This heavy-duty plug-in kit allows you to make the heater portable and includes a #10/3, 30 amp, 8' cord with NEMA #6-30P plug (for use with NEMA #6-30R receptacle) and watertight wiring connector. Wiring is required to connect the cord to the heater. Kit is suitable for wiring heaters up to 6000 watts / 25 amps.