Electric Tankless Water Heater Point-of-Use Water Heater Application Sanitation Commercial Watts - Water Heaters 54 000 Amps - Water Heaters 150 Voltage - Water Heaters 208 Min Flow Activation 1.50 gpm Phase - Water Heaters 3 Temp Range - Water Heaters 0 Degrees to 180 Degrees F Water Connection 1-1/4 in NPT Temp Rise @ 1.5 GPM 245 Degrees F Temp Rise @ 6.0 GPM 61 Degrees F Temp Rise @ 2.5 GPM - Water Heaters 147 Degrees F Temp Rise @ 4.0 GPM 92 Degrees F