Electric Tankless Water Heater, Operating Voltage 277V AC, Phase Single, Cold Inlet Size 3/4 in, Maximum Flow Rate 4 gpm, Minimum Flow Activation 1.5 gpm, Overall Height 10.25 in, Overall Width 10.75 in, Overall Depth 4.5 in, Power Consumption 16,000 W, Maximum Delivered Temperature 60 Degrees F, Minimum Delivered Temperature 90 Degrees F, Adjustable Thermostat Yes, Current 58 A, Environment Indoor, Market Commercial, Industrial, Application Single or Multi-Fixture