The Rheem Performance 50 gal. Electric medium water heater provides an ample supply of hot water for households with three to five people. This unit comes with two 4500 watt elements and an automatic thermostat which keeps the water at the desired temperature. A 240 volt electrical connection is required for installation. Factory installed temperature and pressure relief valve and 3/4 in. water connections are included with the water heater for easy installation. This model has a 6 year limited tank and parts warranty plus a 1 year in home labor warranty.