Marathon water heater – Warranty Information

Rheem Marathon water heaters are designed to operate for a lifetime. Our warranty proves it.

Residential Warranty

For the length that you own your home, your Marathon tank is warranted not to sprout any leaks *

Each Marathon water heater’s advanced, maximum strength design is what makes this no-leak warranty possible. The PermaGuard water heater tank is built from a seamlessly blow-molded polybutene tank surrounded by a filament wound fiberglass outer tank to ensure outstanding endurance and resistance. Marathon water heaters offer the highest caliber of efficiency and performance, for life!*

*For comprehensive warranty information see the Warranty Information Brochure.

Agricultural, Business and Multifamily Warranty

Marathon offers the most durable water heaters available for excessive usage and extreme temperature scenarios.

Marathon water heaters are capable of maintaining high efficiency and long lasting durability through the most strenuous of applications. Whether you require optimal performance through the extreme temperatures of a commercial site, great water exposure and demand of agricultural practices or the frequent wear and installations of an apartment complex, Marathon water heaters will not quit. Marathon heaters not only brings a proven history of resilience through the harshest environments to the table but also an unprecedented ten year warranty.*

*For comprehensive warranty information see the Warranty Information Brochure.

Parts Warranty

For all residential applications the component parts to your Rheem Marathon water heater (items such as thermostats, elements, etc.) are warranted for a period of six years from the date of manufacture. For agricultural applications the same applies but the time period is modified to be three years from the date of installation.*

*For comprehensive warranty information see the Warranty Information Brochure.