
It is possible to use diesel fuel in a kerosene wick heater, but it is not recommended. While some people have reported success in using diesel fuel in their kerosene wick heaters, particularly in a pinch when kerosene is unavailable, others have experienced issues with smoke, soot, and strong smells. Kerosene heaters are designed for use with kerosene, and using diesel fuel may result in increased maintenance and cleaning due to the buildup of soot and crust on the wick and inside the heater. Additionally, diesel fuel may not burn as cleanly as kerosene, potentially leading to increased carbon monoxide (CO) emissions. While diesel fuel is often cheaper and more readily available than kerosene, it is important to prioritize the safety and proper functioning of the heater.
| Characteristics | Values |
|---|---|
| Is it possible to use diesel fuel in a kerosene wick heater? | Yes, it is possible to use diesel fuel in a kerosene wick heater, but it is not recommended. |
| Why use diesel fuel in a kerosene wick heater? | Diesel fuel is often used as an alternative to kerosene due to its lower cost and wider availability. |
| Pros of using diesel fuel in a kerosene wick heater | It is cheaper than kerosene and can be easily found at diesel pumps. |
| Cons of using diesel fuel in a kerosene wick heater | It can produce more smoke, soot, and fumes than kerosene, leading to increased maintenance and cleaning costs. It may not burn as cleanly as kerosene, especially if it is #2 diesel, and can cause a strong smell. It can also increase wear and tear on the wick, reducing its lifespan. |
| Tips for using diesel fuel in a kerosene wick heater | Use ultra-low sulfur diesel to reduce the smell and smoke. Add 3 ounces of isopropyl alcohol to each gallon of diesel to reduce wick degradation. Ensure proper ventilation when using diesel fuel. |
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What You'll Learn

Using diesel in a kerosene wick heater may cause smoke and soot
While it is technically possible to use diesel fuel in a kerosene wick heater, it is not recommended due to the potential for increased smoke and soot production, which can cause a mess and require additional maintenance.
Some people have reported using diesel fuel in their kerosene wick heaters without any issues, noting that it is a similar fuel to kerosene and can be a cheaper alternative. However, others have experienced significant problems, including an increase in smoke and soot. This is because diesel fuel is less refined than kerosene and produces more carbon buildup, which can lead to a harder black soot that is difficult and costly to clean.
The use of diesel fuel in a kerosene wick heater can also result in increased fumes and a strong smell, which can be unpleasant and require proper ventilation. Additionally, the diesel fuel may not burn as cleanly as kerosene, leading to a higher level of maintenance for the heater. The wick of the heater may also be affected, with some users reporting that the diesel fuel destroyed their wick after a short period of use.
To minimize the potential for smoke and soot when using diesel fuel in a kerosene wick heater, it is recommended to ensure that the diesel burns hot and that the wick height is adjusted correctly. Adding isopropyl alcohol to the diesel fuel can also help reduce wear on the wick. However, even with these precautions, there is still a risk of increased smoke and soot production, as well as other potential issues.
Overall, while it may be tempting to use diesel fuel in a kerosene wick heater, particularly due to its lower cost, it is important to be aware of the potential drawbacks and risks associated with its use. The increased maintenance, mess, and potential for strong smells and smoke make it a less ideal option compared to kerosene. Therefore, it is recommended to use kerosene fuel in a kerosene wick heater whenever possible to ensure optimal performance and minimize the risk of issues.
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Diesel may damage the wick and heater
While some sources suggest that it is possible to burn diesel in a kerosene wick heater, others advise against it. One of the primary concerns is the damage that diesel fuel can cause to the wick and the heater itself.
Burning diesel in a kerosene wick heater can lead to increased wear and tear on the wick. The diesel fuel can cause the wick to become heavily sooted or crusted, which may result in a decreased lifespan and suboptimal performance. In some cases, the wick may need to be replaced more frequently, incurring additional costs.
Additionally, diesel fuel has the potential to cause damage to the heater itself. The soot and smoke produced by burning diesel can coat the interior of the heater, leading to a build-up of hard black soot and crust. This accumulation of residue will require thorough cleaning, which can be time-consuming and challenging, as shared by some users.
The type of diesel fuel used can also impact the performance and maintenance of the wick and heater. For instance, #2 diesel is less refined and may not burn as cleanly as kerosene, leading to increased maintenance requirements. On the other hand, ultra-low sulfur diesel may reduce the amount of soot and smoke produced, but it is thinner and may not be suitable for all heater types.
