8 Kilowatt, Smart Technology Electric Tankless Water Heater, Configured For Climates Where Incoming Water Temperature Is 67 Degrees & Above, Well Suited For Heating Up To 2 Gallons Per Minute Which Is The Equivalent Of 1 Shower Head With A 1.5 GPM Flow & 1 Sink With A Low Inlet Water Temperature Of 67 Degrees, Digital Temperature Control Allows You To Set Your Temperature In Increments Of 1, Features 1 Heating Element, Uses 1/2" NPT Pipe Fittings, 240V, Requires One 40A Double Pole Breakers & One 8 Gauge Wire.