Improperly vented (and unvented), blocked, separated, rusted, or corroded small space heaters may emit dangerous levels of carbon monoxide (CO) and other gases into the home, causing sickness and death.
While electric space heaters do not produce carbon monoxide (CO), non-electric space heaters (propane gas, natural gas, kerosene, wood) can if incomplete combustion occurs. If these types of heaters are in use, it is recommended that a working CO detector be used to indicate the presence of high-level CO gas.
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.
Regularly inspect your heater for signs of wear or malfunction, such as yellow or flickering flames, which can indicate incomplete combustion and higher pollutant levels. Installing carbon monoxide detectors near the heater and in sleeping areas can provide an early warning of dangerous gas levels.
Space heaters often cause very dry air; this can irritate your sinuses, dry your lips and skin and cause other irritating conditions like nosebleeds and rashes. They can also dry your eyes, making it harder to see clearly after a long day.
Always plug electric space heaters directly into a wall outlet and never into an extension cord or power strip, to prevent overloading and causing a fire. Never leave portable heaters on while sleeping.
Overusing the heater or using an oversized heater can result in elevated levels of carbon monoxide or nitrogen dioxide fumes in the air. These fumes can cause cold or flu-like symptoms, headaches, and eye, nose and throat irritation. Don't use these heaters as your main heat source, even during power failures.
These important steps can help protect against CO poisoning: Have your furnace and fireplace cleaned and checked before each heating season. Only use fuel-burning space heaters in well-ventilated areas. Electrical space heaters pose no danger of carbon monoxide poisoning, unlike those that burn fuels, such as kerosene.
The most common symptoms of CO poisoning are headache, dizziness, weakness, upset stomach, vomiting, chest pain, and confusion. CO symptoms are often described as “flu-like.” If you breathe in a lot of CO, it can make you pass out or kill you.
The soot stain can have a black, brown or even yellow color. Smell: While carbon monoxide doesn't emit odor, it may get accompanied by other exhaust gases that produce an odor. A yellow burner flame: The pilot flame may produce an unusual yellow flame instead of the normal blue one.
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. They are also less likely to backdraft and adversely affect indoor air quality.
You Should Not Leave Space Heaters on Unattended
We do not recommend using space heaters at all because of this risk, but you definitely should not use them at night. If your home is too cold at night, you may want to consider adjusting your thermostat to better meet your needs.
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.
The best way to prevent a fire is to never leave a space heater running in a room unattended—that way, if anything does go wrong, you can take action quickly.
Absolutely. The US Department of Energy records about 25,000 house fires every year that are linked to a space heater fire.
Go to the Home app on your iPhone or iPad. , then tap Home Settings. Tap Safety & Security. Tap Sound Recognition, then turn on Smoke & CO Alarm.
Oxygen therapy allows your body to get rid of carbon monoxide faster than just breathing the air around you. In contrast, the half-life of carbon monoxide without using oxygen is 320 minutes—more than five hours to reduce levels by half.
Room heaters can cause dryness in the air, which can result in dry skin, dry eyes, and dry throat. This can further lead to respiratory issues, nasal congestion, and increased susceptibility to infections.
Fires are one of the biggest risks associated with leaving electric heaters on all night. If an electric heater has frayed wiring or malfunctions, then there is a high chance of it igniting. Electric heaters also make the air in the room really dry by conducting a lot of heat.
Don't leave the heater unattended for long
Always remember to switch off and unplug the appliance before leaving the room or going to bed. Prolonged usage of heaters in closed rooms can be dangerous as it can create carbon monoxide poisoning which can cause headache, dizziness, nausea and weakness.
The duration for which you can leave a space heater running depends on the time of day and your specific needs. During the Day: It's safe to leave your heater on for 6-8 hours if you're in the room. If you're busy or moving between rooms, consider using a timer to automatically shut it off after a few hours.
No, electric room heaters do not produce carbon monoxide, making them a safer option for indoor heating. How can I ensure my heater is safe to use? Regular maintenance, checking for gas leaks, and installing carbon monoxide detectors will help ensure your heater's safety.
Oil filled radiator space heaters are some of the safest on the market. 1500W is all the juice an outlet will provide (Roughly 5,000 btus).