#1 Home Improvement Retailer

Customer Reviews for Rheem Gladiator 40 Gal. Medium 12-Year 4500-Watt Double Element Smart Electric Water Heater w/ Leak Detection and Auto Shutoff

Internet #309627138

Model #XE40M12CS45U0

Store SKU #1004435913

  • Built-in leak detection and auto shutoff protects your home
  • Built-in Wi-Fi enables control and monitoring at home or away
  • Restricted in Demand Response States: See below before purchasing

Customer Reviews

  • 4.3
    out of 8,459 reviews
  • 74% recommend this product
Filter by:
Showing 1-30 of 8,459 reviews
Rheem brand water tank it's a excellent product
Very satisfied with Rheem Performance electric 50 water tank working excellent. I recommend this product
by
Response from RheemFeb 14, 2023
Hi,

Thank you for this 5-star review! We are glad that your new water heater is working excellent for you. If you need assistance with your water heater, please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST.


Derius rheem
  • Verified Purchase
  • Recommended
Too early to tell whether this water heater is a...
Too early to tell whether this water heater is a 5 star rating. Install was easy, setup was easy, seems to work well but it's only been a month since it was installed. Hopefully the 12 year warranty will keep me from buying another one for a while!
by
Response from RheemFeb 3, 2023
Hi,

Thank you for this 4-star review! We are glad that installation was simple and easy for you. If you need assistance with your water heater, please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST.


Derius rheem
  • Verified Purchase
1 found this review helpful
garbage
Thermopile not Thermocouple: Thermocouples are better and fail less. Sell replacement thermopiles at Home Depot? Of course not just thermocouples Plastic drain: In store cost $1 less than metal ones that never break which means it cost Rheem 10c less to install these Anode rod not magnesium: Why have ones that are healthy for you let alone are not neurotoxic? Because they want folks to be out of it enough to keep buying trash. Pressure valve: You get 5 uses before it leaks uncontrollably
by
Response from RheemJan 27, 2023
Hi,

Thank you for this review. We apologize for the inconvenience you have experienced and hope the issue has been resolved. The water heater that you have reviewed includes a 6-year parts and tank warranty, as well as a 1-year labor warranty for your convenience. If you still need assistance, please call Technical Support at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST and one of our experienced analysts will be happy to assist you.

Derius rheem
    12 found this review helpful
    Garbage
    Thermopile not Thermocouple: Thermocouples are better and fail less. Sell replacement thermopiles at Home Depot? Of course not just thermocouples Plastic drain: In store cost $1 less than metal ones that never break which means it cost Rheem 10c less to install these Anode rod not magnesium: Why have ones that are healthy for you let alone are not neurotoxic? Because they want folks to be out of it enough to keep buying trash. Pressure valve: You get 5 uses before it leaks uncontrollably
    by
    Response from RheemJan 27, 2023
    Hi,

    Thank you for this review. We apologize for the inconvenience you have experienced and hope the issue has been resolved. The water heater that you have reviewed includes a 6-year parts and tank warranty, as well as a 1-year labor warranty for your convenience. If you still need assistance, please call Technical Support at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST and one of our experienced analysts will be happy to assist you.

    Derius rheem
      3 found this review helpful
      In as much as my first Rheem heater only lasted...
      In as much as my first Rheem heater only lasted 3 years, it’s premature to rate this one. My first started a fire. The thermostat failed and caused a fire melting plastic and foam. It was warranted but it cost me 300 dollars to get the new one installed.
      by
      Response from RheemMar 8, 2023
      Hi Stephen,

      Thank you for taking the time to write this review. We apologize for the inconvenience you have experienced because of the failed thermostat on your water heater hope the issue has been resolved. The water heater you have reviewed includes a 6-year parts and tank warranty. If you still need assistance, please call Technical Support at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST and one of our experienced analysts will be happy to assist you.

      Derius rheem
      • Verified Purchase
      1 found this review helpful
      Nothing but a headache so far
      Hot water heater came out of the box completely dented up. Then there was a leak at the top of the unit when it was installed by the plumber. He installed it and we had to leave for an overnight trip. When we got home, no hot water. He came and did something, which made it work for thirty minutes before it blew the 15amp fuses. HD was closed so now this morning we're going to get 20 amp fuses and see what happens. This isn't over yet. I'm sure if it.
      by
      Response from RheemJan 23, 2023
      Hi,

      Thank you for this review. We apologize for the inconvenience you have experienced because of the performance on your water heater and hope the issue has been resolved. If you still need assistance, please call Technical Support at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST and one of our experienced analysts will be happy to assist you.

