Electric blankets have been keeping Australians warm for decades, but misconceptions about their safety and effects persist. Some of these myths date back to older blanket designs, while others are simply misunderstandings about how modern electric blankets work.
In this article, we separate fact from fiction, debunking common myths while confirming the truths about electric blanket use. Understanding the real risks and benefits helps you make informed decisions about using heated bedding in your home.
Quick Fact Check
- Modern electric blankets are significantly safer than older models
- Proper use and maintenance minimise most safety concerns
- Electric blankets don't cause cancer
- They can actually save you money on heating bills
- Most people can safely use electric blankets with precautions
Myth 1: Electric Blankets Cause Cancer
"Electric blankets emit harmful radiation that causes cancer."
There is no scientific evidence that electric blankets cause cancer. The electromagnetic fields (EMFs) produced by electric blankets are extremely low-frequency and have not been shown to have carcinogenic effects in numerous studies.
This myth likely originated from general concerns about EMF exposure and older, sensationalised media reports. Major health organisations, including Cancer Council Australia, have reviewed the evidence and found no established link between electric blanket use and cancer risk.
Modern electric blankets produce EMFs comparable to other household appliances like hairdryers, toasters, and televisions. The World Health Organization classifies low-frequency EMFs as "possibly carcinogenic," the same category as coffee and pickled vegetables—meaning there's limited, inconclusive evidence that doesn't warrant avoiding these products.
Myth 2: Electric Blankets Are Fire Hazards
"Electric blankets frequently cause house fires."
While electric blankets can be a fire risk when old, damaged, or misused, modern blankets meeting Australian safety standards are designed with multiple safety features that make fires extremely rare.
This myth has some historical basis. Older electric blankets, particularly those from before the 1990s, had fewer safety features and used materials more prone to overheating. However, modern blankets include:
- Automatic shut-off timers
- Overheat sensors that cut power if temperatures exceed safe levels
- Improved wire insulation and construction
- Stricter manufacturing standards
When fires do occur, they're typically associated with blankets that are very old, damaged, improperly used (folded or bunched while operating), or left on for extended periods against manufacturer recommendations.
Myth 3: You Can't Wash Electric Blankets
"Electric blankets can never be washed or cleaned."
Most modern electric blankets are machine washable when the controller is detached. Always check your specific blanket's care label for washing instructions.
This myth probably stems from older blanket designs that weren't water-resistant. Today's electric blankets are designed with washing in mind. The heating wires are insulated and sealed, and controllers are detachable to allow safe washing of the blanket portion.
Key points for washing:
- Always detach the controller first
- Use gentle cycle and mild detergent
- Never dry clean or use bleach
- Ensure complete drying before reconnecting
Myth 4: Electric Blankets Are Expensive to Run
"Electric blankets will significantly increase your electricity bill."
Electric blankets are among the most energy-efficient heating options available. A typical blanket costs only 5-20 cents per night to operate, far less than running central heating.
On a low setting, an electric blanket uses approximately 20-40 watts—about the same as a small lamp. Even on medium settings for pre-warming, you're looking at around 60-100 watts. Compare this to:
- Portable electric heater: 1,000-2,400 watts
- Reverse-cycle air conditioner: 1,000-3,000 watts
- Ducted heating: 3,000-10,000 watts
Many households actually save money by using electric blankets, as they can reduce or turn off room heating overnight while staying warm.
Myth 5: Electric Blankets Are Unsafe for Everyone
"Nobody should really use electric blankets because they're too risky."
Electric blankets are safe for most people when used correctly. However, certain groups should take extra precautions or avoid them, including those with diabetes, paralysis, or who are unable to operate controls.
For the general population, electric blankets pose minimal risk when:
- The blanket meets Australian safety standards
- It's used according to manufacturer instructions
- Regular safety inspections are conducted
- It's replaced when showing signs of wear
Groups who should consult a doctor before use include those with reduced skin sensitivity, circulation problems, or cognitive impairments that might prevent them from responding to overheating.
Myth 6: Electric Blankets Dehydrate You
"Using an electric blanket will severely dehydrate you overnight."
While any warm sleeping environment can increase fluid loss through perspiration, the effect is modest with proper blanket use. Staying hydrated and using appropriate heat settings minimises any impact.
There's a grain of truth here—if you're overheating and sweating throughout the night, you will lose more fluids than sleeping in a cooler environment. However, this is easily managed by:
- Using lower heat settings
- Pre-warming and then turning off the blanket
- Drinking water before bed
- Keeping a glass of water on your nightstand
Myth 7: All Electric Blankets Are the Same
"There's no difference between cheap and expensive electric blankets."
Quality varies significantly between electric blankets. Better blankets offer more safety features, even heat distribution, durable construction, and longer warranties.
Key differences between budget and premium blankets include:
- Safety features: Auto shut-off, overheat protection, low-voltage technology
- Heat distribution: Premium blankets heat more evenly
- Controller quality: Better displays, more settings, longer cords
- Materials: Softer, more durable fabrics
- Warranty: Ranges from 1-2 years (budget) to 5-10 years (premium)
Understanding what's true and what's myth about electric blankets helps you use them confidently and safely. While it's important to follow safety guidelines and replace old blankets, there's no reason to fear modern, properly used electric blankets.