Heater Heater Form Box Pipe Size - Minimum 1/2 in Pipe Size - Maximum 6 in Schedule All Preheat Time 10 min Cord Length 5 ft Voltage 230 V AC Wattage 6 600 W Heating Element Type Calrod Current 30 A Features Metal Bending Tool Double Doors with Piano Hinges On/off Switch with Indicator Light Heats 65 in Long Section of Pipe Wheels for Mobility Timer Material Metal with Fiberglass Insulation