The typical lifespan of a standard Rheem Performance water heater ranges from six to ten years for tank-style gas and electric models, assuming regular annual maintenance is performed. Factors that significantly influence this lifespan include local water hardness, tank flushing frequency, operating temperatures, and whether the sacrificial anode rod is inspected and replaced before total depletion occurs. Hard water accelerates mineral scaling at the bottom of the tank, which forces burners or heating elements to work harder and shortens equipment life. Pairing the unit with a water softener greatly enhances longevity.
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