18 Kilowatt, Smart Technology Electric Tankless Water Heater, Configured For Climates Where Incoming Water Temperature Is 62 Degrees & Above, Capable Of Heating Over 2.5 Gallons Per Minute Which Is The Equivalent Of One Shower Head With A 1.5 GPM Flow & 1 Sink With A Low Inlet Water Temperature Of 62 Degrees, 2 Showers Can Be Run Simultaneously When Incoming Water Temperature Is Above 70 Degrees Warmer Climates Such As South Texas, South Florida, New Mexico, Arizona & South California, Digital Temperature Control That Allows You To Set Your Temperature In Increments Of 1. 240 Volt, Requires 2 – 40 amp Double Pole Breakers and 2 – 8 gauge wires.