Model # MSR50245

Internet #202584260

Rheem Marathon 50 Gal. Short 4500-Watt Lifetime Electric Water Heater
0020352473369

Rheem

Marathon 50 Gal. Short 4500-Watt Lifetime Electric Water Heater

  • Plastic tank wont rust; ideal in hard water applications
  • Lightweight jacket and tank make it easier to install
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.
$106500 /each
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Product Overview

  • Plastic tank wont rust; ideal in hard water applications
  • Lightweight jacket and tank make it easier to install
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.
The 50 Gal. Short 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 steel 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
  • Multiple layers of filament wound fiberglass give the tank unmatched strength
  • High temperature polysulfone dip tube
  • Full-flow, brass drain valve
  • Bowl shaped tank bottom allows complete sediment draining
  • Meets 2015 NAECA standards
  • Click here for more information on Electronic Recycling Programs

Product Overview

The 50 Gal. Short 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 steel 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.

California residents: see   Proposition 65 information

  • 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
  • Multiple layers of filament wound fiberglass give the tank unmatched strength
  • High temperature polysulfone dip tube
  • Full-flow, brass drain valve
  • Bowl shaped tank bottom allows complete sediment draining
  • Meets 2015 NAECA standards
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Name Performance 47 Gal. Short 6 Year 4500/4500-Watt Elements Electric Water Heater with Blanket Marathon 50 Gal. Short 4500-Watt Lifetime Electric Water Heater Marathon 50 Gal. Lifetime Warranty Electric Water Heater with Durable Design Performance Platinum 50 Gal. 10-Year Hybrid High Efficiency Electric Tank Water Heater
Brand Rheem Rheem Rheem Rheem
Ratings (44) (212) (29) (157)
Wattage (watts) 4500 4500 4500 5000 W
Product Width (in.) 26.25 28.25 in 23.5 22.25
Water Heater Features Overheat Protection,Temperature Pressure Relief Valve Overheat Protection,Temperature Pressure Relief Valve Overheat Protection,Temperature Pressure Relief Valve Overheat Protection,Temperature Pressure Relief Valve,WiFi
Water Heater Profile Short Short Tall Tall
View Product View Product View Product View Product

Specifications

Dimensions

Product Depth (in.)
28.25
Product Height (in.)
47.25
Product Width (in.)
28.25 in
Tank Valve Size (in.)
0.75
Water Connection Size (in.)
3/4

Details

Amperage (amps)
18.75 A
Application Type
Residential
Energy Factor
0.95
Finish Family
Gray
First Hour of Delivery (gallons/hr)
54.0
Fuel Type
Electric
Indoor/Outdoor
Indoor
Maximum Temperature (F)
150
Minimum Temperature (F)
90
Nominal Tank Capacity (gallons)
50
Product Weight (lb.)
101lb
Rated Tank Capacity (gallons)
48
Required Volt Connection
240
Returnable
90-Day
Tank Warranty
Lifetime
Uniform Energy Factor
0.93
Water Connection Location
Top
Water Heater Features
Overheat Protection,Temperature Pressure Relief Valve
Water Heater Profile
Short
Wattage (watts)
4500

Warranty / Certifications

Certifications and Listings
1-UL Listed
Labor Warranty
No Warranty
Part Warranty
6 Year

Specifications

Dimensions

Product Depth (in.)
28.25
Product Height (in.)
47.25
Product Width (in.)
28.25 in
Tank Valve Size (in.)
0.75
Water Connection Size (in.)
3/4

Details

Amperage (amps)
18.75 A
Application Type
Residential
Energy Factor
0.95
Finish Family
Gray
First Hour of Delivery (gallons/hr)
54.0
Fuel Type
Electric
Indoor/Outdoor
Indoor
Maximum Temperature (F)
150
Minimum Temperature (F)
90
Nominal Tank Capacity (gallons)
50
Product Weight (lb.)
101lb
Rated Tank Capacity (gallons)
48
Required Volt Connection
240
Returnable
90-Day
Tank Warranty
Lifetime
Uniform Energy Factor
0.93
Water Connection Location
Top
Water Heater Features
Overheat Protection,Temperature Pressure Relief Valve
Water Heater Profile
Short
Wattage (watts)
4500

Warranty / Certifications

Certifications and Listings
1-UL Listed
Labor Warranty
No Warranty
Part Warranty
6 Year

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Questions & Answers

Short vs Tall.....Does it matter if you have a lot of room?

