Model # MR50245

Internet #205466186

Store SKU #344915

Store SO SKU #1000532496

Rheem Marathon 50 Gal. Lifetime Warranty Electric Water Heater with Durable Design
0020352635880

Rheem

Marathon 50 Gal. Lifetime Warranty Electric Water Heater with Durable Design

  • Save over $5,700 with lifetime warranty
  • Non-metallic design eliminates tank rust & corrosion
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.
$1,029.48 /each

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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.

California residents: see   Proposition 65 information

  • Great investment and value: lifetime tank warranty (registration required) equates to a savings of over $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+ 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 last

    Rheem Marathon Water Heater

  • Delivers saving and efficiency: Consider both initial cost and lifetime savings

    Rheem Marathon Water Heater

  • Built for simplicity: Easy to install and easy to maintain

    Rheem Marathon Water Heater

  • Enough hot water: Choose a water heater that meets the highest demands of your household

    Rheem Marathon Water Heater

  • Can't see the graphics above, visit us on a computer or tablet
  • Call 1-855-400-2552 before noon for same-day service in most areas, or Visit our Water Heater Installation page for more information.
  • Click here to check out our buying guide on water heaters
  • Click here for more information on Electronic Recycling Programs

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Customer Questions & Answers

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Customer Questions & Answers

Marathon 50 Gal. Lifetime Warranty Electric Water Heater with Durable Design
Marathon 50 Gal. Lifetime Warranty Electric Water Heater with Durable Design

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2 answers

Is this a plastic tank or not?

This question is from Marathon 50 Gal. Lifetime Warranty Electric Water Heater with Durable Design
Asked by
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November 12, 2015
I asked a couple other questions about maintenance, and got good answers. But the answers that come back keep mentioning that this tank is not plastic. The premise of the other questions was that it was a plastic tank and should never rust, but will it ever fail. The maintenance part is answer (should be flushed).

But the answers have been saying that it's actually a stainless steel tank, and shouldn't rust because it's stainless steel (not because it's plastic).

The description of this tank says "Plastic tank wont rust; ideal in hard water applications
Lightweight jacket and tank make it easier to install"

Is it or is it not?

Here is some more information to make sure that we're all talking about the same thing:
This is a Marathon
Model # MR50245.
The current price on 12 November is over $1,000 on website: http://www.homedepot.com/p/Marathon-50-Gal-Tall-4500-Watt-Lifetime-Electric-Water-Heater-MR50245/205466186

Thanks!

Dan
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Answers (2)

Asked by
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December 2, 2015
Answer: 
Yes, this is a plastic tank.
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Asked by
Columbus OH
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November 29, 2015
Answer: 
8 years ago the tank was polybutylene, a type of 'plastic'. The polymer industry hates using the term because it connotes cheapness, so they call usually call it 'resin'. It's plastic, the same material used in PEX plumbing. NOTE: the heater fittings used to be made of galvanized steel which does eventually rust out depending on how aggressive the water is. Mine rusted and began leaking at 5 years, but I Read More
8 years ago the tank was polybutylene, a type of 'plastic'. The polymer industry hates using the term because it connotes cheapness, so they call usually call it 'resin'. It's plastic, the same material used in PEX plumbing. NOTE: the heater fittings used to be made of galvanized steel which does eventually rust out depending on how aggressive the water is. Mine rusted and began leaking at 5 years, but I have soft water with very high TDS (salt). I do not know if the current ones have this weakness, but it was the design's Achilles' heel. Read Less
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1 answer

Is the lifetime warranty transferable?

This question is from Marathon 50 Gal. Lifetime Warranty Electric Water Heater with Durable Design
Asked by
Lakes, NH
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October 2, 2016
Have changed out water heater with a GeoSpring Hybrid and would like to sell the Marathon - I'm sure I'll be asked
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October 3, 2016
Answer: 
The warranty is not transferable if the unit is moved from the address where it was installed at.
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1 answer

Is yearly maintenance / flushing tank of sediment necessary with this type of tank?

