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Marathon 50 Gal. Tall 4500/4500-Watt Elements Non Metallic Lifetime Electric Tank Water Heater

$1429.00
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$undefined.00 /mo* suggested payments with months* financingApply Now
  • Plastic tank will not rust; ideal in hard water applications
  • Make sure it fits: measure your space to ensure dimensions fit
  • Provides ample hot water for homes with 3-5 people
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Price:
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Product Overview

Never buy another water heater after the Rheem Marathon 50 Gal. Electric Water Heater. The non-metallic tank eliminates rust and corrosion that leads to leaks in typical tank water heaters. This tank is backed by a lifetime warranty (with registration) and eliminates the hassle of periodically replacing your water heater. Plus, it's lightweight and perfect for replacement of an existing water heater.
  • Great investment and value: lifetime tank warranty (registration required) equates to a savings of over USD 5,700
  • No leaks and longer lasting: the non-metallic tank is impervious to rust and corrosion that can lead to leaks in metallic tanks
  • Prevents smelly water: tank construction eliminates the need for an anode rod which can cause smelly water
  • Perfect for replacement: the tank's size and light weight makes it easy to get home and in position
  • Easy to maintain: longer-lasting titanium element prevents corrosion buildup, there's no anode rod to replace, the bowl-shaped bottom allows water to drain more completely and an oversized access panel makes it easier to remove sediment
  • Reliable hot water: provides ample hot water for households with 3-5 people or homes with 3 plus bathrooms
  • Peace-of-mind: backed by a lifetime limited warranty on the tank and a 6-year limited warranty on parts (with registration)
  • A reliable hot water solution from rheem, the global leader in water heating
  • Designed for durability: choose a water heater that will las
  • Delivers saving and efficiency: consider both initial cost and lifetime savings
  • Built for simplicity: easy to install and easy to maintai
  • Enough hot water: choose a water heater that meets the highest demands of your household
  • Call 1-855-400-2552 before noon for same-day installation service in most areas, or visit our Water Heater Installation page for more information.
  • California residents

Additional Resources

From the Manufacturer

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BrandRheemRheemRheemRheem
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Price
$76999
$859.00 Save $89.01 (10%)
$142900
$193642
$204396
Ratings
(1539)
(393)
(2126)
(7)
Nominal Tank Capacity (gallons)50 gal50 gal50 gal50 gal
Application TypeResidentialResidentialResidentialCommercial
Water Heater ProfileMediumTallTallTall
Required Volt Connection240 volt240 volt240 volt240 volt
Wattage (watts)5500 W4500 W4500 W6000 W
Household Size3-53-53-53-5
Efficiency LevelHighHighSuper High
Water Heater FeaturesGlass-Lined Tank,Overheat Protection,Self Cleaning,Temperature Pressure Relief Valve,Vacation Mode,WiFiOverheat Protection,Temperature Pressure Relief ValveGlass-Lined Tank,Overheat Protection,Temperature Pressure Relief Valve,Vacation Mode,WiFiOverheat Protection,Temperature Pressure Relief Valve
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Specifications

Dimensions

Kilo Watt4.5Product Depth (in.)23.5 in
Product Height (in.)62.75 inProduct Width (in.)23.5 in
Tank Valve Size (in.)0.75 inWater Connection Size (in.)3/4 in

Details

Amperage (amps)18.75 AApplication TypeResidential
Efficiency LevelHighElectricity PhaseSingle Phase
Finish FamilyGrayFirst Hour of Delivery (gallons/hr)57
Fuel TypeElectricHousehold Size3-5
Indoor/OutdoorIndoorMaximum Temperature (F)150 °F
Minimum Temperature (F)90 °FNominal Tank Capacity (gallons)50 gal
Number of Elements2Pack Size1
Product Weight (lb.)103 lbRated Tank Capacity (gallons)50 gal
Required Volt Connection240 voltReturnable90-Day
Tank Lining MaterialGlassTank WarrantyLifetime
Uniform Energy Factor0.91Water Heater FeaturesOverheat Protection,Temperature Pressure Relief Valve
Water Heater ProfileTallWattage (watts)4500 W

Warranty / Certifications

Certifications and ListingsUL ListedLabor WarrantyNo Warranty
Part Warranty6 Year

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
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  • What are the dimensions of the product?

