Electric Tankless Water Heater Point-of-Use Water Heater Application Undersink 5400/7200 Watts Amps AC 30 Voltage 208/240VAC 1 Phase Min Flow Activation 0.69 gpm Temp Range 82 Degrees to 130 Degrees F Water Connection 1/2 in NPT Temp Rise @ 1.5 GPM 25/33 Degrees F Temp Rise @ 6.0 GPM 6/8 Degrees F Temp Rise @ 2.5 GPM 15/20 Degrees F Temp Rise @ 4.0 GPM 9/12 Degrees F Temp Rise @ 8.0 GPM 5/6 Degrees F Commercial Elements Copper Sheathed Housed in Cylinder