HPHE6266H045DV American Water Heater 66 Gallon Residential Hybrid Electric Heat Pump Water Heater The Hybrid Electric heat pump water heater from American is the most cost effective energy-efficient option available for consumers who want to save money on their utility bills. Features:ENERGY STAR® qualified6-Year Limited Tank Warranty, 6-Year Parts Warranty, 1-Year Labor Warranty for Residential applicationsDual 4500 watt Copper sheathed backup heating elementsAdvanced electronic control system provides large LCD display for ease of use, precise temperature control and operational statusGlass-lined tank with CoreGard anode rod protects against corrosionEnvironmentally-Friendly Non-CFC foam insulationFactory-installed temperature & pressure (T&P) relief valve Four Operating Modes:High Efficiency (heat pump onlyHybrid (heat pump plus electric)Conventional (electric only)Vacation