Customer Reviews

  • 4.5
    out of 393 reviews
  • 87%recommend this product
Filter by:
Showing 1-10 of 393 reviews
From a 33-year-old tank to a lifetime tank
I noticed some rust on the outside bottom of my 33-year-old hot water tank but no water on the floor. I flushed and changed the sacrificial rod every two years and water came out very slowly these past two times. Not wanting any surprises, I took preemptive action and decided to replace the tank. Research showed that the tank was made by Rheem and installed 33 years ago. Being very curious, I cut the tank in half to see if rupture was imminent. I found no noticeable rust inside the tank anywhere except around the rod connection at the top where a very small amount of water must have leaked out and worked its way down the insulation to the bottom skin. There was also about 6 inches of 'crud' in the bottom of the tank made up mostly of chunks of sacrificial rod pieces which hindered proper tank draining. There appeared to be no potential for tank rupture, but the 'crud' hindered proper operation of the lower heating element, so I'm glad I replaced it with 'I hope' to be another long-lasting Rheem hot water heater. Self-installation was very simple with flexible hoses and a minor adjustment to increase the water high temperature. So far, so good.
by
  • Verified Purchase
  • Recommended
4 found this review helpful
Not worth it
I like the concept (which is why i gave it 2 stars). Unfortunately this unit is poorly constructed. Because there is a glass lining, you have to be very careful not to break it because the plastic makes it that much more fragile. The inlet, outlet, and relief valve flop around until torqued to a fitting. If you put too much stress on any of those, you will break the glass lining. Takes up too much space (same size as a small refrigerator). It is top heavy and can tip very easily if you live in an area where you don't stap it to the wall. Mine leaked pretty bad under the inlet just below the plastic case. I'm sure that the good reviews are truthful but i think that they lucked out. These are so sensitive to damage that a lot of these units get sent back. Says in the manual if you need help, Rheem is available 7 days a week. I called at 10am on a Saturday and got a closed recording which did not state their operating hours. I returned it to the store.
by
Response from RheemMar 29, 2021
Hi Steve,

We are sorry to hear the Marathon Water Heater did not meet your expectations and that you had trouble when calling Technical Support. If we can help answer any question in the future please call 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 help you.

