Marathon 85 gal. Tall 4500 Watt Lifetime Electric Water Heater-MR85245 - The Home Depot


Model # MR85245

Internet # 202584261

85 gal. Tall 4500 Watt Lifetime Electric Water Heater

Marathon 85 gal. Tall 4500 Watt Lifetime Electric Water Heater

This item has been discontinued.
The Home Depot no longer carries this specific product.

$1,107.59 / each
  • Same-day installation in most areas. Call 1-855-650-2786 by noon
  • Electric water heater is energy efficient and easy to maintain
  • 85 gallon tank provides ample hot water for your household


Model # MR85245

Internet # 202584261

The 85 gal. Tall Marathon lifetime electric water heater provides hot water with peace of mind. Plastic tank eliminates the need for anode rod and prevents smelly water. Rigid foam insulation covers the 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.

  • First hour rating of 91 gal. per hour
  • Lifetime limited warranty on the tank, plus a 6-year limited warranty on the parts for your convenience
  • 0.92 energy factor signifies a high-efficiency heater
  • 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
  • Factory-installed temperature-and-pressure relief valve enhances your safety and offers peace of mind
  • Thermally-fused upper element protects against dry firing
  • Lower element is made of titanium steel for resistance to lime buildup

Info & Guides

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Assembled Depth (in.)  28.25 in  Assembled Height (in.)  66.25 in 
Assembled Width (in.)  28.25 in  Product Depth (in.)  28.25 
Product Height (in.)  66.25  Product Width (in.)  28.25 in 
Tank Valve Size (in.)  0.75  Water Connection Size (in.)  3/4 
Application Type  Residential  Finish Family  Gray 
First Hour of Delivery (gallons/hr)  91.0  Fuel Type  Electric 
Indoor/Outdoor  Indoor  Maximum Temperature (F)  150 
Minimum Temperature (F)  90  Product Weight (lb.)  139 lb 
Returnable  90-Day  Tank Capacity (gallons)  85 
Water Connection Location  Top  Water Heater Features  Overheat Protection,Temperature Pressure Relief Valve 
Water Heater Profile  Tall  Wattage (watts)  4500 
Warranty / Certifications
Certifications and Listings  1-UL Listed  ENERGY STAR Certified  No 
Labor Warranty  No Warranty  Part Warranty  6 Year 


Rated 4.6 out of 5 by 83 reviewers.
Rated 1.0 out of 5.0 by Would have loved it, if it didn't leak and if HD had an overflow pan to fit ti.. Rheem provided prompt warranty service and my defective unit was accepted at HD without issue. That's the good news. This unit failed about a week into service. This is a very large anode free (plastic tank?) unit and the brass fittings to tank connections are apparently the weak link. My unit started leaking inside the outer shell where the pressure relief valve mounts to the (presumably plastic) inner tank. Unfortunately, when water cascades from the top of the unit it splashes over the bottom seam and won't all be caught by a 32" diameter drain pan (which HD doesn't sell but I found at Amazon) so water damage is a very real potential. Rheem did provide me the option to attempt repair of leaky "threaded" connection but after confirming water coming from between the shell & tank I was advised that it was not field repairable. Both Rheem & HD were very easy to deal with - unnecessarily wrestling a 105 gallon water heater about, not so much. A plastic, anode free tank is a great concept but every connection has to be bulletproof. February 16, 2015
Rated 5.0 out of 5.0 by Great Water Heater Ordered this water heater a few weeks ago. HD matched a lower price at Menards. Delivery was exactly on time, with a lift truck to drop off at my home on pallet. Surprised at how light it was. Had done a lot of research and this unit always came out on top and with a lifetime tank warranty and excellent recovery time. I used this unit to replace 2 80 gallon units that had lasted 28 years. It is well made and installation was incredibly easy- took about 20 minutes total. Had hot water in less than 20 minutes. All looks great and only hope it lasts 25 years ! Highly recommend. April 30, 2013
Rated 5.0 out of 5.0 by Should be the last water heater I buy. The installation was easy. I only needed to buy brass nipples and flex tubing to connect. Should last forever. The only thing that might fail is the heater element. February 18, 2014
Rated 5.0 out of 5.0 by Awesome unit! I replaced a failing NG unit with this electric one and I have been impressed. I've had hotter water than ever and have been totally pleased at how little energy an 85 gallon water heater is using! I am planning to replace the water heater at a weekend home with a 50 gallon unit! Very pleased! March 18, 2015
Rated 5.0 out of 5.0 by Excellent and energy efficient I am extremely happy with my purchase of this water heater it is much more efficient than my old one and very well-made and good quality! March 3, 2015
Rated 4.0 out of 5.0 by Great if not defective Very nice heater EXCEPT that mine had a bottom heater element that failed after 3 months of very little use at seasonal camp. Bottom element replaced under warranty BUT I had to buy a 1-7/8" socket and adaptor that were not available locally. Total cost of $100 for tools, shipping, gas, etc. That said, it is well insulated, hopefully well built, and should not have problems typical of "conventional" water heaters. If you buy one do yourself a favor and get the tools needed to replace an element if necessary. December 2, 2014
Rated 5.0 out of 5.0 by Big! This is a big water heater! Not to heavy but it is awkward because it is slippery and there aren't any hand holds on the sides. The heater works and there were no leaks in the factory fittings. You will have to re-plumb your existing connections because the heater is taller than most heaters. I added a Watts automatic water and power shutoff so that I don't end up with another flood like I got from the old heater. April 7, 2015
Rated 5.0 out of 5.0 by Good looking water heater? Never thought I'd say that. I never thought I'd say there is a good looking water heater. The Marathon 85 gal. is cool looking. We call it our cryogenic tank due to its size, finish and looks. We have been using it for three weeks and so far it is perfect. It was very easy to install. You do need about 25% more space in all directions than a comparable WH. It has a large amount of insulation. The 85 gallon unit will not fit in a standard drain pan or if your old WH only has a couple inches of open space around it you will need to do some careful measuring. Don't forget the height. You could need to alter the plumbing above the WH to make room for this unit. All fittings are standard size (3/4"), male hot water, female cold water and pressure release. If you need to replace the heating element you can NOT just pick one up at the local plumbing supply store. You will need to oder one from Rheem. They range from about $50 - $90 depending on the type (Reg., SS, Titanium). No anode needed. September 4, 2011
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Basic Home Shipping includes delivery to your doorstep or first dry area outside with no signature or appointment required. Delivery services for this item may be upgraded for an additional fee.

Other Delivery Options:

Threshold Home Shipping (By Appointment) includes delivery across your first doorway or threshold (i.e. into garage, backyard, or first room of the home). The carrier will contact you to make a delivery appointment with a 4 hour window once the items have arrived at the local hub in your area. Delivery appointments are required.

White Glove Home Shipping (By Appointment) includes delivery to the room of your choice, unpacking and debris removal. Assembly is not included. The carrier will contact you to make a delivery appointment with a 4 hour window once the items have arrived at the local hub in your area. Delivery appointments are required.

If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.