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Internet # 300800566

Model # RETEX-13

Store SKU # 1002624309

Performance 13 kW Self-Modulating 2.54 GPM Tankless Electric Water Heater

$299.00
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  • Provides continuous hot water for point-of-use applications
  • Small, compact design fits under sinks and in cabinets
  • Tankless water heater requires 1 x 60 amp double pole breakers
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Product Details

About This Product

Save energy and costs with this Rheem Performance Tankless Electric Point-of-Use Water Heater. This compact heater can be installed under a cabinet or sink in your office, home, RV or boat. It uses a 1 x 60 amp double pole breaker to give you continuous, on-demand hot water when needed. This tankless water heater requires professional installation. It's covered by a five-year heat exchanger and one-year parts limited warranty.

Highlights

  • Energy and cost savings: heats water only when it is needed for savings of up to 50% on water heating costs when used in a point-of-use application
  • Instant, continuous hot water: instantly provides ample hot water for up to two showers (review selection guide below to confirm this water heater will provide the hot water needed based on your geographic location)
  • Space savings: small, compact design fits perfectly in tight places like under cabinets and sinks
  • Great investment and value: energy cost savings and a five-year heat exchanger and one-year parts limited warranty
  • Easy to adjust: electronic temperature control adjustable in 1-degree increments from 80-140 degrees F with easy-to-read display (Celsius and Fahrenheit compatible)
  • Easy installation: compatible with 1/2 in. water connectors for flex hose installation and no venting or T and P valve required for easy installation (professional installation recommended)
  • Easy to maintain: durable, easy-to-replace heating elements
  • A reliable hot water solution from Rheem, the global leader in water heating
  • Before purchase and installation, please verify that you have the proper electrical requirements for your chosen heater
  • ETL Listed to UL-499 and CAN/CSA-C22.2 No. 64
  • Check out our buying guide on water heaters
  • What tankless water heater is right for you?
  • Click here for more information on Electronic Recycling Programs
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 300800566

Model # RETEX-13

Store SKU # 1002624309

Specifications

Dimensions: H 12 in, W 8.25 in, D 3.625 in

Dimensions

Product Depth (in.)

3.625 in

Product Height (in.)

12 in

Product Width (in.)

8.25 in

Water Connection Size (in.)

1/2 in NPT adapter included

Details

Amperage (A)

54 A

Application Type

Residential

Electricity Phase

Single Phase

Finish Family

Gray

First Hour of Delivery (gallons/hr)

152

Flow Rate @ 35°F Rise (gallons/min)

2.54 gal (US)/min

Flow Rate @ 45° Rise (gallons/min)

1.97 gal (US)/min

Flow Rate @ 55° Rise (gallons/min)

1.61 gal (US)/min

Flow Rate @ 65° Rise (gallons/min)

1.37 gal (US)/min

Fuel Type

Electric

Heat Exchanger Warranty

5 Year

Indoor/Outdoor

Indoor

Maximum Temperature (F)

140 F

Minimum Activation Rate (gpm)

0.25

Minimum Temperature (F)

80 F

Number of Elements

2

Number of Showers

1-2

Pack Size

1

Product Weight (lb.)

7 lb

Required Volt Connection

240 volt

Returnable

90-Day

Uniform Energy Factor

0

Water Heater Features

Wall Mounted

Wattage (watts)

13000 W

Warranty / Certifications

Certifications and Listings

CSA Listed, ETL Listed, UL Listed

Labor Warranty

No Warranty

Part Warranty

1 Year

Questions & Answers

1198Questions
caret
Q:please help, i have a electric 240v tank water heater, considering upgrading to one of these. water heater volt reading is 208 though. will this be an issue changing to these type of models?
by|Apr 18, 2024
0 Answer
Answer This Question
caret
Q:Does the 240 volt heater require 3 or 4 wires?
by|Apr 14, 2024
1 Answer
Answer This Question

A:  Hello Antonio, The RETEX-08 requires 3 wires. Black, Red, and Green(Ground). Isaiah

by|Apr 15, 2024
    caret
    Q:Would this work for a jacuzzi tub
    by|Apr 12, 2024
    0 Answer
    Answer This Question
    caret
    Q:Building a bunkhouse with only 1 bathroom (tub/shower and lavatory). Looking at either RETEX-13 or RETEX-18. Which would be a better unit? Can they be installed in the attic? If installed in the bunkhouse, how much heat do they emit? Thanks
    by|Apr 12, 2024
    1 Answer
    Answer This Question

