9 Things You Should Never Plug Into a Power Strip

Protect Your Home, Your Electronics, and Your Family from Hidden Electrical Hazards

Every day, millions of people rely on power strips to keep their homes organized. They're convenient, affordable, and seemingly harmless. Whether they're tucked behind a television, under a desk, or beside your bed, power strips have become an essential part of modern living.

But here's the shocking truth: using a power strip incorrectly is one of the leading causes of preventable electrical fires.

Many homeowners unknowingly overload power strips with appliances that demand far more electricity than these devices were designed to handle. The result can be overheated wiring, melted plastic, damaged electronics, or even devastating house fires.

According to fire safety experts, extension cords and power strips are meant for temporary or low-power electronics—not for high-wattage appliances that generate heat or require significant electrical current.

If you've ever plugged multiple household appliances into one strip just to save outlets, you may be taking a bigger risk than you realize.

Let's explore the nine things you should never plug into a power strip—and why doing so could put your home at risk.

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1. Refrigerators and Freezers

Your refrigerator works around the clock, cycling its compressor on and off throughout the day. Every time that compressor starts, it draws a large surge of electricity.

Power strips aren't built to handle these repeated power spikes.

Using one can lead to:

• Overheating
• Voltage drops
• Damaged compressor
• Electrical fire risk

Manufacturers almost always recommend plugging refrigerators directly into a wall outlet.

If your refrigerator shares a power strip with other appliances, it could overload the circuit without warning.

Rule: Always use a dedicated wall outlet.

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2. Microwave Ovens

Microwaves may look small, but they're among the biggest energy users in the kitchen.

Many models require:

• 1,000 to 1,500 watts
• High startup current
• Continuous heavy load while operating

A typical household power strip simply wasn't designed for this level of power.

Using one may cause:

• Melted plugs
• Hot cords
• Tripped breakers
• Internal damage to the strip

If your microwave runs several minutes each day, the repeated heat buildup inside the strip can shorten its lifespan dramatically.

Always plug microwaves directly into a grounded wall outlet.

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3. Coffee Makers

That morning cup of coffee may come with an unexpected electrical hazard.

Coffee makers contain heating elements that consume large amounts of electricity while brewing.

Many people assume that because the appliance is small, it's safe for a power strip.

Unfortunately, that's often not true.

Heating appliances create sustained electrical loads, causing inexpensive strips to overheat.

The danger increases if several kitchen appliances share the same strip.

Instead, give your coffee maker its own wall outlet.

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4. Air Fryers

Air fryers have exploded in popularity, but they also rank among the highest-powered countertop appliances.

Many consume:

• 1,200–2,000 watts

Their heating elements cycle repeatedly while cooking, generating heavy electrical demand.

Power strips may become dangerously hot under these conditions.

Some warning signs include:

• Warm plugs
• Burning smell
• Flickering power
• Plastic discoloration

If you notice any of these signs, unplug the strip immediately.

Air fryers belong directly in a wall outlet.

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5. Portable Space Heaters

This is perhaps the most dangerous mistake homeowners make.

Space heaters are responsible for thousands of home fires every year.

Many require:

• 1,500 watts
• Continuous operation
• High current

Power strips often cannot safely handle that amount of electricity for extended periods.

As the strip heats up, plastic components can melt while wiring inside begins to fail.

Experts strongly advise:

Never plug a space heater into a power strip or extension cord.

Instead:

• Use a wall outlet
• Keep the heater three feet from anything flammable
• Never leave it unattended

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6. Hair Dryers and Curling Irons

Bathroom outlets are often limited, tempting many people to use power strips.

Unfortunately, hair dryers draw enormous amounts of electricity.

Some exceed:

• 1,800 watts

Curling irons and flat irons also generate heat continuously.

Combined with moisture in bathrooms, overloaded power strips become even more hazardous.

Always plug beauty appliances directly into a GFCI-protected bathroom outlet.

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7. Toasters and Toaster Ovens

Like coffee makers and air fryers, toasters use heating elements that demand significant power.

A toaster may operate only a few minutes at a time, but during those minutes it draws a very heavy electrical load.

Toaster ovens consume even more electricity.

Using both simultaneously on the same strip dramatically increases overheating risk.

Kitchen safety experts recommend avoiding power strips entirely for these appliances.

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8. Washing Machines

Modern washing machines include:

• Powerful motors
• Water pumps
• Electronic controls
• Heating elements (on some models)

Startup surges place heavy stress on power strips.

Because washing machines operate near water, any electrical failure becomes especially dangerous.

Most manufacturers recommend a dedicated grounded outlet.

If your laundry room lacks one, consult a licensed electrician rather than relying on a power strip.

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9. Another Power Strip (Daisy Chaining)

This final mistake is surprisingly common.

Imagine one strip plugged into another...

...then another.

Before long, dozens of devices depend on a single wall outlet.

This practice is called daisy chaining, and fire departments strongly discourage it.

Why?

Because each strip adds more electrical load without increasing the capacity of the original outlet.

The result can be:

• Overloaded circuits
• Excessive heat
• Melted wiring
• Fire

If you constantly run out of outlets, installing additional wall outlets is far safer than stacking multiple power strips together.

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Warning Signs Your Power Strip Is Overloaded

Don't ignore these warning signals:

• The strip feels hot to the touch.
• You smell burning plastic.
• Lights flicker.
• Breakers trip frequently.
• The cord becomes warm.
• Outlets appear discolored.
• You hear buzzing or crackling sounds.
• The strip repeatedly shuts off.

If you notice any of these, unplug the strip immediately and inspect both the strip and the connected devices.

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What Is Safe to Plug Into a Power Strip?

Power strips are ideal for low-power electronics such as:

• Phone chargers
• Laptop chargers
• Computer monitors
• TVs
• Streaming devices
• Printers
• Speakers
• Lamps
• Routers
• Gaming consoles (if the strip is rated appropriately)

These devices generally consume much less electricity and are well within the design limits of a quality surge-protected power strip.

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Tips for Using Power Strips Safely

To reduce the risk of electrical problems:

• Buy UL- or ETL-listed power strips from reputable manufacturers.
• Never exceed the strip's rated wattage or amperage.
• Replace damaged or worn strips immediately.
• Keep strips dry and well-ventilated.
• Never cover them with rugs, furniture, or blankets.
• Avoid using extension cords as permanent wiring.
• Unplug high-power appliances when not in use if recommended by the manufacturer.
• Inspect cords regularly for cracks, fraying, or discoloration.

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Final Thoughts

Power strips are incredibly useful, but they're not designed to power every appliance in your home. High-wattage devices such as space heaters, microwaves, refrigerators, air fryers, and hair dryers demand more electricity than most power strips can safely provide. Ignoring these limits can lead to overheating, damaged equipment, or even a house fire.

A simple habit—plugging heavy-duty appliances directly into a properly grounded wall outlet—can significantly reduce electrical risks and help protect both your home and your family.

The next time you're tempted to free up an outlet with a power strip, take a moment to consider what you're plugging in. That small decision could make all the difference.