Marathon water heater family

Welcome! I Love Water Heaters is a website for consumers and contractors to learn and share information about environmentally friendly Marathon water heaters. Rheem Marathon water heaters are the most durable electric water heaters available in the United States today. Marathon water heater tanks are ten times stronger than conventional steel tanks and carry a lifetime warranty against rust and corrosion. Made in Eagan, Minnesota Marathon water heaters are available anywhere in the continental USA.

We provide information and know-how on the full range of Marathon water heaters and replacement parts such as thermostats and Marathon water heater elements. With thousands of water heaters installed, Rheem Marathon water heaters have a successful track record of almost 30 years.

Marathon water heaters are an excellent product choice for homes, condos, apartments, and commercial applications. Marathon water heaters are available in 8 different sizes from a 15 gallon point of use water heater to a super-sized 105 gallon water heater tank.


From planning to purchase, this site contains the information necessary to help you make an educated decision for your next water heater purchase. Please join the conversation on our blog. Want to share your Marathon story or the pictures of your installation? Send us an email


Marathons are built for efficiency
and durability. From their corrosion
resistant tanks to their Envirofoam™
Marathons can’t be beat.


Marathon offers a diverse product
offering. Residential, Commercial,
Heavy Duty and Thermal Storage
Tanks are all available.

Where to Buy

Purchasing a Marathon Electric water heater
is simple. Why wait any longer?
Purchase your new efficient Marathon