Electric Tankless Water Heater Operating Voltage 480V AC Phase Three Cold Inlet Size 3/4 in Maximum Flow Rate 4.5 gpm Minimum Flow Activation 0.35 gpm Overall Height 15.25 in Overall Width 17.5 in Overall Depth 6.25 in Power Consumption 24 000 W Maximum Delivered Temperature 160 Degrees F Minimum Delivered Temperature 70 Degrees F Adjustable Thermostat Yes Current 29 A Environment Indoor Market Commercial Residential Application Mop Sinks Showers Whole Home