Can I leave my Lasko heater on overnight?

Author: Ewell Wolf  |  Last update: Friday, July 25, 2025

Often time you may feel the need to use your Lasko space heater overnight to keep the chill away. We do not recommend, under any circumstances to run a heater unattended.

Can I leave my Lasko heater on all night?

Is it safe to leave a space heater on overnight? While there is much debate about this topic, the general, expert consensus is a resounding “no” — and you should never leave it running overnight. “No, it's absolutely not safe to use a space heater at night,” states Glenn Gault, CEO at Gault Heating & Cooling.

How long can you run a Lasko heater?

A Lasko heater can be ran for any amount of time that you need it to. Keep in mind that a space heater should only be used as a supplemental heating source and should not be used as a primary heating source.

Can a Lasko heater overheat?

If an overheat temperature is reached, the heater will automatically shut off. It can only be resume operation when the user resets the unit.

Is it bad to leave a space heater on 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.

Can I Run A Space Heater All Night? Space Heater Safety Tips

Is a Lasko ceramic heater safe?

Hazard: The heater's cord can overheat where it enters the base of the unit, which could pose a fire hazard to consumers.

What type of heater can be left on all night?

What is the safest heater to leave on overnight? While it's not recommended to leave any space heater on if you're not monitoring it, oil-filled, radiant space heaters are considered safer than ceramic convection (hot air) types, according to Roberson. Both of these options are safer than open-coil heaters.

Do Lasko heaters produce carbon monoxide?

Space heaters that are electric do not create carbon monoxide, as there is no combustion or burning. Heaters that burn something can create carbon monoxide if there is not enough oxygen to support complete combustion.

Do Lasko heaters use a lot of electricity?

Most space heaters, including this Lasko model, are 1,500 watts. If you run a space heater for eight hours a day, it may cost you about $2 per day, depending on your local rates. We've broken it down even further in our guide on how much electricity a space heater uses.

Does the Lasko heater turn off automatically?

Once the room temperature reaches 2 degrees above the set temperature, the Heater will shut off. Once the room temperature reaches 1 degree below the set temperature, the Heater will turn back on and continue to cycle off and on to maintain the set temperature.

What is the safest space heater to leave unattended?

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).

Can you leave the fan heater on overnight?

Running heaters overnight or unattended.

Our advice to not run heaters overnight or unattended is the safest policy to adopt.

Is it OK to turn on heater overnight?

Electric heaters of any type are unsafe to leave running overnight because they carry a significant amount of risk. If a space heater falls over or becomes too hot from running for too long of a period of time, that can lead to a fast-moving fire that occurs while you are asleep and cannot act fast enough.

What is the safest heater for a child?

Best heater for a baby room or child's bedroom

If you want a heater that you can leave on all night in a bedroom, or to gently heat a child's bedroom while they nap, a convection heater such as an oil column heater or panel heater is likely to be the best option as they can emanate a gentle heat without a noisy fan.

Is it normal for heater to run all night?

It isn't bad to run your heating system on a 24/7 basis if outdoor weather conditions demand indoor warmth. For many households, maintaining a constant indoor temperature is the only way to survive the winter. Just be aware that this is likely to cause additional wear and tear on your heating system.

Can you sleep with a Lasko heater on?

Many space heaters also come with instructions that warn not to leave them on while you sleep. Several of our picks, such as the De'Longhi TRD40615T, and the Lasko FH500 All Season Comfort Control Tower Fan & Heater in One, come with built-in timers to help you minimize the chance of their running unattended.

How long can you leave a Lasko heater on?

Often time you may feel the need to use your Lasko space heater overnight to keep the chill away. We do not recommend, under any circumstances to run a heater unattended.

How safe are Lasko heaters?

Hazard: An electrical connection in the base of the unit can overheat, causing it to melt and expose the electrical connection, posing a fire hazard to consumers. Incidents/Injuries: Lasko received a total of 36 reports of the electrical connection overheating with no reports of injury.

What is the safest heater for your health?

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.

How do I know if my heater is releasing carbon monoxide?

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.

Do Lasko heaters smell?

Similar to when purchasing a new car, there is a non-toxic odor that may accompany the heater. As the heater runs, the smell should dissipate. It is important to mention that Lasko complies with all required safety testing to ensure our products meet or exceed these expectations.

What happens if a heater is left on overnight?

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.

Can you run a small heater all night?

When heating your bedroom overnight, using a space heater is not a safe option. Fire risk and overheating are common reasons to avoid using a space heater overnight. Homes also need heating during the day, so using a central heating system like a furnace, boiler, or heat pump is always a better option.

Is it OK to leave heater on all day?

If you have an electric heater or an old, non-condensing boiler, we recommend not leaving them on forever. That's because electricity heaters can be expensive to run, so turning them on and off will help.

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