Marathon Heavy Duty Electric Water Heaters
Rheem Marathon Heavy Duty models are specifically designed for installation in harsh environments and where high
water temperatures are needed. The Heavy Duty models begin with the proven strength and durability of the
Marathon electric water heaters, and then add titanium sheath elements for superior corrosion resistance at
elevated water temperatures. The combined features provide you with a tank construction that is impervious to rust
and a heating element material that withstands the most extreme water conditions. Utilizing a higher temperature
thermostat, the Heavy Duty models maintain exceptional product life while delivering water consistently at 170° F.
The Rheem Marathon Heavy Duty models have an industry-leading 10-year warranty for the tank and 5-years for parts
making it the BEST value for agricultural processing, restaurants, and other applications with harsh water or
requiring elevated water temperatures.