You can employ an extension cord with Remington heaters with complete peace of mind. However, it’s essential to use an extension cord of the right size. For example – • Use 18 AWG conductor wire for 1.8m to 3m (6 to 10ft)  • Use 14 AWG conductor wire for 30.8m to 61m (101 to 200ft) • Use 16 AWG conductor wire for 3.4m to 30.4m (11 to 100ft).