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Commercial Marathon 105 Gal. Lifetime 4500/4500-Watt Non-Metallic Electric Tank Water Heater

$154900
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$undefined.00 /mo* suggested payments with months* financingApply Now
  • Plastic tank wont rust; ideal in hard water applications
  • Lightweight tank is easy to maneuver and position
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.
  • See More Details

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Price:
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Product Overview

The 105 Gal. Tall Marathon non-metallic electric water heaters provide 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. Offers Lifetime tank and 6 year parts warranty for installation in Commercial buildings.
  • Offers lifetime and 6 year parts warranty for installation in commercial buildings
  • Thermally-fused upper element protects against dry firing
  • 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
  • Tough molded polyethylene outer shell resists dents, scratches and salt air
  • Recessed brass drain valve is out of the way of brooms and scrubbers
  • Designed for easy replacement of your existing water heater
  • Water heater must be registered online within ninety (90) days of the installation date; lifetime warranties are only available to original occupied dwelling
  • Call 1-855-400-2552 before noon for same-day installation service in most areas, or visit our Water Heater Installation page for more information.
  • California residents

Info & Guides

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Name80 Gal. Lifetime 4500-Watt Electric Water Heater with Durable 316 l Stainless Steel TankCommercial Marathon 105 Gal. Lifetime 4500/4500-Watt Non-Metallic Electric Tank Water Heater100 Gal. Lifetime 5500-Watt Electric Water Heater with Durable 316 l Stainless Steel TankPerformance Platinum 80 Gal. 10-Year Hybrid High Efficiency Smart Tank Electric Water Heater
Price
$138300
$154900
$165100
$237900
Ratings
(400)
(294)
(63)
(1711)
Nominal Tank Capacity (gallons)8010510080
Water Heater ProfileMediumTallMediumTall
Application TypeCommercialCommercialCommercialResidential
Efficiency LevelSuper High Super HighSuper High
Water Heater FeaturesTemperature Pressure Relief ValveOverheat Protection,Temperature Pressure Relief ValveTemperature Pressure Relief ValveGlass-Lined Tank,Overheat Protection,Temperature Pressure Relief Valve,Vacation Mode,WiFi
Fuel TypeElectricElectricElectricElectric
Commercial/ResidentialCommercialCommercialCommercialResidential
Smart Home Smart Home Enabled
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Specifications

Dimensions

Kilo Watt
4.5
Product Depth (in.)
30.25
Product Height (in.)
66.75
Product Width (in.)
30.25 in
Tank Valve Size (in.)
0.75
Water Connection Size (in.)
3/4

Details

Amperage (amps)
18.75 A
Application Type
Commercial
Commercial/Residential
Commercial
Electricity Phase
Single Phase
Finish Family
Gray
First Hour of Delivery (gallons/hr)
104.0
Fuel Type
Electric
Household Size
5+
Indoor/Outdoor
Indoor
Maximum Temperature (F)
181
Minimum Temperature (F)
90
Nominal Tank Capacity (gallons)
105
Number of Elements
2
Pack Size
1
Product Weight (lb.)
152
Recovery Rate at 100F Rise (gallons/hour)
18.2
Required Volt Connection
240 volt
Returnable
90-Day
Tank Lining Material
Glass
Tank Warranty
10 Year
Uniform Energy Factor
0
Water Heater Features
Overheat Protection,Temperature Pressure Relief Valve
Water Heater Profile
Tall
Wattage (watts)
4500

