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Marathon Series

Rheem Marathon™ lifetime electric water heaters feature a high-efficiency design with a lightweight tank that won't corrode

 

Features:

  • Seamless, blow-molded, polybutene tank - impervious to rust and corrosion

  • Multiple layers of filament wound fiberglass give the tank unmatched strength

  • Polyurethane Envirofoam™ insulation helps reduce energy consumption

  • The highest energy factors (EF) available!

  • Pipe wrap energy saving kit included to achieve maximum energy savings

  • Recessed drain valve is out of the way of brooms and scrubbers

  • Tough molded polyethylene outer shell resists dents and scratches

  • Bowl shaped bottom allows complete sediment draining

  • High temperature polysulfone dip tubes

  • Thermally fused upper element provides protection against "dry-firing" - stainless steel incoloy lower element for resistance to lime build-up

  • Factory installed conduit between element control boxes

  • All plastic tank eliminates the need for an anode rod

  • Factory installed temperature and pressure relief valve

  • Factory installed vacuum relief valve

 

The Marathon Heavy Duty is available in 85 and 105 gallon electric models

Marathon Series Models
DESCRIPTION ENERGY INFO
TYPE GAL CAP. MODEL NUMBER

ENERGY
FACTOR

ENERGY STAR®
TALL
40 MR40245 0.94  
  50 MR50245 0.94  

85 MR85245 0.92  
  105 MR105245 0.91  
SHORT 50 MSR50245 0.90  

 

Warranties

Lifetime Limited Tank Warranty, 6-Year Limited Parts Warranty

Documents

Marathon Brochure
Marathon Heavy Duty Spec Sheet
Marathon Spec Sheet
Marathon Use and Care Manual
EnergyMiser Gamma UL