Model # MSR50245

Internet #202584260

Store SO SKU #1000833179

Rheem Marathon 50 Gal. Short 4500/4500-Watt Elements Non Metallic Lifetime Electric Tank Water Heater
0020352473369

Rheem

Marathon 50 Gal. Short 4500/4500-Watt Elements Non Metallic Lifetime Electric Tank Water Heater

  • Plastic tank wont rust; ideal in hard water applications
  • Make sure it fits: measure your space to ensure dimensions fit
  • Call for an Installation Quote at 1-855-400-2552
$ 1299 99
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Frequently Bought Together

Frequently Bought Together

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Product Overview

  • Plastic tank wont rust; ideal in hard water applications
  • Make sure it fits: measure your space to ensure dimensions fit
  • Call for an Installation Quote at 1-855-400-2552
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 (registration required)
  • 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
  • California residents see Prop 65 WARNINGS

Product Overview

  • Plastic tank wont rust; ideal in hard water applications
  • Make sure it fits: measure your space to ensure dimensions fit
  • Call for an Installation Quote at 1-855-400-2552
Model #: MSR50245
Internet #: 202584260

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 (registration required)
  • 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
  • California residents see Prop 65 WARNINGS

Info & Guides

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Brand Rheem Rheem Rheem Rheem
Name Performance 38 Gal. Short 6 Year 4500/4500-Watt Elements Electric Tank Water Heater Performance 47 gal. Short 6-Year Electric Water Heater Marathon 50 Gal. Tall 4500/4500-Watt Elements Non Metallic Lifetime Electric Tank Water Heater Marathon 50 Gal. Short 4500/4500-Watt Elements Non Metallic Lifetime Electric Tank Water Heater
Price
$398.72
$533.70
$1,192.01
$1,299.99
Ratings (1250) (35) (64) (233)
Wattage (watts) 4500 4500 W 4500 4500
Product Width (in.) 23 26.25 in 23.5 28.25 in
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
Water Heater Profile Short Short Tall Short
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
Finish Family
Gray
First Hour of Delivery (gallons/hr)
41
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 volt
Returnable
90-Day
Tank Lining Material
Glass
Tank Warranty
Lifetime
Uniform Energy Factor
0.9
Water Heater Features
Overheat Protection,Temperature Pressure Relief Valve
Water Heater Profile
Short
Wattage (watts)
4500
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
Finish Family
Gray
First Hour of Delivery (gallons/hr)
41
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 volt
Returnable
90-Day
Tank Lining Material
Glass
Tank Warranty
Lifetime
Uniform Energy Factor
0.9
Water Heater Features
Overheat Protection,Temperature Pressure Relief Valve
Water Heater Profile
Short
Wattage (watts)
4500
Wattage (watts)
4500

Warranty / Certifications

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

Questions & Answers

If on City water, does this need an expansion tank? If so, which one is recommended please.

If on City water, does this need an expansion tank? If so, which one is recommended please.
Asked by: LEDFan
With city water you most probably have some type of back flow preventer that will not allow water flow back into the city piping. Thermal expansion from heating cold water in your heater could cause excess pressure to develop. So an expansion tank should be used to absorb this pressure. I was also on city water (with a backflow preventer), so I added a 2.1 gal expansion tank. It has a pressure rating of 150psi and was Tee'd into the cold water supply at the water heater. My water pressure runs at 60 psi, so I adjusted the "air side" of the expansion tank to 60 psi prior to installation. Everything is working as expected after 16 months. More details of all this are found on p6 of the installation instructions.
Answered by: JCP
Date published: 2019-02-18

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
Go here and you'll see Matt Risinger cut one open and they measured it at 3" from outside jacket to inside jacket.: https://www.youtube.com/watch?v=rkpWbRHsVHg
Answered by: ejk
Date published: 2018-07-17

Need the upper heating element for this water heater. Rheem says item SP1053-008 but am unable to...

Need the upper heating element for this water heater. Rheem says item SP1053-008 but am unable to find it and they have it backordered for the last 3 weeks. Does anyone know which element at home depot will work with this?
Asked by: Homeowner
Hi, So far my water heater is still running normal. I haven't replace any part. You are probably under waranty. I know that you say that they have it in backorder. My best suggestion for your problem, is to get a universal heater element that holds 4500 watt. Take the broken heater element to the store to match the thread size. Then ask Rheem for a reimbursement. Good luck.
Answered by: Israel
Date published: 2018-11-22

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
The short tank has a larger diameter to make up for the lack of height. If your space is much larger than the heater, then it probably doesn't matter. But if you are restricted in the width of the space, then you may want the taller version. Also, the shorter tank will be a bit more difficult to strap to the wall (you will end up putting one of the straps over the top heating element).
Answered by: homeimprovement
Date published: 2018-09-18
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Customer Reviews

Marathon 50 Gal. Short 4500/4500-Watt Elements Non Metallic Lifetime Electric Tank Water Heater is rated 4.5 out of 5 by 233.
Rated 2 out of 5 by from Our Marathon water heater produced hot water at 148 degrees... Our Marathon water heater produced hot water at 148 degrees F. The folks at Customer Service suggested the issue could be a "grounded element" so they promptly sent us a new one. Did not resolve the issue. Sent new thermostat. THREE visits by plumber at our expense. We are not pleased.
Date published: 2019-02-22
Rated 5 out of 5 by from Sturdy well built easy to install, heated up pretty quick... Sturdy well built easy to install, heated up pretty quick
Date published: 2019-02-07
Rated 5 out of 5 by from Just installed looks great ... Just installed looks great
Date published: 2019-01-24
Rated 5 out of 5 by from The best water heater... The best water heater
Date published: 2019-02-07
Rated 5 out of 5 by from Excellent Replacement for all electric home While I am going to say I think the price of this item is absurd due to fact regular hot water tanks of the same size are half this price--I am hopeful the savings in our electric bill will outweigh the initial cost. These come with lifetime warranty IF they are installed as per manufacturer instructions. Use the flexible lines, etc. That isn't a big deal, slightly more costly than copper line direct from the tank. We also live in a 207 yr old home with very low cellar. We needed the option of the short tank to fit in our cellar. It was a most Excellent choice. We had a 13 year old 80 gallon tank that was so corroded on the bottom it finally just stopped heating water. We felt with our terrible hard water this was the only solution. Thus far our electric bill has dropped significantly with this new tank installed. I would suggest anyone with all electric home and hard water buy one of these. You will not regret it!
Date published: 2012-06-19
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 The best water heater we've ever owned This is by far the very best water heater we have ever owned. We installed a 50 gal unit, 11 years ago, and still today we have had to do nothing to it at all. No leaks, rust, just good efficiency. We are adding on to the house and glad homedepot sells these now since this price is way better than what we paid over 11 years ago. Glad to see them selling these.
Date published: 2011-10-28
Rated 1 out of 5 by from Faulty vacuum valve – beware Back in March of 2013, I bought a 50 gal. short model electric water heater and I recently discovered (Dec. 2015) that there was a small amount water leaking from the vacuum relief valve on the top of the unit. After some research, my contractor found out that is a common problem, contacted Rheem and they immediately sent out a replacement part at no cost. Unfortunately, I still ended up having to pay almost $400 in labor to replace a faulty vacuum valve that was a little more than 2 years old. I hope this will fix the issue, but I will have to continuously check the water heater for any leaks from this particular valve. Other reviewers have mentioned that they had to replace this part multiple times – which ends up being more costly than buying a regular water heater.
Date published: 2016-02-09
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