FETCO, HWB-25 (H25021), 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 4.0kW heater, 120/208-240v, 3-ph, 4+G wires, 50.7 - 58.5 max amp draw, 18.3 - 24.1kW, terminal block, 45.0 - 60.0 gallons per hour, UL, cUL, NSF