Jennifer rheem
    • Recommended
    7 found this review helpful
    Satisfied Customer
    This is the water heater model I had to have. From Magnesium to Aluminum to zinc Marathon. No one has a more potent water than what I have been dealing with. I was careful to take measurements because I knew it was going to be tight. I forgot to allow room for the thermostat covers. The plumber rotated it, so it was not a problem. I wanted this to look nice because it took a long time for me to save for this. I took out the top shelf. I glued some boards over the holes. Maybe I can buy some buy some poster board in the arts and crafts Section. I stayed with copper pipes and fittings-vertical installation. I wanted tees and pipes coming over and down. Everything is rigid and stationary so there is no lateral stress on the stub pipes. I thought it might keep the seals from leaking. I had the plumber install a ball valve. The expansion tank was an upgrade. The inspector will be coming out soon. Rheem states that it is necessary to have a drain no more than six inches in circumference under the relief valve discharge tube. I have a drain that is larger; and it could whisk away a lot of water. It is covered up right now though. The cat’s litter box is next to it. He prefers the drain. Overall, I think the plumber did a really nice job. I will have someone build new cabinets in the future.
    by
      • Recommended
      3 found this review helpful
      Gushing water 5 days before parts warranty expires (almost 6 years)
      I bought and installed this new in June 2014. It is May 2020 and the water heater is gushing water from the top. These are sealed and insulated so I can't tell what is wrong. Emergency plumber is $150 an hour so I'll wait till monday to call during normal hours. Also, Rheem is closed on saturday so I can't start the claim. Was trouble free for almost 6 years. Hope it doesn't take forever to get the new one/replacement parts so the family can take a warm shower.
      by
        • Recommended
        13 found this review helpful
        Gushing water 5 days before parts warranty expires (almost 6 years)
        I bought and installed this new in June 2014. It is May 2020 and the water heater is gushing water from the top. These are sealed and insulated so I can't tell what is wrong. Emergency plumber is $150 an hour so I'll wait till monday to call during normal hours. Also, Rheem is closed on saturday so I can't start the claim. Was trouble free for almost 6 years. Hope it doesn't take forever to get the new one/replacement parts so the family can take a warm shower.
        by
          • Recommended
          3 found this review helpful
          Gushing water 5 days before parts warranty expires (almost 6 years)
          I bought and installed this new in June 2014. It is May 2020 and the water heater is gushing water from the top. These are sealed and insulated so I can't tell what is wrong. Emergency plumber is $150 an hour so I'll wait till monday to call during normal hours. Also, Rheem is closed on saturday so I can't start the claim. Was trouble free for almost 6 years. Hope it doesn't take forever to get the new one/replacement parts so the family can take a warm shower.
          by
            • Recommended
            2 found this review helpful
            Professionally installed , leaky valve from day one
            Just had the 50 gallon Marathon installed. I love the idea of no anode rod, eliminating the sulfur smell and nonmetallic tank. As soon as it was installed it leaked from the top valve. I knew immediately from reading reviews it was a known issue from at least back in 2016 that Rheem indicated they would look into. I’m now stuck without a hot water heater til I can decide which to replace it with. Seems it’s the only one without the anode rod but I don’t want to take the chance replacing it from the same company. From my experience and reading reviews I wouldn’t purchase another one.
            by
            Response from RheemApr 9, 2020
            Hi,

            We can certainly help you with your concern, 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.


            Jennifer rheem
              8 found this review helpful
              I ordered this water heater on 11-12-2018. Upon installing it, it leaked. I called Rheem in Montg...
              I ordered this water heater on 11-12-2018. Upon installing it, it leaked. I called Rheem in Montgomery and they authorized a warranty replacement. They said they would make an appointment with one of their approved contractors to replace it. The earliest appointment they could make was a week and a half away. The day before their contractor was supposed to come replace it, Rheem warranty services in Dover, NJ called and told me that the warranty on this water heater did not cover onsite service. They said I would have to return it to Home Depot for them to process the warranty return. The replacement apparently got dropped off the truck into the middle of the road somewhere. It's now March 2019 and I'm still waiting for my water heater. If I could give this water heater a rating of negative 10 stars, I would
              by
                34 found this review helpful
                Had to return. Box was torn open in multiple places and there was corrosion on the brass fittings...
                Had to return. Box was torn open in multiple places and there was corrosion on the brass fittings. Also heater was 2 yrs 9 mos old so energy star rating was over $100 more per year than the one I purchased online. . I had to bring it back to the store myself. I did receive a full refund though including delivery fee.
                by
                Response from RheemJan 11, 2019
                Hi Mitch,

                We apologize for the inconvenience and hope your re now enjoying a new Rheem water heater, if you ever 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.

                Thank you,
                Jennifer rheem
                • Verified Purchase
                14 found this review helpful
                We had one of these installed to solve the sulfur smell problem with the well water. We have not ...
                We had one of these installed to solve the sulfur smell problem with the well water. We have not had any trouble with it. It is very efficient. We had electricity go out for a week once and the water inside was still lukewarm. The tank is plastic so pay special attention to the draining instructions!
                by
                  • Recommended
                  8 found this review helpful
                  Showing 1-10 of 393 reviews