When an appliance demands more power than the extension cord can handle, it results in an overload, which could lead to overheating. You really don't want your cord's insulation to melt ...

While there are many places you should never use extension cords, the appliances that you should avoid plugging into an extension cord include microwaves, air conditioner, refrigerators ...

When extension cords are paired with appliances that have a heating element, it can lead to overheating, burning and ...

"No extension cords whatsoever," he warns for such appliances. When extension cords are paired with appliances that have a heating element, it can lead to overheating, burning and ultimately fires ...