PowerStar AE-7.2 Electric Tankless Under Sink Water Heater 7.2 kW output tankless electric water heater eliminates long waits for hot water at point-of-use Easy installation under bathroom or kitchen sink Mounts on wall in any direction and is space saving, ultra-compact, and lightweight 98% efficient with minimal stand-by loss Unit operates on 220-volt at 84-percent of capacity and on 208-volt at 75-percent of capacity Eliminates long waits for hot water Easy installation Mounts on wall in any direction 99-Percent efficient This unit will operate on 220-Volt at 84-Percent of capacity and on 208-Volt at 75-Percent of capacity