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Marathon 105 Gal. Tall 4500-Watt Electric Non-Metallic Tank Water Heater
  • Rheem
  • Model MHD105245
  • Internet #205931648
  • Store SO SKU #

Marathon 105 Gal. Tall 4500-Watt Electric Non-Metallic Tank Water Heater

$1,423.99 /each
Discontinued Model:

Model # MR105245

Internet #202584262

Marathon 105 Gal. Tall 4500 Watt Lifetime Electric Water Heater
0020352473185

Discontinued Marathon

105 Gal. Tall 4500 Watt Lifetime Electric Water Heater

  • 105 gallon tank provides ample hot water for a 3 plus bath home
  • Electric water heater is easy to maintain
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.

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Product Overview

The 105 Gal. Tall Marathon lifetime electric water heaters provides hot water with peace of mind. Plastic tank eliminates the need for anode rod and prevents smelly water. Rigid foam insulation covers entire tank for maximum efficiency. Bowl-shaped tank bottom drains completely for easy service and sediment removal Lower titanium heating element for superior resistance to lime buildup. Factory installed temperature and pressure relief valve offers added protection. Lifetime limited warranty on tank and 6 year limited warranty on parts. Meets or exceeds National Appliance Energy Conservation Act (NAECA) requirements.

  • Lifetime limited warranty on the tank, plus a 6-year limited warranty on the parts for your convenience
  • Meets or exceeds NAECA requirements
  • Bowl-shaped tank bottom drains completely for easy service and sediment removal
  • Plastic tank eliminates the need for an anode rod and prevents smelly water
  • Non-metallic tank and jacket resists corrosion
  • Thermally-fused upper element protects against dry firing
  • Click here to check out our buying guide on water heaters

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Price
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Name 105 Gal. Tall 4500 Watt Lifetime Electric Water Heater Marathon 40 Gal. Tall 4500-Watt Lifetime Electric Water Heater Performance Platinum 65-Gal. Hybrid Electric Tank Water Heater—High Efficiency, Mobile Alert Compatible and 10-Yr Wty Performance Platinum 80-Gal. Hybrid Electric Tank Water Heater—High Efficiency, Mobile Alert Compatible and 10-Yr Wty
Brand Marathon Rheem Rheem Performance Rheem Performance
Ratings (195) (8) (98) (98)
Tank Capacity (gallons) 105 40 65 80
Product Height (in.) 66.75 61.5 74 74
Product Width (in.) 30.25 in 21.75 24.25 24.25
Part Warranty 6 Year 6 Year 10 Year 10 Year
Water Heater Profile Tall Tall Tall Tall
Wattage (watts) 4500 4500 5000 W 5000 W
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Customer Questions & Answers

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How long can you hold it at the store after purchase
Asked by: David
David, Seems Home Depot forwarded your query to me when only they can answer your question. The water heater was not available in my KittyHawk Store, requiring me to have them order it online in August of 2014. Upon its arrival I picked it up and installed it myself. It turned out that the new 105 gal unit weighed less than the old 80 gal one and installation was straight forward. In the year of service we could not be more pleased. My standard routine when traveling is turn off both main water supply and water heater power. Recently after a two week trip, I turned on the water but neglected the circuit breaker. On the 3rd day we noticed that showers were not as warm as usual and I realized & corrected my oversight. Hope this helps.
Answered by: Tiger260
Date published: 2015-09-20
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Customer Reviews

105 Gal. Tall 4500 Watt Lifetime Electric Water Heater is rated 4.6 out of 5 by 195.
Rated 2 out of 5 by from Disappointed Bought the tank in November of 2015 for a new home. We moved into the house in May 2016. It was fine for about one week, then the elements broke! Called Rheem and they sent us new elements (standard elements do not fit), but only after the plumber called, too. Took cold showers until the parts came 4 days later. Less than a week later the thermostat broke. Cold showers again!! Didn't bother calling. We were frustrated and sick of taking cold showers so we just had our plumber install a standard hot water tank. Very disappointed especially considering how EXPENSIVE it was to buy.
Date published: 2017-01-16
Rated 2 out of 5 by from plastic tank a problem When these first came out I installed several of them, in my house, an apartment, and at least two customer's homes. I have lost track of one of the customers, but the other three have gone bad. The company gets a good rating, as all have been replaced by them, except for the one in the apartment.
Date published: 2017-01-15
Rated 5 out of 5 by from Plenty of HOT Water! I bought the water heater to replace one that had started leaking, I was able to take a HOT shower less than an hour after I installed it and our family of 4 has not run out oh hot water yet. The outside of the water heater stays at room temperature thanks to the superior insulation. I bought mine through our Electric CO OP (Ozarks Electric Cooperative) and saved about $250.00 vs buying from a home center or other outlet They only sell the highest efficiency electric appliances (water heaters and heat pumps) to their members and they are sold at cost since by law an Electric Cooperative can't make a profit.
Date published: 2016-12-18
Rated 5 out of 5 by from About a dozen excellent features I don't see other This make has a good dozen or more features that others do NOT have to the best of my knowledge. Any non-ferrous water heater is top dog ;--- end of story. It's thermostats are easily accessible and adjustable as are the wiring hook-up,tubing connectors,and exchangeability of the elements. Tank outer shell is only a few degrees warmer than ambient so that says the R-factor of the 2 inches or so of insulation is effective. Optically, it has pleasing aesthetics. Although somewhat pricey you know the old adage --- you get what you pay for ! Too bad the distributor does not have the other variants of this make on hand (as I was led to believe) but as is often the case I needed it yesterday since it was urgent to have domestic hot water perhaps especially so during cold periods (-15oc) ! Cheers ~~~ Clifford .
Date published: 2017-03-30
Rated 5 out of 5 by from Hotter water than I've had in ages! I purhcased my Marathon water heater just days ago, it replaced an 11+ year old water heater. The water is hot, fast and reliable so far. A small glitch with the installation, it was rectified by days end and everything was completed as promised. My only negative comment, the Rheem Marathon water heaters aren't easy to find in Nova Scotia, I had to do a lot of research to find the only company that knew about it and would/could install my Rheem Marathon!
Date published: 2017-02-04
Rated 5 out of 5 by from One Year Later We had this unit installed to replace a ten year-old tank, and so far we're very happy with our choice and can't complain about it. It's heats the incoming municipal cold water to a toasty 125 degrees, and we're able to squeeze in one dishwashing session by hand and three showers by family members before the hot water supply is gone. We were worried about possible cracks in the plastic shell over time, since it is a hard plastic, but so far no cracks.
Date published: 2017-01-12
Rated 4 out of 5 by from Hot water Wanted to replace a working 18 year old hot water heater with something that I would not have to worry about a tank leaking. Our home is very near the Rural Water tower and had water pressure at 90+ lbs.. As a part of the Marathon water heater install I installed a (water district provided) water pressure reducing valve to reduce the pressure to 45 lbs and also a thermal expansion bladder tank as recommended by the install directions.
Date published: 2017-01-12
Rated 5 out of 5 by from use as a solar holding tank I bought this tank to replace a steel one for our solar water heating system. It is well made and should last as long or longer than the rest of the system. I only wish that Rheem would make a Marathon tank without the electric elements installed. I have an on demand heater that as part of the water heating system so I have no use for them. I tried to find a plug that would fit where they are installed, but was unable to find one.
Date published: 2017-02-03
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