      Derius rheem
        10 found this review helpful
        Design or manufacturing flaw?
        Tank drain and pressure relief are 180° out placing the tank with the drain away from the wall means rthe presure relief is against the wal ad you can't place a bucket under it to drain the suggested "severa gallons" of water. I had to construct a pipe system using 1/2" PVC with mutiple elbows to brng the water around to my utility sink added hours to the install.
        by
        Response from RheemJan 19, 2023
        Hi Jim,

        Thank you for this review! We apologize for the inconvenience you have experienced while installing your water heater. If you need assistance with your water heater, please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST.


        Derius rheem
        • Verified Purchase
        3 found this review helpful
        Do not buy this brand
        This is not good im not happy with my water heater. It leaks to much is not normal
        by
        Response from RheemJan 19, 2023
        Hi Syle,

        Thank you for taking the time to write this review. We apologize for the inconvenience and hope the issue has been resolved. If you still need assistance, please call Technical Support at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST and one of our experienced analysts will be happy to assist you.

        Derius rheem
          3 found this review helpful
          The worst product I have ever seen
          The first one leaked and caused the trip of breaker and got second one replaced after dozens of calls. But the second leaked from the inside and behind the LED panel. We have to open the cover to check the sponges all the time. This is the replacement and we just go it in a week. This is an absolutely deficient model or the company is ruining their reputation with deficient products.
          by
          Response from RheemJan 4, 2023
          We sincerely apologize for the inconvenience and would like to speak with you in greater detail about your customer service request. I will be reaching out to you the email address you have provided and look forward to speaking with you soon.

          Jennifer rheem
            6 found this review helpful
            Here's the fix if your brand new heater leaks too
            Brand new heater had a leak. Rheem phone support suggested I check the factory-installed anode rod. This rod should be installed with about 75 foot pounds of torque, but after I dug out the insulation, I found the factory never tightened the anode rod - it was finger tight! Partially drained tank, removed rod, teflon taped the threads, and reinstalled, and all good. Horrible quality control, clearly was never pressure tested at the factory. Kudos for their phone support though.
            by
            Response from RheemDec 28, 2022
            Hi Jerry,

            We apologize for the inconvenience and hope the issue has been resolved. If you still need assistance, please call Technical Support at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST and one of our experienced analysts will be happy to assist you.

            Derius rheem
              6 found this review helpful
              Leaking Junk!!
              Bought Rheem because I thought they were top quality…boy was i wrong. Due to factory defects, it cost me almost double the normal labor because a plumber had to come out numerous times!! Leaking pressure valve, leaking inlets, leaking heating elements!! Ridiculous!! These are garbage…now ive gotta take it back and pay to have another new unit installed!!!
              by
              Response from RheemDec 8, 2022
              Hi,

              We apologize for the inconvenience and hope the issue has been resolved. If you still need assistance, please call Technical Support at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST and one of our experienced analysts will be happy to assist you.

              Derius rheem
                6 found this review helpful
                Perfect....
                Perfect.
                by
                Response from RheemNov 18, 2022
                Hi,

                Thank you for this 5-star review! If you need assistance with your water heater, please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST.


                Derius rheem
                • Verified Purchase
                Less then Three weeks old
                Bought our electric Rheem hot water tank on 10/13/2022 and we have already blown two heating elements. I’m a single family home. We have contacted support more then once about this issue. We downgraded from a 50g to a 40g. Buying this heating was a mistake. Still no hot water. Still waiting for support to contact back. My family owns our home and never have we had such a problem with this kind of hot water tank. Supposed to last you 3-10 years and this wasn’t even a month! Very disappointed.
                by
                Response from RheemNov 2, 2022
                Hello Sarah,

                We apologize for the inconvenience and hope the issue has been resolved. If you still need assistance, please call Technical Support at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST and one of our experienced analysts will be happy to assist you.

                Isaiah rheem
                  6 found this review helpful
                  Soome assembly was not made
                  Was not assembled right i had to put teflon tape on the relief valve, and the element was also not tighten, its like they put it together and forgot to tighten everything.
                  by
                  Response from RheemOct 17, 2022
                  Hi,

                  Thank you for this review. We apologize for the inconvenience that you have experienced because of the need to tighten the heater element, and valve. The water heater that you have reviewed includes a 6-year parts and tank warranty, as well as a 1-year labor warranty. Please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST at your earliest convenience. Our experienced analysts will be happy to assist you with warranty coverage and technical information on your water heater.

