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Do Kerosene Heaters Produce Carbon Monoxide? (Answered)

Since heaters have different fuel-consuming systems, you will find kerosene heaters the cheapest option. You don’t need to look for anything else if your budget is limited. But the cheap budget most times comes with cheap quality heaters.

So, you must know this fact and then decide whether you should go for the cheap-quality heaters, or change your budget and go for the best one. However, kerosene heaters have some benefits and drawbacks that we will explore today.

Do kerosene heaters produce carbon monoxide?

The kerosene heaters produce carbon monoxide if it consumes the fuel slowly or gives you the slowest heating. When it starts to produce a high amount of heat, you must be careful to ensure the optimum use of the kerosene. There is a chance that your heater produces carbon monoxide. 

Since carbon monoxide poisoning is a great concern for the air, you should never put off the kerosene heaters.

If you set the heater at a very slow speed or slow heat-producing system, you will get carbon monoxide. If you give off the kerosene heater, it will produce the monoxide once you start it again.

Therefore, putting out the kerosene heater is not an ideal practice. Every time you turn off, and on the heater, it will produce a large amount of carbon monoxide, damaging the entire air system and directly affecting your health.

That’s why carbon monoxide must be removed from your house.

The best way to reduce or remove the carbon monoxide is to replace your paraffin heaters and install the electric heaters.

They will become the best substitute that won’t produce a single carbon monoxide since they are not based on the fuel. You can also save your fuel cost if you have an electric heater.

You should also look for other ways and check if you have any other fuel-based home appliances that are not compatible with the electricity and are giving off the fuel use. You must be careful about using them and reduce the carbon monoxide.

You can follow some tips to get the safety tips if you have a paraffin heater and you cannot replace it with an electric heater.

You should never buy fuel-based heaters since the electric heater will produce the best quality heat and won’t give you any carbon monoxide. Having budget-constraint is a typical incident, but you should try to get something better in your limited budget.

How does kerosene heater work?

The kerosene heater works by consuming and using kerosene as the primary fuel. When you put the kerosene in the tank, the wick of the heater will draw the kerosene.

Then, it will supply the kerosene to the machine, and the wick will use the kerosene to produce the heat.

The wick will burn the kerosene and produce the heat until the fuel turns into gas. In the meantime, the fumes of the kerosene or wick will go through the ventilation system. Eventually, the fume will go from the house and exit with the exhausting pipe.

Mainly the entire process is done on the burner. Here, the burner will distribute the flame evenly by oxygenation.

This process entirely happens on the burner of the heater. If you have any concerns or issues with the burner, you should take it seriously and repair it quickly.

It is the working process of the entire kerosene heater. If you have any concerns regarding the burners, wick, and any part of the heater, you should replace or repair it soon. Otherwise, it might cause significant damage to your heater.

How much carbon monoxide does a kerosene heater produce?

The kerosene heater produces more than 5 PPM carbon monoxide. The amount of carbon monoxide will depend on various factors, including fuel-consuming amount, the amount of heat, and the ventilation system.

You cannot use a kerosene heater with a poor ventilation system.

The poorer the ventilation system is, the more the amount of carbon monoxide will be. Also another factor is there that will also affect the amount of carbon monoxide.

If your kerosene heater is slow and doesn’t work efficiently, the carbon monoxide will be increased dramatically. 

Are kerosene heaters safe to use indoors?

The kerosene heaters are not safe to use indoors. You should be careful in using them in your bedroom or inside the house.

Anytime, anything could happen within a second. Therefore, a fire alarming engine would be your safest option if you have a kerosene heater.

Moreover, the kerosene heater should never be left burning if you’re not at home. You cannot control or turn it off remotely. So, the kerosene heaters must be kept off when you’re not at home, and there is none to take care of the heaters.

Kerosene heater in the garage:

If you have the option to replace or buy a new electric heater, you should never use the Kerosene heater in your garage.

Because of the fumes and the controlling system, the kerosene heater in the garage is not safe anymore. Anything could happen dramatically, and you will have nothing to do.

Therefore, you should be careful in using a kerosene heater in your garage. You must try to avoid using them. If you have any budget issues, you may go for the kerosene heater; otherwise, avoid purchasing the kerosene heater.

How much ventilation do you need for a kerosene heater?

One inch opening door is needed for a kerosene heater as the minimum ventilation system. Remember, you cannot use the kerosene heater in a tiny compartment where the ventilation system is inferior.

There must be sufficient ventilation systems, and fresh air should enter the room.

You should avoid using the heater by having a kerosene heater with a poor ventilation system. You should make a system or ventilation system for fresh air inside the room. When you turn on the kerosene heater, you will get fumes that might be dangerous.

Can fumes from a kerosene heater be harmful?

Fumes from a kerosene heater can be harmful. The Kerosene heaters pose several dangers to the user. They may produce gasses that are particularly harmful to the elderly, pregnant women and children under five.

If the gasses are not properly vented, they can lower the amount of oxygen in the air, resulting in headaches and respiratory difficulties and an increased risk of carbon monoxide poisoning, which can be fatal.

Because of how lethal this type of poisoning is, it is sometimes referred to as the “silent harmer” because it presents few visible symptoms.

Can I leave kerosene heater on all night?

You cannot leave the kerosene heater on all night. You should never leave heaters powered by kerosene unattended, especially when sleeping.

Gas poisoning could occur if you do not follow safety precautions. Apart from carbon monoxide, there can also be some other gasses or fumes that might be more disastrous than this.

It is highly recommended that you not leave the kerosene heater burning all night; you must turn it off before retiring to bed. Additionally, you should be ready to go outside to refill your heater’s tank, which preserves fuel with gasoline.

Safety tips for using a kerosene heater

Here are some safety tips to help you protect your house from the kerosene heater damage. Try to follow them all and ensure the best safety in your house.


Kerosene heaters can make dangerous amounts of toxic fumes, so make sure the area is well ventilated when you use one.

If there is a window open to the outside, you should leave it open for some time to avoid the possibility of asphyxiation, which is especially dangerous in strongly weatherized dwellings.

A warning is also given that they should never use gasoline in the devices since a blow off could happen.

Enough Space:

It is also recommended that you keep the heater at least three feet away from any furniture, drapes, decorations, or walls in the room. Removing all flammable elements, documents, and clothing from the area is also necessary.

Avoid Overfilling:

You should only replenish heaters when they are completely cool to the touch and only when they are empty. Fire experts warn that the fuel fumes emitted by the hot surfaces are potentially harmful.

When replenishing the tank, you need to avoid filling it to the brim or overfilling it. Always try to allow for the expansion of the liquid.


If possible, you can try to strain the kerosene through a filter after each transfer to ensure that no dirt or other particles end up in the heater unit or other components.

Final thoughts

Although the kerosene heater produces carbon monoxide, you must be careful about the slow-burning. The slow-burning in the put-off kerosene heater will produce more carbon monoxide than the efficient burners. If you want to avoid carbon monoxide, you must install an electric heater.