Unintentional fires can ignite without deliberate intent, often catching us off guard and causing extensive damage in their wake. Understanding the most common causes behind these fires can equip us with the knowledge to prevent them and safeguard our surroundings from unforeseen risks. House fires are all too common, with an estimated 382,500 residential structure fires in 2022 alone. By understanding the fire hazards in your home and taking basic precautions, you can help stop devastating fires before they happen.
To help homeowners avoid the devastation of house fires, we share insights into their most common causes. Understanding these risks can empower families to take preventive steps, reducing the chances of experiencing a fire.
The five most common causes of an unintentional fire in the home are as follows:
1. Cooking
Cooking consistently ranks as the top cause of house fires, despite advancements in electric and gas ranges, as well as other appliances. In 2022, cooking was the leading cause of house fires, starting almost half of all fires in the United States. Most of these incidents result from unsafe behaviors, such as leaving the kitchen while cooking, placing combustible materials too near stoves and ovens, and forgetting to turn off kitchen equipment. Flames that start in the kitchen can spread to towels, paper, or other nearby items, often causing extensive damage. Meanwhile, high temperatures can ignite oils or grease, quickly spreading flames.
Unsurprisingly, the number of reported cooking fires peaks during the Thanksgiving and Christmas holidays.
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For safer cooking, keep these tips in mind:
- Never leave your stove, oven, or other cooking appliances unattended while cooking.
- Keep a fire extinguisher nearby.
- Keep flammable items, such as kitchen towels and paper, far from the cooking area.
- Use timers to monitor cooking times.
- Keep children and pets out of the kitchen, especially while cooking.
- Wipe down your stove and oven as built-up food splatter or grease can ignite when the oven or stove is turned on.
- Clean up clutter, such as over mitts, towels, and utensils, from your cooking area.
- Have a fire extinguisher readily available and understand how to use it.
- Set a timer and stay in the kitchen while grilling, frying or broiling food.
- Keep a lid nearby when you're cooking on the stovetop. If a small grease fire occurs, smother it by sliding the lid over the pan. If you can’t properly extinguish the fire yourself, get out immediately!
2. Heating Equipment
Heating equipment, including space heaters, fireplaces, and furnaces, is second among the most common causes of fire in the country. Similar to cooking fires, heating equipment fires follow a seasonal pattern, with more occurring in the winter months than any other time of the year. During the colder months, homeowners rely on these devices to stay warm, sometimes at the cost of fire safety.
Space heaters, in particular, pose a risk if they're too close to flammable objects like blankets, furniture, and curtains. Fireplaces also introduce risk if they're not properly maintained, as creosote buildup in chimneys can ignite and cause a fire. Heating fire hazards in the home include stationary and portable space heaters, as well as fireplaces and central heating systems.
To help prevent fires caused by heating equipment:
- Keep at least three feet between heating equipment and furniture, curtains, and bedding.
- Use heating equipment according to manufacturer guidelines
- Maintain at least three feet of space around heaters.
- Use only space heaters with automatic shut-off functions.
- Schedule annual inspections for fireplaces and chimneys.
- Turn off heaters when leaving the room.
- Keep flammable objects away from heating equipment.
- Have furnaces and chimneys professionally cleaned and inspected every year.
- Never use flammable liquids to start a fire in a fireplace.
- Allow the ashes in your fireplace to cool completely before throwing them out and use a metal bucket for disposal.
- All fireplaces should have a sturdy cover or screen. Never use flammable liquids to start a fire in a fireplace.
- Consider replacing older space heaters with new ones that turn off automatically when overheated or tipped.
3. Electrical Issues
Electrical problems are often hidden from view and can pose a significant fire risk. According to the National Fire Protection Association, an electrical fire breaks out every 10 minutes. Typically, older homes are more at risk, but an electrical malfunction can occur in any home. Older homes may have outdated wiring systems that can't support modern electrical loads, leading to overheating. Frayed cords, faulty outlets, and overloaded circuits are also common culprits. Over time, wiring within walls can degrade, creating an invisible fire hazard.
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Simple steps, such as the following, can help reduce the risk of an electrical fire:
- Avoid overloading outlets and power strips.
- Check cords regularly for signs of wear.
- Arrange for regular electrical inspections, especially if your home is older.
- Watch for warning signs, such as flickering lights and burning smells.
- Electrical cords - look for any fraying or cracking of your cords. If you see any, replace the cord immediately.
- Extension cords - avoid using octopus plugs which allow many cords to be plugged into a single outlet and don't plug too many extension cords together.
- Light fixtures and switches - replace buzzing or sparking switches and watch for panels that are hot to the touch.
Watch for the warning signs of faulty wiring. Protect your home against arc faults. An arc fault occurs when an electrical short produces an arc: intensely hot sparks that can set fire to nearby flammable materials. To help prevent arc faults, have Arc Fault Circuit Interrupters (AFCIs) installed in your home. These devices look and work like conventional circuit breakers.
Power surges can damage electronics, appliances and even cause fires. Smart sensor devices such as Ting, can help detect the invisible dangers lurking in your home. Consider purchasing a Ting smart plug to help monitor your home’s electrical network for any faults that can lead to fires. Ting also monitors the utility grid to help detect faults that could damage your home; all you need is the sensor, a home Wi-Fi network and a smartphone.