                  Derius rheem
                  • Verified Purchase
                  5 found this review helpful
                  Water pour out after installation. Frustrated.
                  I bought the water heater at 3 pm and finished the installation at 7:30. The non-stop hard work turned out to be a frustration. Water poured out from the hole sitting the releasing valve. By no means does it relate to the installation. Isn't Rheem a name brand? But why? My bad. If it weren't because of the leak, I would not see these comments. I always trust Rheem.
                  by
                  Response from RheemOct 7, 2022
                  Hi,

                  Thank you for taking the time to write this review. We apologize for the inconvenience that you have experienced because of the leak on your water heater. The water heater you have reviewed includes a 6-year parts and tank warranty, as well as a 1-year labor warranty for peace of mind. Please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST. Our experienced analysts will be happy to assist you with warranty coverage.

                  Derius rheem
                    2 found this review helpful
                    The hot water heater itself works great. Perfect...
                    The hot water heater itself works great. Perfect fit etc. I had a guy lined up, took off work and the item had a vertical dent all the way down. I couldn’t be without hot water bc I’m a massage therapist and have to have hot water. So used the dinged ip on anyway. That’s my one and only complaint.
                    by
                    Response from RheemOct 3, 2022
                    Hi Donna,

                    Thank you for this review. We are glad to hear that your water heater is working great, as well as everything was a perfect fit. We apologize for the inconvenience that you have experienced because of the dent on your water heater. The water heater that you have reviewed includes a 6-year parts and tank warranty, as well as a 1-year labor warranty. If you need assistance with your new water heater, please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST. One of our experienced analysts will be happy to assist you with warranty coverage.

                    Derius rheem
                    • Verified Purchase
                    New heater leaked rigth from the start
                    After the installation, I filled the tank and purged the air out of it but there was a water leak from the heater itself. I determined the water was coming out where the wires go into the heater (see photos). They are only about 30 seconds in time apart. Notice the increase in water in just 30 seconds. Good thing I saw the leak before I switched on the circuit breaker. I could have been electrocuted! H-D exchanged it but I wasted 50 gallons of water and 2 hours time on that heater on it.
                    by
                      Leaks.
                      Bought this unit and hooked it up. Started spraying water out of the top of the tank somewhere, it was pouring out the top the heating element housing. (Not the element itself). Brought it back to Home Depot where they made the process very quick and easy. Brought the new one home hooked it up. Now it’s dripping out of the heating elements. We tried tightening them (even though we should not have to do that) still leaks. We will not be exchanging this one and we will be going somewhere else.
                      by
                      Response from RheemSep 6, 2022
                      Hi,

                      Thank you for this review. We apologize for the inconvenience that you have experienced because of the leak on your water heater. The water heater that you have reviewed includes a 6-year parts and tank warranty, as well as a 1-year labor warranty. Please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST. Our experienced analysts will be happy to assist you with warranty coverage.

                      Derius rheem
                        5 found this review helpful
                        Pretty Good for the money!
                        I have no complaints about this hot water heater. Easy to install, quiet and so far so good.
                        by
                        Response from RheemAug 18, 2022
                        Hi Michael,

                        So glad to hear installation was easy and you are enjoying your new water heater! If you ever have any questions about your new heater, please call Rheem Technical Support at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST and one of our experienced analysts will be happy to assist you.

                        Thank you for choosing Rheem for your water heating needs!

                        Derius rheem
                          • Recommended
                          3 found this review helpful
                          Hot water heater burst
                          The water heater burst and literally split right after the 6-year warranty expired! It broke the wall and water poured out of it and onto the floor. Rheem should be ashamed.
                          by
                          Response from RheemAug 2, 2022
                          Hi,

                          Thank you for taking the time to write this review. We apologize for the inconvenience that you have experienced because of the leak on your water heater. To better assist you, please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST. Our experienced analysts will be happy to assist you with technical information, and questions on warranty information.

                          Derius rheem
                            3 found this review helpful
                            Ordered this water heater on a Sunday. Home Depot delivered it the next morning (a holiday no less). Easy to install. Clear instructions. Within 20 minutes of filling the unit, we had hot water coming from our taps.
                            Exactly as Advertised
                            by
                            Response from RheemDec 8, 2022
                            Hi,

                            Thank you for this 5-star review! If you need assistance with your water heater, please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST.


                            Derius rheem
                            • Verified Purchase
                            • Recommended
                            4 found this review helpful
                            Performing good so far but it’s only been a couple...
                            Performing good so far but it’s only been a couple months. The unit was scratch free, dent free. I am glad Home Depot carry this trust brand. The ease of curb side pickup was good for a heavy product. Saves time and the Home Depot workers helped with the loading of the unit.
                            by
                            • Verified Purchase
                            2 found this review helpful
                            Awesome
                            Awesome the temperature is great was an great investment.
                            by
                            Response from RheemOct 27, 2022
                            Hi Leslie,

                            Thank you for the 5-star review! We are glad to hear you are enjoying your new Rheem Water Heater!