    A:  Hello Paul, These units may be installed in an attic as long as it is installed on a solid and secure surface in an upright and level position. To determine the best model for you, please refer to the sizing information provide in the Specification Sheet. It will provide you with estimated performances based on incoming water temperatures. Isaiah

    by|Apr 15, 2024
      Showing 1-4 of 1,198

      Customer Reviews

      3.9 out of 5

      • 3.9 out of 2,321 reviews
      • 62% recommend this product
      Filter by:
      Showing 1-10 of 2,321 reviews
      Did not heat the water to set temperature. Not impressed. Looking for other options. Box was damaged on arrival.
      by
      • Verified Purchase
      This water heater lasted 1 year and 2 weeks!
      Our first electric tankless was an ECO-18 and it lasted 3 years. I bought this one from Home Depot on 3/28/3024 and installed the same day. It worked great for 1 year. It has a 1 year warranty on parts. It was 2 weeks out of warranty when it died yesterday.
      by
      Response from RheemApr 16, 2024
      Hello James,

      We are sorry to hear about the issue with your water heater. It’s unfortunate that it stopped working just after the warranty period.

      You might want to contact the technical support team to see if they can provide any assistance. Our Technical Support team may be willing to help even if the warranty has just expired.

      In the future, you may want to consider purchasing an extended warranty for such appliances.

      Also, regular maintenance and proper use can extend the life of such appliances. Make sure to follow the use and care instructions for proper use and maintenance.

      We hope this helps and you get your water heater issue resolved soon.

      For additional assistance, please call 800-374-8806 between the hours of 8 A.M. and 5 P.M. EST Monday through Friday.

      Derius rheem
        • Recommended
        1 found this review helpful
        The first product I received was refurbish. And that was mailed to my home the second time. I got it. I had it shipped straight to home depot and it was a brand new one, home depot online helped with it. And gave me a refund. The sandusky home depot was very unhelpful, So the reason for the bad rating and customer service is due to home depot in sandusky
        by
        Response from RheemApr 4, 2024
        Richard,

        We are sorry to hear about the issues you faced with the delivery and customer service at your local Home Depot in Sandusky. It’s unfortunate that the first Performance 27 kw Self-Modulating 5.27 GPM Tankless Electric Water Heater you received was refurbished. However, we are glad to hear that Home Depot online was able to assist you and provide a refund. Your feedback is important and can help improve the overall service.

        Derius rheem
        • Verified Purchase
        E5 code error
        I was soo happy on getting this install, ran my wires, panel update, all good, love the feeling of having this mount taking no space, too good to be true, but seem that my small house isn’t small enough for it I have to keep for now the hot water line half open to avoid trigger the E5 code error ( too much water flow) been that the tank is literally no even 8’ from shower to trigger that, now I have to figure how to fix this, I have 3 faucets, 1 shower and wash machine and is water well system
        by
        Response from RheemApr 4, 2024
        Hi,

        Thank you for your feedback. We are sorry to hear about the issues you’re experiencing with your water heater. It’s unfortunate that you’re having to deal with the E5 code error due to too much water flow. We understand how frustrating this can be, especially when you’ve put in the effort to install the unit and update your panel. If you have any questions or need assistance with anything, feel free to call 800-374-8806 between the hours of 8 A.M. and 5 P.M. EST Monday through Friday.

        Derius rheem
          Rheem performance 36kw insta hot
          I purchased this whole house insta hot system to replace my old hot water heater. Had a professional electrician install it. It takes four 40 amp breakers to power it. My first unit would not power on. Entire weekend with no hot water. Purchased the same unit and it works. But, the hot water pressure is very poor. The water is hot but not much flow. Had plenty of flow with the 21 year old hot water tank but the new Rheem insta hot not so much. Did I tell you I purchased the largest insta hot Rheem makes! I should have got a new hot water tank. Buyer beware.
          by
          Response from RheemMar 22, 2024
          Jimmie,

          We are sorry to hear about the issues you’re experiencing with your water heater. It’s indeed frustrating when a new product doesn’t meet our expectations.

          Low water pressure can be due to several reasons. It could be related to the plumbing in your house, or it could be an issue with the unit itself. A few things you might want to check are for any blockages in your plumbing, the flow rate settings on your unit itself, review the installation itself, and you can always contact the Technical Support team for additional assistance. Please contact, 800-374-8806 between the hours of 8 A.M. and 5 P.M. EST Monday through Friday.

          We hope this helps, and your issue gets resolved soon!