Warranty / Certifications

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

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.6
    out of 646 reviews
  • 91% recommend this product
Filter by:
Showing 1-10 of 646 reviews
Plastic JUNK
I ordered and waited 3 weeks, without hot water, to receive the 85 gallon Marathon tank. I Installed it and the “Vacuum Relief Valve” blew out causing major damage to my drywall. Rheem sent a new valve and I repaired the drywall. After installing it, It also blew out causing more drywall damage. I called Rheem, again, and was told that “I would have to take it to an Authorized Rheem Service Technician and pay to have it repaired”. I returned it to Home Depot for a refund. This is absolute JUNK.
by Rick
    Much less efficient than claimed. Much.
    It's big but a terrible energy hog. I installed it in a not yet occupied house, so the water draw is zero. My unit has 3800 watt elements. I noticed the unit turning on for 5 minutes every half hour. This would equate to an annual energy cost of $555 if electricity costs $0.10kwh. Kind of a normal use case but this with NO use. This was after I turned off the recirculator. Before I did that, the unit turned on every 15 minutes for 5 minutes. The product brochure claims it loses 5 deg. F after 24 hours in "standby." I'm assuming that means "off." I tested the temperature by putting a probe thermometer in the outflow spigot at the bottom and opening it up. It was 133 deg. F. I then cut the power. Exactly 24 hours later the temperature was 104 deg. F. Nearly a 30 degree drop! This was in a 67 deg. F room.
    by art
      5 people found this helpful
      Stopped working after 2 months
      I originally installed this unit on 12/31/2020. It started acting up just 2 months later and after some troubleshooting I identified the upper thermostat was faulty. I reached out to rheem but got no response back. I ended up going to home depot and buying/installing the thermostat because I couldn't have my kids taking cold showers. If rheem responds and stands behind their product I will update this review.
      by Steve
        7 people found this helpful
        Practically brand new and it's leaking
        After installing the 50 gallon unit at one home and having no issues I got the 85 gallon water heater for my other home. Shortly after it was installed it started leaking. There is no water collecting around the top of the heater near the cold water inlet/hot water outlet and there is no water around the pressure relief valve or the drain valve BUT there is water collecting below the unit.
        by GrumpyBill
          10 people found this helpful
          Used it to replace our original 80 gallon heater. Plumber installed, works great.
          Used it to replace our original 80 gallon heater. Plumber installed, works great.
          by WillyHSV
          • Verified Purchase
          • Recommended Product
          1 person found this helpful
          Old heater was on the outs so we looked at all kinds of replacement models. Decided on the Rheem ...
          Old heater was on the outs so we looked at all kinds of replacement models. Decided on the Rheem Commercial series. The reviews were not bad on Home Depot but other sites were less than stellar. The bad reviews seem to coincide with earlier versions. We purchased online and picked it up at the store. Store helped with loading and we lugged it home. Word to the wise this thing is huge, so pay close attention to the dimensions if your replacement is smaller ours was 65 gallon. I installed it myself and this thing is working awesome. My girls are not complaining about running out of hot water anymore and the recovery time on this sucker is quick versus my 15 year old previous heater. Time will tell but so far we are happy with this heater. Do not forget to register your warranty you do get the lifetime if left unregistered.
          by HappyHotHeater
            • Recommended Product
            2 people found this helpful
            I have all the hot water I need when I need it.
            I have all the hot water I need when I need it.
            by Happy
            • Verified Purchase
            • Recommended Product
            1 person found this helpful
            Just installed, had hot water in a couple of hours. Looks like a well made unit, time will tell. ...
            Just installed, had hot water in a couple of hours. Looks like a well made unit, time will tell. The vacuum valve was stuck open/leaked and had to be replaced.
            by Inhotwater
            • Verified Purchase
            • Recommended Product
            1 person found this helpful
            I only have it in service for a few weeks and all I can say at that point is "so far so good". Co...
            I only have it in service for a few weeks and all I can say at that point is "so far so good". Considering how fast it is delivering hot water to my shower it well exceed my expectations. And the installation was very easy.
            by Leonid
            • Verified Purchase
            • Recommended Product
            REGISTER YOUR HEATER ASAP and read the fine print on the "warranty." This water heater was fanta...
            REGISTER YOUR HEATER ASAP and read the fine print on the "warranty." This water heater was fantastic for 4+ years. We are a family of 8 and never ran out of hot water. Then, on a Friday evening the faithful water heater water started to leak. Rheem's customer service hours are Monday - Friday, 9-5. So we went the weekend with no hot water. Made contact with Rheem Monday morning. After many phone calls back and forth between Rheem, then Home Depot, we were informed that we would get back what we paid for it, but that we had to pay out the extra $600+ for the current price. That was a low blow. So much for "Lifetime Warranty." THEN... we ordered our new hot water heater. The website said it would be delivered in 7-10 days. It took Home Depot 11 days to deliver it to store. We were with out hot water for 14 days. Another blow was that we were told we would get a cash refund for our defective heater (so we could immediately apply it to the purchase of our replacement), but when we brought it back and went through return process they were not able to give us a cash refund. Instead they said "we will mail you a check in the next 21 days." Its been 11 days so far and no check. We are floating that $1200+ dollars. Home Depot gets 1 star for how helpful they were in this whole process. (Emily and Paula at customer service in our local store were very nice and helpful.)
            by Afamilyof8
              • Recommended Product
              15 people found this helpful
              Showing 1-10 of 646 reviews