5 Things to Know About Extension Cords for Space Heaters
- A 1500W space heater draws about 12.5 amps, which exceeds the safe capacity of most 16-gauge extension cords.
- Standard 16-gauge cords are rated for only 10-13 amps, and that rating drops with longer lengths due to voltage loss.
- Using a 16-gauge cord over 25 feet increases voltage drop, causing the cord to overheat and risking fire or melted outlets.
- Always use a 14-gauge or thicker extension cord for any heater over 1000W to handle the load safely.
- Space heaters are the leading cause of home electrical fires, so never skimp on cord gauge to save a few dollars.