Electric Tankless Water Heater Point-of-Use Water Heater Application Undersink 6000 Watts Amps AC 22 Voltage 277VAC Min Flow Activation 0.50 gpm Temp Range 135 Degrees F Water Connection 1/2 in NPT Temp Rise @ 0.5 GPM 82 Degrees F Temp Rise @ 1.5 GPM 27 Degrees F Temp Rise @ 2.5 GPM 16 Degrees F Temp Rise @ 4.0 GPM 10 Degrees F Temp Rise @ 20.0 GPM 25A Commercial/Residential Elements Solid Copper Heat Exchanger and Copper Sheathed Heating Element