Plugging these seven devices into an extension cord could lead to dangerous outcomes, an expert warns.

"A lot of people don't have knowledge of extension cords," Martinez says. "If extension cords are 14-gauge and you're running an appliance with a heating element, [like] a toaster oven, microwave ...

or delivering the full amount of power over longer distances, go with a lower gauge extension cord. POWTECH 15 FT Heavy Duty ...

Extension Cord Gauge What You Can Safely Plug In 12- to 10-gauge Space heaters, power tools, and other high-power-draw devices 16- to 14-gauge Lamps, chargers, and other low-power-draw devices ...