Electric Tankless Water Heater, Operating Voltage 208V AC, Phase Single, Cold Inlet Size 3/8 in, Maximum Flow Rate 1.5 gpm, Minimum Flow Activation 0.35 gpm, Overall Height 6.25 in, Overall Width 9.63 in, Overall Depth 2.75 in, Power Consumption 4,160 W, Maximum Delivered Temperature 160 Degrees F, Minimum Delivered Temperature 110 Degrees F, Adjustable Thermostat No, Current 20 A.