          Derius rheem
            Buyer beware
            We purchased and installed one of these about two and a half years ago. Had no issue until this week. One of the heating elements disintegrated. Once the heating element broke apart, the small pieces and parts ran through all of the hot water system. Thankfully the filters for the washing machine and dishwasher prevented the debris from destroying the inlet valves. But the pieces and parts did destroy two faucets. Damage costed a couple thousand. I do not recommend this product at all.
            by
            Response from RheemApr 2, 2024
            Hi,

            We are really sorry to hear about your experience with the water heater you have reviewed. It’s unfortunate that the heating element disintegrated and caused damage to your faucets. Your feedback is valuable and it’s important to help us be aware of these potential issues. If you haven’t already, we would recommend reaching out to our Technical Support team at 800-374-8806 between the hours of 8 A.m. and 5 P.M. EST Monday through Friday for possible solutions or compensation for the damage caused. If you need any assistance with this process or have any other questions, feel free to ask our experienced technicians.

            Derius rheem
              3 found this review helpful
              Defective
              We bought this and had it installed by our contractor. When it came time to test it out, it would not work at all. Our contractor did the runaround with customer service to figure out what the problem was and they determined that the unit was just defective when we received it. Waste of time.
              by
              Response from RheemApr 2, 2024
              Taylor,

              Thank you for this review. We are sorry to hear about your experience. It’s unfortunate that the unit you received was defective. The water heater you have reviewed is generally known for its energy efficiency and consistent hot water supply. It’s designed with self-modulating technology that adjusts energy based on your hot water needs. However, like any product, there can be instances where a unit may have issues.

              We would recommend reaching out to the Home Depot or our Technical Support team for a replacement or refund, especially if the product recently purchased. They should be able to assist you with the next steps. We hope your issue gets resolved soon. Please contact 800-374-8806 between the hours of 8 A.M. and 5 P.M. EST.

              Derius rheem
                1 found this review helpful
                DO NOT BUY - BOUGHT MARCH 2023 DIED IN 11 MONTHS
                Bought March 2023 - Rheem will give you the run around if you call them for the warranty. Have you test the unit, open it up. Test the voltage and do all kinds of things. When it still does not work they will say that a supervisor has to call you in 24 hours to see if they can exchange or repair the unit. In additions they say you have to service the unit every 3 months?!?!? Garbage. Never again will I buy a Rheem product.
                by
                Response from RheemApr 2, 2024
                Hi,

                We are sorry to hear about your frustrating experience with the water heater you have reviewed. It’s essential to have reliable appliances, especially when it comes to something as crucial as hot water.

                A reliable water heater should perform consistently and efficiently.
                Remember that individual experiences can vary, but it’s essential to consider both installation and usage needs when making purchasing decisions. If you need further assistance, or have additional questions, please contact 800-374-8806 between the hours of 8 A.M. and 5 P.M. EST Monday through Friday.

                Derius rheem
                  3 found this review helpful
                  FAULTY + DANGEROUS
                  Purchased and installed one, it was faulty upon installation. Purchased a second (space to install was limited and had to get something off the shelf to give tenants a quick fix). Tenant constantly complained about insufficient hot water, then it caught fire within 4 months. In summary, it won’t work and/or it’ll catch fire.
                  by
                  Response from RheemApr 4, 2024
                  Makenzi,

                  Thank you for taking the time to write this review. We are really sorry to hear about your experience. It’s concerning to hear about the issues you’ve faced, especially the fire incident. We hope everyone is safe. Your feedback is important and can help correct issues. If you need any further assistance, please call 800-374-8806 between the hours of 8 A.M. and 5 P.M. EST Monday through Friday.

                  Derius rheem
                    3 found this review helpful
                    Copied ecosmart at higher price
                    This Rheem 13kw is $100 more than the Ecosmart 13kw. But it’s exactly the same behind the grey cover! I know because I had to remove the electric cord from the Ecosmart and reuse on the Rheem. The power cord came with the Ecosmart too as the “void” sticker wasn’t broke on the cover as it wasn’t removed to install new. So for $100 more you don’t even get a power cord! The Ecosmart lasted 5+ years so at least the rheem selling a good copy.
                    by
                    Response from RheemApr 1, 2024
                    Dale,

                    Thank you for sharing your experience. It’s interesting to hear that the Rheem 13 kW Self-Modulating 2.54 GPM Tankless Electric Water Heater and the Ecosmart 13 kW model appear to be similar in design.

                    Both brands have their own strengths. Rheem is known for its energy efficiency and consistent temperature control, while Ecosmart is praised for its patented self-modulating technology and energy savings.

                    It’s always important to consider various factors such as price, included accessories, energy efficiency, and longevity when choosing a water heater. Your feedback will be helpful for others who are considering these products. If you have any other questions or need further assistance, feel free to contact 800-374-8806 between the hours of 8 A.M. and 5 P.M. EST Monday through Friday.

                    Derius rheem
                      4 found this review helpful
                      Showing 1-10 of 2,321 reviews

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