Overall, while it may be tempting to use diesel fuel in a kerosene wick heater, especially due to its lower cost and availability, it is important to consider the potential drawbacks and risks associated with it. The increased maintenance, cleaning, and possible damage to the wick and heater may outweigh the initial cost savings. Therefore, it is essential to carefully weigh the advantages and disadvantages before making an informed decision.
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Kerosene is harder to find and more expensive
There are a few ways to find kerosene at a cheaper price. One option is to look for a bulk fuel distributor in your area, where you can fill a barrel with kerosene at a lower cost per gallon. Another option is to use city data to find local places that sell kerosene for less than the chain stores. For example, one person found kerosene at a Hess Station for less than half the price of Lowe's.
The difficulty in finding kerosene and the higher cost may be due to the fact that it is a highly versatile fuel with a wide range of applications. Kerosene is used for lighting, heating, cooking, and power generation. It is also known as paraffin or kero, and has been used as a lamp fuel since the 19th century. Today, it is widely used as jet fuel and is an important fuel for many industries.
Despite the higher cost and difficulty in finding kerosene, some people still prefer it over diesel for their wick heaters. This is because diesel can cause more maintenance issues and leave behind soot and smoke. While diesel may be a cheaper alternative, it is not as clean-burning as kerosene, and may not be suitable for long-term use.
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Diesel may be a cheaper alternative
Some people opt to use diesel in their kerosene heaters because it is more readily available and cheaper than kerosene. In some areas, kerosene may not be sold at fuel centers or gas stations, making it difficult to obtain. Diesel, on the other hand, is widely available at diesel pumps. The price difference between the two fuels can also be significant, with kerosene costing around $7 per gallon, while diesel is generally cheaper.
However, using diesel in a kerosene wick heater comes with several drawbacks. Firstly, diesel may not burn as cleanly as kerosene, resulting in increased soot and smoke buildup inside the heater. This can lead to more frequent cleaning and maintenance, offsetting some of the cost savings. Additionally, diesel may produce more carbon monoxide (CO) than kerosene, which can be hazardous if the area is not properly ventilated.
To minimize the negative effects of using diesel in a kerosene wick heater, it is recommended to ensure proper ventilation and maintain the correct wick height. Burning diesel at a high temperature can help reduce the production of soot and smoke, but it may not completely eliminate them. Adding isopropyl alcohol to the diesel can also reduce wick degradation, but it may not prevent all the potential issues.
Overall, while diesel may be a cheaper alternative to kerosene in wick heaters, it requires more maintenance and can produce undesirable byproducts. It is essential to weigh the cost savings against the potential for increased cleaning, maintenance, and the need for proper ventilation when considering using diesel in a kerosene wick heater.
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Kerosene heaters require regular maintenance
Kerosene heaters are efficient and economical, generating much larger amounts of heat at half the price of an electric heater. However, they require a high level of responsibility and vigilance as they can be dangerous if used improperly.
Before lighting a kerosene heater for the first time, ensure the heater is filled with quality 1-K kerosene and the wick has soaked in a full tank of fuel in the lowered position for 60 minutes. This ensures the wick is completely saturated with kerosene and lights properly. The wick and igniter must be positioned correctly. The igniter should be above the wick to light the kerosene vapours. If the igniter is not glowing bright orange, the batteries may need to be replaced with regular duty non-alkaline batteries.
During the heating season, the wick should be checked every week or two. If it's dirty, it should be cleaned according to the manufacturer's instructions. The ends of the wick may burn to a hard carbon and need to be trimmed outside the house. If the wick does not drop when you push the shut-off knob, this could be due to tar/carbon build-up from operating the heater at too low a temperature or using contaminated fuel. Water-contaminated fuel can cause the cotton fibres in the wick to swell, preventing free movement.
Kerosene heaters should be placed several feet away from all furniture, curtains, papers, clothes, bedding, and other combustible objects. They should never be left unattended or operated overnight, and children and pets should be kept at a safe distance. The room must be well-ventilated, with a window or door cracked open to prevent the risk of asphyxiation from carbon monoxide. Carbon monoxide and smoke detectors are recommended.
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Frequently asked questions
Yes, you can generally burn #1 diesel in most kerosene heaters. However, it is not recommended as it smokes more, doesn't burn as clean, and will destroy your wick.
Running diesel in a wick-type kerosene heater may generate more CO than you would like and will also produce a lot of soot. Your wick will crust up very quickly.
Diesel is less refined and thicker than kerosene, so it won't burn as clean.
You can add 3oz of isopropyl alcohol to each gallon of diesel to reduce the increased wear on your wick.








































