Rheem_Pool_Spa_6350_Heat_PumpRheem pool heaters provide year-round comfort for your pool or spa and are unmatched in features and benefits. They are designed to make your pool or spa the most comfortable place on earth. A Rheem heat pump can turn your backyard pool investment into resort-style living almost year round. Get the most out of your pool by keeping it comfortable and open longer. Rheem heat pumps give you the flexibility of warming your pool water in the months before and after your normal swim season.