                            Derius rheem
                            • Verified Purchase
                            • Recommended
                            1 found this review helpful
                            It Leaks
                            Like everyone else I should have read the reviews first. It appears quality control at Rheem has fallen. My guess would be no one pressure checks these before we ship them out the door. Upon completion of installation and filling the tank the water leaks out the cold inlet side of the tank. This causes me to cut the soldiered copper pipe to tighten what should have been tightened and inspected at the factory. The water temperature was set at the factory at 90 which seems a bit low. While both fixes were easy for me I shouldn't have to fix a brand new product.
                            by
                            Response from RheemMay 27, 2022
                            Hi,

                            Thank you for this review. We apologize for the inconvenience this has caused you to experience with the installation and performance of your water heater. If you are still in need of assistance, please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST at your earliest convenience. One of our experienced analysts will be happy to help you with technical issues, and warranty coverage questions you may have.

                            Derius rheem
                              19 found this review helpful
                              Two year lifespan
                              I've bought 2 of these in last 4 years. Elements blow year 1 and tank leaks at year 2. Getting an AO Smith this time even though will have to modify cabinet.
                              by
                              Response from RheemMay 27, 2022
                              Hi,

                              Thank you for this review. We apologize for the inconvenience this has caused you to experience and would like an opportunity to better assist you. The water heater that you have reviewed includes a 6-year parts and tank warranty. Please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST. Our experienced analysts will be happy to help you with technical issues, and warranty coverage options available to you on this issue.

                              Derius rheem
                                10 found this review helpful
                                Worth every penny
                                Great purchase. Works well
                                by
                                Response from RheemOct 25, 2022
                                Hi Helen,

                                Thank you for the 5-star review! We are glad to hear you are enjoying your new Rheem Water Heater! If you need assistance with your water heater, please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST.



                                Derius rheem
                                • Verified Purchase
                                Upgraded After Reading Reviews
                                I was going to buy the less expensive water heater, but after reading the reviews I upgraded to the Performance Plus with LED indicators. A friend of mine helped me install this and he had to divert the copper pipes to get it to fit as the old one was a lot narrower than these. After installing and checking for leaks, he adjusted the temp up 5 degrees then turned the power back on. This thing is very efficient and quiet! I will be saving 1000kwh a year with this water heater.
                                by
                                  • Recommended
                                  3 found this review helpful
                                  90 days old and failed - RUN AWAY!
                                  Rheem customer support is horrible. Will NEVER buy another Rheem product EVER! The layera required to support, low resolution techs, onerous processes... Absolutely worst product support!
                                  by
                                  Response from RheemJun 9, 2022
                                  Hi Wayne,

                                  Thank you for this review. We apologize for the inconvenience that you have experienced. If you are still in need of assistance on your water heater, please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST. One of our experienced analysts will be happy to assist you with technical questions you may have.

                                  Derius rheem
                                    13 found this review helpful
                                    Beware of hidden gap in junction box insulation.
                                    Beware of hidden insulation gap in junction box insulation. Water discharged through this hole and made its way down to the drain pan with the outside of the water heater completely dry. I discovered this 1"+ insulation gap, and when I called Rheem about it, I was given a hard time and accused of improper installation, even though the hidden insulation gap has nothing to do with installation the water connections. Hopefully Rheem will pick up their appliance and deliver a new appliance.
                                    by
                                    Response from RheemJun 8, 2022
                                    Hi,

                                    Thank you for taking the time to write this review. We apologize for the inconvenience you have experienced because of leaking on your water heater. The water heater that you have reviewed includes a 6-year parts and tank warranty, as well as a 1-year labor warranty. If you are still in need of assistance, please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST. One of our experienced analysts will be happy to help you with warranty coverage, and potential service options available to you for this issue.

                                    Derius rheem
                                      • Recommended
                                      12 found this review helpful
                                      Cheaply made. Recommend change out the drain valve, The plastic...
                                      Cheaply made. Recommend change out the drain valve, The plastic will fail if u accidentally kick it lol
                                      by
                                      Response from RheemJun 16, 2022
                                      Hi Eric,

                                      Thank you for this review. We apologize for the inconvenience you have experienced because of your drain valve. The water heater you have reviewed includes a 6-year parts warranty. If you are still in need of assistance, please call our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST. Our experienced analysts will be happy to assist you with parts warranty coverage.

                                      Derius rheem
                                      • Verified Purchase
                                      5 found this review helpful
                                      Showing 1-30 of 8,459 reviews

                                      Frequently Bought Together

                                      +
                                      +
                                      Price:
                                      $609.00