, 2023

    A:  For technical and warranty assistance please contact our support line at 800-432-8373

    by|May 4, 2023
      caret
      Q:I was told that this unit would not work in Ohio due to our cold ground water temp. I just put i...
      by|Mar 20, 2017
      1 Answer
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      A:  As long as this serves only your bathroom and you are not trying to run the shower and faucet at the same time, this unit will work.

      by|May 4, 2023
        caret
        Q:what are the out side dimensions of this rate 27
        by|Nov 20, 2016
        1 Answer
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        A:  This tankless electric unit is H - 10.50", W - 11.25", D - 3.25".

        by|May 4, 2023
          caret
          Q:Is there one made for the whole house 2 b/r, 1 w/m, 1 d/w, 3 sinks
          by|Oct 16, 2016
          3 Answers
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          A:  This is the largest of the tankless products we make. This unit is designed for fast, continuous hot water in a bathroom addition/renovation or single shower.

          by|May 4, 2023
            1 found this answer helpful

            A:  would this work for a TH. 2 bedrooms, 2 showers 3 sinks, kitchen sink.

            by|Oct 30, 2018

              A:  I don't think so ... check the Rheem site. It depends on how many outlets you plan to use simultaneously ... and their flow rate demands.

              by|May 4, 2023
                caret
                Q:Will this unit work on a 208volt system?
                by|Sep 10, 2016
                2 Answers
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                A:  Yes is can.

                by|May 4, 2023

                  A:  Yes, but not quite as well as with the full 240 volts. Multiply amps times voltage to see how many Kw worth of performance you will get. 122 times 208 = 25.376 Kw. Still very powerful.

                  by|May 4, 2023
                    caret
                    Q:Is system accessible to connect a sensor button for emergency cutoff if system overheats or due to any threat
                    by|Jul 16, 2016
                    2 Answers
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                    A:  Check with Rheem Tech Support for Tankless WH ... 800-432-8373

                    by|May 4, 2023

                      A:  Your warranty would be voided if any modification would alter the existing design or alter the water heaters functionality.

                      by|May 3, 2023
                        caret
                        Q:Is this system accessible for a isolation valve set to flush vinager to de scale without getting in In house pipes
                        by|Jul 16, 2016
                        2 Answers
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                        A:  Check with Rheem TS for this type unit 800-432-8373

                        by|May 4, 2023

                          A:  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.

                          by|May 3, 2023
                            1 found this answer helpful
                            caret
                            Q:Is this system a self modulating electrical tankless water heater
                            by|Jul 16, 2016
                            1 Answer
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                            A:  Our current tanlkless electric models are not self modulating. But we are looking for a product launch in 2017 where they will be.

                            by|May 3, 2023