Are space heaters against fire code?

Author: Ms. Elise Koch  |  Last update: Monday, June 8, 2026

The AHJ is permitted to prohibit the use of space heaters where an undue danger to life or property exists. The AHJ can use past inspection findings, such as portable heaters that were left turned on and unattended, fire incidents, and other reasons to prohibit the use of such heaters.

What is the space heater rule?

Heaters must be kept at least three feet away from anything that can burn, including papers, clothing and rugs. Locate space heaters out of high traffic areas and doorways where they may pose a tripping hazard.

What space heater is not a fire hazard?

Sealed combustion heaters are much safer to operate than other types of space heaters, and operate more efficiently because they do not draw in the heated air from the room and exhaust it to the outdoors.

Are space heaters OSHA approved?

Electrical equipment and wiring must be approved and used in accordance with NEC and local requirements. Non-business related small appliances, such as space heaters, are not permitted in the office unless approved by management.

Why are space heaters not allowed at work?

Portable space heaters can pose a major workplace fire safety hazard. Use of unapproved or unsafe space heaters – or use of space heaters in an inappropriate or unsafe manner - presents a significant fire risk. They are nice to have for extra warmth, but they can cause burns and fires if not used properly.

Verify | Do space heaters catch fire if you plug it into a power strip?

Why are space heaters against the fire code?

Each year, many serious fires result from the improper use of these heaters. Because of their mobility, these stoves pose a hazard when placed near combustible materials or where they can block a means of egress. Portable Electric Heaters (Section 11.5. 3).

Are electric space heaters illegal?

While there are no federal safety rules prohibiting space heaters at a worksite, you should follow local rules and regulations. OSHA also requires businesses to follow all manufacturer specifications on the unit's label and in the user manual when using electrical equipment.

What is a safe alternative to a space heater?

Another alternative to using a space heater is using a duct booster fan. Duct booster fans are blower fans designed to increase airflow through the ductwork. They can be a great help for those hard-to-heat rooms. Add Vent Fans.

How much of a fire hazard is a space heater?

The National Fire Protection Association puts that figure into even starker context, noting that space heaters factor into about 46 percent of home heating-related fires (which includes items like water heaters and fireplaces) and 88 percent of associated deaths.

What is the OSHA indoor heat limit?

Cal/OSHA's Heat Illness Prevention in Indoor Places of Employment regulation applies to most indoor workplaces, such as restaurants, warehouses, and manufacturing facilities. For indoor workplaces where the temperature reaches 82 degrees Fahrenheit, employers must take steps to protect workers from heat illness.

Is it safe to run space heaters all night?

Running a space heater overnight increases the risk of fire. If the unit is left unattended or placed too close to flammable materials, such as curtains or bedding, it can ignite and lead to a devastating fire.

Are modern space heaters safe?

But they can also pose a safety risk no matter where you use them. Portable space heaters were involved in an average of 1,700 house fires a year from 2017 to 2019, according to the most recent statistics from the Consumer Product Safety Commission. These fires resulted in an average of 70 deaths annually.

Are infrared space heaters a fire hazard?

Fire Hazard: One of the foremost concerns surrounding infrared heaters is the risk of fire hazards. Improper usage, flammable materials placed too close to the heater, or malfunctioning components can all lead to catastrophic consequences, posing a significant danger to life and property.

How long is it OK to run a space heater?

During the Day: It's safe to leave your heater on for 6-8 hours if you're in the room.

Are space heaters a fire hazard in work cubicles?

Although they are useful devices, space heaters are high-wattage appliances that can become major fire hazards if not used properly.

Is a radiator heater safer than a space heater?

Health and Safety: Electric radiators are much safer than fan heaters. Fan heaters can be dangerous due to their open heating elements, which can cause burns if touched. Electric radiators, on the other hand, are enclosed, meaning there is no risk of injury from touching the heating element.

What space heaters don't cause fires?

“Oil-filled space heaters are considered safer than others because they don't have exposed heating elements,” Roberson says.

Is it cheaper to turn up the heat or use a space heater?

Using a space heater can be a good way to boost the temperature in a small, drafty room—and it could be less expensive than cranking up your central heating system. But a space heater is economical only if you use it judiciously.

Is it safe to leave a space heater plugged in?

Never leave the space heater unattended. Turn it off when you are leaving the room.

How do you avoid a space heater fire?

Place space heaters on a solid, flat surface. Keep them at least three feet from things that can burn. Check your space heater for cracked or damaged cords and plugs. Plug space heaters directly into wall outlets, don't use an extension cord or power strip.

Where is the safest place to put a space heater?

Make sure your smoke and carbon monoxide detectors are in good working condition before using a space heater. Place the heater out of high-traffic areas and on a level, hard, non-flammable floor surface—NOT on carpets, furniture, or countertops. Never use them to thaw pipes, cook food, or dry clothing or towels.

What is better than a space heater?

Overall, central heating is usually more efficient and safe than relying on space heaters.

What can I use instead of a space heater?

The best gadgets for staying warm at home or the office
  • Hodeamy Heated Floor Mat Under Desk for Foot Warmer - Wider 110V Adjustable Temperature Electric Space Heaters Heating Pad - Carbon Crystal & Energy Saving Feet Warmers for office,home (Black Gray) ...
  • Heated Seat Cover. ...
  • Heated Vest. ...
  • Portable heating pad.

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