Marathon 40 Gal. Tall 4500/4500-Watt Elements Non Metallic Lifetime Electric Tank Water Heater
$1142.86
- Plastic tank will not rust; ideal in hard water applications
- Make sure it fits: measure your space to ensure dimensions fit
- WA Residents – see disclaimer below before purchasing
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Product Details
Specifications
Questions & Answers
116Questions
Q:does this tank come with pressure relief valve
by|May 26, 2023
1 Answer
Q:Do they sell these heaters in the phillipines?
by|May 20, 2023
1 Answer
Q:What is the maximum temperature this tank can handle?
by|May 15, 2023
1 Answer
Q:Can I replace the upper heating element with a titanium one like the lower heating element (Part # SP13409BM)?
by|May 11, 2023
1 Answer
Showing 1-4 of 116
Oct 12, 2022
LOOKS LIKE A MISSILE!
After installing several different types of water heaters that either don’t work and/or don’t last, I decided to install this one with its non-metallic, corrosion-proof tank along with a stainless steel water expansion tank (with a REAL mounting bracket mind you), and brass fittings with stainless steel connections. Now I actually have confidence that I won’t be dealing with rust problems a few years down the road. Totally worth the investment. Also, it LOOKS LIKE A MISSILE!!!
by
Response from RheemOct 13, 2022
Hi,
Thank you for choosing Rheem Water Heating for your home, we are thrilled to hear you are enjoying your new water heater and appreciate you taking time to write this review. 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
Thank you for choosing Rheem Water Heating for your home, we are thrilled to hear you are enjoying your new water heater and appreciate you taking time to write this review. 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
Feb 1, 2022
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
Response from RheemOct 21, 2022
Hi,
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
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
Mar 28, 2021
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
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
Dec 8, 2020
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
May 16, 2020
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
May 16, 2020
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
May 16, 2020
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
Mar 24, 2020
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
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
Mar 1, 2019
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
Dec 8, 2018
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
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
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| Top Rated |  |  |  | |
| Brand | Rheem | Ariston | Rheem | Rheem |
| Name | Marathon 40 Gal. Tall 4500/4500-Watt Elements Non Metallic Lifetime Electric Tank Water Heater | 40 gal. Electric Water Heater Lifetime Residential 5500-Watt with Durable 316 l Stainless Steel Tank | Commercial Light Duty 40 Gal. 208 Volt 8 kW Multi Phase Field Convertible Electric Tank Water Heater | Commercial Light Duty 50 Gal. 240 Volt 8 kW Multi Phase Field Convertible Electric Tank Water Heater |
| Price | $114286 | $122500 | $198100 | $227700 |
| Ratings | (437) | (2) | (4) | (13) |
| Nominal Tank Capacity (gallons) | 40 gal | 40 gal | 40 gal | 50 gal |
| Water Heater Profile | Tall | Medium | Tall | Tall |
| Application Type | Residential | Residential | Commercial | Commercial |
| Tank Warranty | Lifetime | Lifetime | 3 Year | 3 Year |
| Wattage (watts) | 4500 W | 5500 W | 8000 W | 8000 W |
| Required Volt Connection | 240 volt | 240 volt | 208 volt | 240 volt |
| Household Size | 2-4 | 2-4 | 2-4 | 3-5 |
| Efficiency Level | High | Super High | ||
| THD SO SKU | 1001295845 | 1003175413 | 1003175480 | |
| View Product | View Product | View Product | View Product |
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