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