Power strips are convenient, but they’re not meant for everything. Plugging the wrong devices into them can cause overheating, electrical fires, or damage to your appliances. Here are the main things you should never plug into a power strip:
1. High-wattage heating appliances
Anything that produces heat draws a lot of power and can overload a strip.
- Space heaters
- Electric kettles
- Toaster ovens
- Microwaves
- Air fryers
- Hair dryers / curling irons
These are best plugged directly into a wall outlet.
2. Large kitchen appliances
Even if they don’t “heat” constantly, they still use heavy current.
- Refrigerators
- Freezers
- Dishwashers
- Washing machines
These often require dedicated circuits.
3. Major power tools
Tools that spike power usage can quickly exceed a strip’s limit.
- Table saws
- Air compressors
- Welders
- Heavy-duty drills
4. Another power strip (daisy-chaining)
Plugging one strip into another is a major fire risk. It can overload the wiring without you realizing it.
5. Medical equipment
Devices like oxygen concentrators or CPAP machines should always be plugged directly into a wall outlet (and ideally a backup power source if needed).
6. Anything with a damaged plug or cord
Even if the device is low-power, damaged wiring increases the risk of sparks or short circuits.
Quick rule of thumb
If it heats, cools, or has a motor, it probably doesn’t belong on a power strip.
If you want, I can help you figure out whether a specific appliance in your home is safe to use on one.
