Are Heated Blankets Safe? Here's What Electricians and Safety Experts Say

When temps turn frigid outside or you simply feel like being as cozy as can be, there’s nothing better than curling up with an electric blanket. Heated blankets offer you a customizable source of warmth that's comfortably soft, and they can even help you cut down your electric bill by offering the opportunity to turn down the thermostat. However, heated blankets are also the subject of numerous safety concerns.

Electric blankets can pose a potential fire hazard, which gives many people pause. So we turned to fire safety experts and professional electricians to find out how safe it is to snuggle up with a heated blanket.

Safety Concerns Surrounding Heated Blankets

While heated blankets look like regular blankets, their internal wires heat up when connected to a power source. This is great for keeping warm, whether used as a throw, above your top sheet, or even between your fitted sheet and your mattress—but there are a few major safety concerns that come with that, too.

Overheating

The number one concern when using an electric blanket is that it has the potential to overheat. While more modern electric blankets have automatic shut-off features, older models may not. This can pose a fire hazard if left on too long.

“A blanket can become overheated and present a fire hazard if it is kept on for an extended period of time or [the fabric] is gathered in one area,” says Paul Christofi, the chief business development officer at FC Fire Prevention.

Faulty Wiring

It’s important to remember that, despite their cozy exterior, heated blankets are filled with wiring. “If the blanket is old or has worn cables, electrical problems may be on the horizon,” shares Christofi.

If you notice peculiar hot spots or exposed wires and continue to use the electric blanket, you're risking a potential fire.

Damaged Cord

Your electric blanket’s cord is what connects it to a power source, and if it’s damaged you may be putting your safety at risk. “If the cord is worn out, it’s a fire waiting to happen,” says Ryan Gregor, owner and head electrician at RCG Electrical. A frayed, worn out, or otherwise damaged cord is a sign you should no longer be using your electric blanket.

Health Concerns

Certain groups, like pregnant people or those with certain health conditions, should stay away from electric blankets altogether. People in these groups want to be careful to avoid becoming overheated as excessive heat can cause health complications, says Mock. Safer alternative heat sources include a hot water bottle or an electric space heater.

How to Use Heated Blankets Safely

Despite the understandable safety concerns, electric blankets can, in fact, be used safely. “Overall, modern heated blankets can be quite safe, thanks to features such as automatic shut-off and temperature settings,” says Christofi.

If you love cuddling up under a warm and toasty electric blanket, follow these important safety tips.

Invest in a High-Quality Electric Blanket

Because one of the most common issues with electric blankets is faulty wiring, be sure that the one you’re using is good quality and from a reputable brand. Some key indicators that an electric blanket is of higher quality include having multiple heat settings, durable fabric, and a timer function. Some heated blankets also come with safety certifications, which are always a good sign.

Follow the Instructions

Every heated blanket comes with specific instructions for how to use it properly, but there are some general rules to keep in mind. “Most electric blankets are designed to be rolled or hung up when not in use, since folding or bunching them can damage the heating wires,” says Daniel Mock, vice president of operations at Mister Sparky Electricians.

The same applies while the blanket is in use. “Use it flat, not bunched up,” advises Gregor. And most importantly, turn it off and store it away from children when you’re not using it.

Check the Wiring

Old, damaged, or faulty wiring is responsible for many safety issues that arise, so checking over the wiring before using your electric blanket is key. “Look it over for frayed spots or exposed wires before plugging it in,” says Christofi.

Pay close attention to the cord, especially if you have pets or small children who may have had the opportunity to chew or play with it. Also avoid running the cord under your mattress or carpet, as this can speed up its deterioration, adds Mock.

Preheat Your Bed

Even the best quality, well-functioning heated blanket can become a safety risk if it’s not used correctly, especially at bedtime. “We recommend using electric blankets to pre-heat the bed, then stowing them before you actually climb in,” says Mock. Be mindful to not leave any heat-sensitive items above or below your electric blanket while it's in use.

Replace It When Necessary

If your electric blanket becomes damaged or stops working as it should, replace it to avoid risking a fire. "Blankets that are more than three years old should be checked carefully," advises Mock. "Once they hit a decade of service, it's time to retire them even if they still appear to be in good shape."