Electric Tankless Water Heater Operating Voltage 240V AC Phase Single Cold Inlet Size 3/4 in Maximum Flow Rate 3 gpm Minimum Flow Activation 0.3 gpm Overall Height 10.25 in Overall Width 10.75 in Overall Depth 4.5 in Power Consumption 19 000 W Maximum Delivered Temperature 105 Degrees F Minimum Delivered Temperature 110 Degrees F Adjustable Thermostat Yes Current 80 A Environment Indoor Market Commercial Industrial Application Single or Multi-Fixture