Electric Tankless Water Heater, Operating Voltage 240V AC, Phase Single, Cold Inlet Size 3/4 in, Maximum Flow Rate 5 gpm, Minimum Flow Activation 0.34 gpm, Overall Height 9.88 in, Overall Width 10.63 in, Overall Depth 4.25 in, Power Consumption 18,000 W, Maximum Delivered Temperature 160 Degrees F, Minimum Delivered Temperature 70 Degrees F, Adjustable Thermostat Yes, Current 75 A, Environment Indoor, Market Commercial, Residential