Can Water and Electricity Cause a Fire?
A common question among homeowners is: Can water and electricity cause a fire? The answer is yes. When water comes into contact with electrical wiring or outlets, it can create a short circuit, causing sparks that ignite surrounding materials. Even a tiny amount of water can be dangerous if it enters appliances or electrical panels. To minimize the risk, always keep water sources away from electrical systems and ensure all outlets in areas like kitchens and bathrooms have Ground Fault Circuit Interrupters (GFCIs) to help prevent electrical fires caused by water exposure.
4. Smoking Materials
While smoking rates have declined in recent decades, smoking is still a top contributor to house fires. While smoking rates have declined, smoking materials remain a significant cause of residential fires. This risk increases if smoking materials are discarded carelessly or if smokers fall asleep while holding a lit cigarette. Cigarettes, cigars, or pipes that are not fully extinguished can ignite bedding, furniture, trash, and other flammable materials. Many things in your home can catch on fire if they touch something hot like a cigarette or ashes, so if you or someone in your home smokes, remember to:
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- Smoke outside whenever possible.
- Always extinguish cigarettes thoroughly before disposing of them.
- Never smoke in bed.
- Never leave lit smoking materials unattended.
- Avoid smoking near flammable materials.
- Use deep, stable ashtrays to contain embers safely.
- Smoke outside - many things inside your home can catch on fire if they touch something hot like a cigarette or ashes.
- Put cigarettes out all the way - do this every time.
- Don't walk away from lit cigarettes and other smoking materials.
- Be alert - do not smoke after taking medicine that makes you drowsy.
- Never smoke around medical oxygen - as it can explode if a flame or spark is nearby.
5. Candles
Many people use candles for decorative purposes and to create a soft ambiance in their homes. As a source of open flame, candles need to be handled with caution. Unfortunately, when inadequately monitored, they can be a common source of accidental fires. Leaving a candle burning in an unattended room can be dangerous, especially if it's near flammable materials like curtains or upholstery. Additionally, pets or children may accidentally knock candles over, igniting nearby objects.
To ensure safe usage of candles in your home, follow these guidelines:
- Never leave a burning candle unattended.
- Place candles on a solid, level surface to avoid tip overs.
- Leave ample space between the candle and any flammable or combustible items.
- Keep wicks trimmed to within one-quarter inch from the top of the candle.
- Do not allow candles to burn down to the bottom of their container.
- Keep children and pets away from candles.
- For safety, follow these steps:
- Avoid placing candles in high-traffic areas.
- Always extinguish candles before leaving the room.
- Place candles on non-flammable, sturdy surfaces.
- Keep candles away from curtains, furniture, and other flammable materials.
- Consider flameless LED candles as a safer option.
10 Easy Fire Safety Tips For Your Home
How to Prevent House Fires
In addition to the tips outlined above, there are some general precautions you should take to help keep your home and loved ones safe.
Place Smoke Detectors Throughout Your Home
- Install a smoke detector on each level of your home and in each bedroom.
- Ensure your smoke detectors are not too close to windows, vents, or ceiling fans that can blow smoke away from the detector.
- Regularly test your smoke detectors.
- Replace the batteries once a year.
Equip Your Home with Fire Extinguishers
- Place several fire extinguishers throughout your home in accessible locations.
- Select multi-purpose Class ABC extinguishers that are large enough to put out a small fire while remaining easy to handle.
- Make sure that family members know where all fire extinguishers are located and how to use them.
Monitor Your Home’s Electrical Network
- Smart sensors like Ting make it easy to help monitor your home for electrical hazards.
- These sensors can identify potential electrical fire hazards and notify you when there’s an issue.
Other tips
- Clothes dryer - include cleaning the lint trap as part of your regular laundry routine. Left untouched, lint can build up in your dryer duct with every load of laundry.
- Glassware - when sunlight passes through some kinds of glassware, the concentrated rays can ignite flammable materials such as stacks of paper.
- Garbage cans - refrain from disposing cigarette butts and other fire-prone items in your main can.
- Confirm that your live tree is fresh.
If you spot a fire, call 911 immediately. Can't find the source of the smell? Contact your fire department - it's better to be safe than sorry.
The five most common causes of fire-cooking, heating equipment, electrical issues, smoking materials, and candles-pose risks, but small precautions can significantly reduce the likelihood of a fire. Regular safety checks around the home can help prevent residential fires and keep your property and loved ones safe.
By understanding the fire hazards in your home and taking basic precautions, you can help stop devastating fires before they happen.
| Cause | Description | Prevention Tips |
|---|---|---|
| Cooking | Unattended cooking, flammable materials near stoves, grease buildup | Never leave cooking unattended, keep flammables away, clean stove regularly |
| Heating Equipment | Space heaters too close to flammables, unmaintained fireplaces | Keep heaters away from flammables, inspect fireplaces annually |
| Electrical Issues | Outdated wiring, frayed cords, overloaded circuits | Regular electrical inspections, avoid overloading outlets, replace worn cords |
| Smoking Materials | Carelessly discarded cigarettes, smoking in bed | Smoke outside, fully extinguish cigarettes, never smoke in bed |
| Candles | Unattended candles, candles near flammables | Never leave candles unattended, keep away from flammables, use sturdy holders |