Can You Leave a Space Heater On all Night?

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To bring warmth into your house, you will require a space heater. The preference for warmth during the winter will most like push you to leave it on at the night, or you might have the thoughts most likely. In as much as warmth is good, and will enhance your sleep, is it okay to do so? Can you leave a space heater on all night?

The simple answer is “No”. Portable heaters are possible safety threats and should be put off when you are going to sleep.

In this article, we will discuss why it’s never a good idea to leave a space heater on all night

Can You Leave a Space Heater on all Night?

Leaving your space heater operating all night long while you doze is a no-no. If the unit overheats, tilts over, or short-circuits overnight, a spark could trigger a fire while you’re fast asleep.

Utilize the heater to heat up your room before bed, and then turn it off when you want to retire between the sheets. Space heaters can be dangerous.

Space heaters operate a lot of heat and can render the air in the room really dry. This can heighten the possibilities of available items like paper, and getting torched. But then, you might be thinking. Space heaters turn off automatically, so why I will be bothered?

You might just be deceiving yourself! Space heaters getting turned off automatically differ from heater to heater. Most economical space heaters won’t shut off automatically. Yes, you might own a space heater with an automated shutoff setting, but you shouldn’t depend on that to maintain your safety.

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It’s safe, but not totally. I’ll talk more about that later. Recent improvements in space heater technology have made it practical to have your space heaters running for quite a lengthy time. If your heater is an upscale heater, you can leave it on for 10 hours and even more and you won’t have any problems.

Fire safety professionals recommend heating up a room for two to three hours before you retire to bed, then putting it off.

The heat also doesn’t just cause a fire, the chemicals emanating from the heater itself can make you ill. They are undetected but dangerous nonetheless, such chemicals can weaken your mind as well as the vigor of your body. Many people get skin issues due to heat and any mold in an area.

Moisture on the windows and in closed-off locations could bring about chest disorders and not just destruction to the house and home. Thermostat regulators could help curtail these issues and so can timer controls for such appliances, particularly electric and gas equipment.

Can You Leave A Space Heater Unattended If It Has An Automatic Shutoff Feature?

It is already established that space heaters are a major reason for house fires, so possessing an automatic shutoff component with your heater is of absolute importance.

Even though you shouldn’t be in the exact room as the space heater, it’s still adequate to at least remain in the house while the heater is functioning.

That way you will be available to handle it if a problem occurs.

Then again, don’t forget, that space heaters can utilize a ton of electricity. So, if you want to save your electric bill from soaring, you’ll need to turn it off when you’re not using it.

So, because of that, plugging your space heater into a timer will come in handy.

If you don’t want your space heater to be functional all the time, especially when you go to sleep, but don’t want to manually shut it off, connecting the power cord to a timer will be a clever idea.

Regardless, you have to ensure that the space heater doesn’t exceed the timer’s capacity margins.

To put it simply, most timers utilize around 1500 watts of power, so you must get a timer that is able to handle at least that much power, even more. A timer that can carry 1800w, for instance.

Don’t forget, utilizing a timer still doesn’t mean a space heater is good to use overnight.

Always apply caution.

What Space Heaters Should You Leave Overnight?

It is not an overstatement! So long as it concerns space heater security, it is principally advised not to leave them on for long intervals, particularly when not regulated.

But then, some of them such as oil-filled, electric ceramic, and infrared space heaters are the steadiest overnight heating and comfortability choices.

Some of the types are:

  1. De’Longhi Oil-Filled Radiator
  2. PELONIS Oil Filled Radiator
  3. PELONIS Space Heater
  4. Lasko 755320
  5. Honeywell Slim Ceramic Tower Heater

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Related Questions

Can You Set a Space Heater on Carpet?

No, you can not. You should not. Never position a space heater on the carpet, a rug, or any other fabric floor coating. Rather, put space heaters in rooms with wood, tile, vinyl, or synthesized flooring. If you must utilize a space heater in an area with carpet, lift the heater unto a non-fabric ground. You could use a desk, table, or chair.

What temperature should I leave my heater on at night?

Set the temperature of your home at eight degrees lower for the eight hours or so that you sleep.

Is it safe to run a space heater 24/7?

No, you shouldn’t. Only utilize your heater for small periods of time; it shouldn’t be left on 24/7. Turn it off.

Is the electric heater safe in closed rooms?

No, it isn’t. Excessive use of heaters in closed rooms can be dangerous as it can develop carbon monoxide poisoning which can lead to headache, dizziness, nausea, and weakness.

Can you get carbon monoxide poisoning from an electric space heater?

Yes, you can. Extended use of the heater can cause that.


Space heaters can be great for extremely cold weather, but don’t get too comfortable. its dangers are as profound as its benefits, if not even more. Always apply caution when you use it.