Electric Tankless Water Heater Operating Voltage 277V 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 5 540 W Maximum Delivered Temperature 160 Degrees F Minimum Delivered Temperature 110 Degrees F Adjustable Thermostat No Current 20 A Environment Indoor Market Commercial Residential