0020352635880

Rheem

Model MR50245

Internet #205466186

Store SKU #344915

Store SO SKU #1000532496

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

$1,065.00 /each
  • 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.

Frequently Bought Together

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

8 Questions9 Answers

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 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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Answer (1)

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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1 answer

My current water heater is installed outdoors under covered patio. Can this one be installed outdoors in a covered area?

This question is from Marathon 50 Gal. Lifetime Warranty Electric Water Heater with Durable Design
Asked by
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June 6, 2016
I'm San Diego county so it only gets down to 35 to 40 deg fahr in winter. My current unit gets wet from heavy downpours which rain is rare lately here.
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August 5, 2016
Answer: 
This water heater can be installed outside in a water tight enclosure. Home Depot sells them.
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Customer Reviews

Rated 4.4 out of 5 by 16 reviewers.
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 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 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 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 5.0 out of 5.0 by 2nd Marathon by Rheem that we have owned. We had a 90 gal Marathon in Minnesota and it was great, now we live in FL. and have today installed our new 50 gal. Marathon. We are sure we will like this unit also for years to come. March 18, 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
Rated 5.0 out of 5.0 by Buyer be ware! I've had my water heater for 6 years, without any problems. I recently noticed that the exterior plastic shell was cracking. Called rheem with concern and was told that it would not stand up in our Texas heat. They upgraded the exterior case with new plastic that would take the Texas heat. Rheem gave me no hassle about a full replacement and authorized a warranty claim number. I called the store and they want me to pay the difference in price to to inflation. Rheem can't control Home depot exchange policy. The best part from management is that I have to return my old water heater first(it still works fine) and wait a expected 24 days for new heater. Rheem has been excellent in customer service but home depot has once again lived up to poor expectations. I recommend the heater but purchase from another source other than home depot. January 5, 2016
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