Electric Tankless Water Heater Point-of-Use Water Heater Application General Purpose Commercial Watts - Water Heaters 24 000 Amps - Water Heaters 67 Voltage - Water Heaters 208 Min Flow Activation 0.70 gpm Phase - Water Heaters 3 Temp Range - Water Heaters 100 Degrees to 140 Degrees F Water Connection 1/2 in Compression Temp Rise @ 1.5 GPM 108 Degrees F Temp Rise @ 2.5 GPM - Water Heaters 66 Degrees F Temp Rise @ 4.0 GPM 43 Degrees F