Hot Water Boiler, electric, single, automatic, 25 gallon, on/off switch, insulated side & top, top mounted controls, drain valve, faucet guard protector, controlled refill to maintain consistent temperature out of the faucet no matter how full the boiler, stainless steel construction, 6 x 3.0kW heater, 120/208-240v, 3-ph, 4+G wires, 38.2 - 44.0 max amp draw, 13.8 - 18.1kW, terminal block, 34.0 - 45.0 gallons per hour, UL, cUL, NSF