This question is from Marathon 50 Gal. Lifetime Warranty Electric Water Heater with Durable Design
Asked by
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July 27, 2016
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Asked by
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August 1, 2016
Answer: 
It is recommended in the "Use and Care" manual for all of our tanks to flush several quarts of water off the bottom of the tank on a monthly basis. How fast sediments build up is dependent on your water content.
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1 answer

If this water heater fails within a week, the customer still has to pay for labor ?

This question is from Marathon 50 Gal. Lifetime Warranty Electric Water Heater with Durable Design
Asked by
Mesa, AZ
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July 2, 2016
The warranty obviously only covers parts. If this $1,000 water heater fails within a week, for example a leaking O-ring, he will only get a new O-ring under warranty and be responsible for the $ 100,- plumber charge ?
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August 5, 2016
Answer: 
I am sorry there is no labor warranty with this product.
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Customer Reviews

Rated 4.3 out of 5 by 18 reviewers.
Rated 1.0 out of 5.0 by Mine failed. I have been very proud of this heater since I purchased it in '98 or '99. Now in 2016 it has failed with water pouring out of it.. Tried contacting Marathon and got no response. I paid twice the price of a conventional water heater but got less than twice the life of it. I understand that an item can fail but by not even being able to get in to contact the company to get the warranty process started is not acceptable. Also 2 weeks to wait for replacement would not be acceptable. (No longer stocked locally) It looks like I will be forced to buy an off the shelf water heater to get hot water for my family till the warranty issue is resolved. September 9, 2016
Rated 5.0 out of 5.0 by "Lifetime warranty" deceptive. 6yrs on metal parts easy install, fittings preinstalled, 6 yrs metal warranty September 10, 2016
Rated 1.0 out of 5.0 by "Lifetime warranty" is limited to parts only Product started to leak from upper control panel after approximately 1 year. Rheem would only pay for the gasket but expects us to pay for the cost to replace it. July 4, 2016
Rated 5.0 out of 5.0 by Working Great I installed this water heater because our well water is acidic. With the plastic construction of this heater the issue of the water heater tank rotting out will now be a non-issue. April 22, 2015
Rated 5.0 out of 5.0 by Really happy with purchase The tank comes with a 10 year warranty but if you will just register it you get a lifetime warranty. I had registered mine and 13 years later was able to replace it with a new one under warranty and I have registered my new one. April 26, 2016
Rated 5.0 out of 5.0 by Light and hot We never run out of hot water now and it was so light and easy to install April 26, 2016
Rated 5.0 out of 5.0 by Been a great water heater The tank failed after 7 years, we kept the water very hot, They replaced the tank in 2007 and only had an element go out last year and yesterday the vacuum relief leaked a little setting alarm under tank off, been well worth the money. We keep it at 140* now, think it may go a long way March 26, 2016
Rated 4.0 out of 5.0 by Small problem, may have been caused by choices made by Home Depot installer. Purchased and installed nearly three years ago, with Home Depot installers handing removal of the old tank and installing new. Just within the last couple of weeks, the output line developed a slow leak at the nipple exiting the tank, and just a couple of nights ago, the input line nipple developed a larger leak. My plumber was able to make it out within twelve hours of the second leak. I noticed when the leak started that the nipples used in the installation were galvanized metal, and the fittings were brass. Shouldn't mix unlike metals like that when plumbing, even I know that. My plumber pulled the existing nipples out, they were loose and rusting. That explained the leaks and why they happened consecutively in a short period of time. Also, the installers only used thread tape, and no pipe dope when they did the installation. Brass nipples in place now and no leaks. Just be cautious of the install quality if you are using HD and make sure compatible metals (brass on brass or brass/copper) are used and you should not run into the problem I just had to pay to fix! February 20, 2016
  • 2016-10-30 T23:21:54.576-05:00
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