Lifetime Warranty: It will be the last water heater you will have to purchase for your home

High Efficiency: You will save money on your energy bill as the water stays hot. Thick Envirofoam® insulation allows only 5ºF heat loss in 24-hours!

Lowest total cost of ownership: Marathon efficiency saves energy, and your pocketbook. Our renowned durability eliminates buying a new water heater every 10-years (national average) this also eliminates the cost of re-installing water heater every 10-years or so. Significantly lower total cost & fewer problems than problematic ‘instantaneous’ or ‘tankless’ water heaters

No smelly water: We don’t need an anode rod, so it eliminates rotten-egg smell caused by anode rods found in conventional steel heaters interacting with sulfates found in many water systems.

High-Tech Construction:

• The polybutene inner tank cannot rust or corrode which makes it great for ‘brutal well water’ conditions.
• The filament-wound fiberglass inner tank creates the toughest and strongest tank in the residential water heater industry. All tanks have easy-on/easy-off water connections
• Commercial grade high temperature dip tubes eliminate dip tube failures
• “Self-cleaning’ action caused by true bowl shaped tank bottom coupled with a brass drain valve at the very bottom for more complete draining
• A “car bumper tough” polyethylene exterior resists dents, and bumps

No extra parts to purchase: Your Marathon comes with a factory installed T&P (temperature & pressure relief) safety valve, 4’ of pipe insulation to save energy, and union fittings on all connections

World Class Customer Support: You are backed by ‘world class’ customer service professionals at our Eagan, Minnesota Marathon plant (no 800-lines to India). We’re here to help with: sizing and special applications, technical information, installation advice and troubleshooting.