Short vs Tall.....Does it matter if you have a lot of room?
Asked by: Joe
Remembering that during use one gallon of cold water enters the water heater for every gallon you use, you do not have 50 gallons of hot water to use after you open the tap. I felt that the shorter unit with the heating elements closer together and the fatter tub of water would possibly give me better capacity. Not sure of the science there, but was my theory. Since some initial problems setting the water temp, on the two elements the heater has been reliable for the three people in our home, with occasional overnight guests. We have seldom run out of hot water, but it has happened. I like the look of the short unit and the ease of hookup. The insulation alone has helped save on our electric bill. I have no regrets, at this point and would recommend the unit I purchased. The tall more slender units are better for cramped installations, but like you there was no space problem with my install.
Answered by: Fool
Date published: 2017-08-07

How thick is the insulation on this series of water heaters?

How thick is the insulation on this series of water heaters?
Asked by: bigfinley
2"
Answered by: Plumberman
Date published: 2017-06-04

Can this model be mounted horizontally?

Asked by: Michael
No, cold water is directed to bottom of tank from inlet, part of a water heaters thermal heating design.heat rises, must be installed vertically as designed to avoid tempered down water issues
Answered by: Plumberman
Date published: 2017-04-20

Softened Water

Hi, I have very hard water, >100 GPG hard in West Texas. My softener removes the hardness, yet will the elements in this unit not last due to no anode in the softened water? Thanks
Asked by: Stratosurfer
Yes, this unit is not designed with an anode rod. The primary purpose of the anode is to protect a steel tank from corrosion and then developing a leak. Since the interior of a Marathon is plastic an anode rod is not needed.
Answered by: Rheem
Date published: 2017-03-30
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Customer Reviews

Marathon 50 Gal. Short 4500-Watt Lifetime Electric Water Heater is rated 4.5 out of 5 by 212.
Rated 5 out of 5 by from Best water heater I have ever owned. In April of 2007, I installed two of these units in parallel. I thought they were 85 gallons, but they might be 100. I have a heavy iron content in my water, which damaged my old water heaters and gave off that sulfur smell. In the 10 years, I have had these I have had no problems, no smell and no debris comes out when I flush them once a year. I was thinking of replacing the heating elements and I came across these reviews. I did not see anyone that has had them very long, so I thought someone could benefit from my review.
Date published: 2017-07-18
Rated 5 out of 5 by from Peace of mind Our plumber recommended this water tank to us and we are glad that we listened. We had an old tank break on us years ago and the one that was installed after that was already starting to show wear and tear as it was over 10 years old. Our plumber has never known a Marathon tank to fail and said that it will give us peace of mind. We have faith in our plumber, and now we have faith in our water tank!
Date published: 2017-05-01
Rated 1 out of 5 by from Do not buy I have had my hot water heater for 2yrs and the heating element with out. It was difficult to find a contracted dealer who will work on it then you have to wait on Rheem to ship the part. The part is covered but not the labor so reality is you do not have a full warranty. Would not recommend Rheem
Date published: 2017-05-24
Rated 5 out of 5 by from Two days in Seems to work fine. Unclear just how the warranty works and for how long. Do I have protection plus or what?
Date published: 2017-05-13
Rated 3 out of 5 by from Happy until recently I've been in my new house for 4 years. No problems until the past few days. Unit stopped heating.
Date published: 2017-04-10
Rated 5 out of 5 by from Works great Works great! Exceeds all of my expectations. I would recommend this product to family and friends
Date published: 2017-04-17
Rated 4 out of 5 by from Warranty replacement Our previous one blew out after only 10 years so had to replace it with a like product.
Date published: 2017-05-02
Rated 5 out of 5 by from Great Product I have owned my home for over ten years now, Marathon water heater was there when purchased. To say we have a high iron content is not enough as it will turn brown in under 20 minutes if not softened. I have no smell in the water and have yet to run out of hot water with taking 3 back to back to back showers every morning between myself, wife and daughter " Which uses way to much hot water".. I love it and would recommend to anyone, I have installed hundreds and hundreds of water heaters and have yet to replace a Marathon.
Date published: 2017-09-11
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