description Rheem Marathon Overview
The Rheem Marathon is an American-made electric storage water heater. Its notable feature is its large tank capacity, providing ample hot water for larger households and offering energy efficiency through heat retention. It's designed for residential use, particularly suitable for families needing substantial hot water supply and those seeking a durable, nonmetallic alternative to traditional gas models.
help Rheem Marathon FAQ
Why does the Rheem Marathon use a nonmetallic tank?
Its inner tank is made from a corrosion-resistant polymer rather than conventional steel. This eliminates the steel-tank rust mechanism and means the Marathon does not use a sacrificial anode rod.
Does a Rheem Marathon need an anode-rod replacement?
No, its nonmetallic tank does not require the anode rod used to protect ordinary glass-lined steel tanks. Owners still need to maintain components such as heating elements, thermostats, and the temperature-and-pressure relief valve.
Can a Rheem Marathon fit where a normal electric water heater stood?
Often it can use a conventional electric storage-heater connection, but its dimensions may differ from a standard steel tank of the same nominal capacity. The installer should check doorway clearance, pan size, electrical supply, and the unit's height before purchase.
How is the Marathon different from Rheem ProTerra?
Marathon emphasizes a durable nonmetallic storage tank and conventional electric resistance heating. ProTerra adds a heat pump for lower electricity use but requires airflow, produces condensate, and contains a fan and compressor.
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