Creosote Removal

Creosote is an oily liquid, which is emitted as volatiles, when wood or fossil fuels like coal, is burnt at low temperatures. In case of chimneys, these volatiles are released with the smoke, as the wood or fuel burns. The smoke rises through the chimney and gets cool, thereby causing condensation of the volatiles on the inner walls of the chimney. This black and oily residue on the chimney walls is termed as creosote. With time, the creosote buildup on the inner walls of the chimney thickens, affecting the airflow that is necessary for burning wood at high temperatures. Such accumulation can also cause chimney fire and so, is always risky. So, for the proper functioning of the chimneys and to avoid chimney fires, creosote removal should be done at regular intervals.

How to Remove Creosote

Now you know that creosote is a byproduct of burning wood or other fossil fuels at low temperature. Wood creosote is a yellowish greasy liquid with a smoky odor and burned taste. This is also used to protect wood from mold during the rains and from shrinkage and losing sheen, when exposed to sun. Another type of creosote is distilled from crude coke oven tar. This thick, black, oily liquid is commercially used as wood preservative, as animal and bird repellents and insecticides. However, the carcinogenic nature of this substance has led to discontinue its use in some countries. It is most commonly found in the chimneys and has to be removed at regular intervals for fireplace safety. Even though, there are professionals, who can be hired for the task, you can do it for yourself with the following tips.

From Chimneys
As creosote exposure can cause skin rash and burning sensation in the eyes, you have to take sufficient precautionary measures, before venturing on this task. Wear some old clothes and use safety glasses, respirator and gloves. Get a chimney sweeping brush of the right size and cover the face of the fireplace, so as to avoid any dirt from chimney entering the house. Start with cleaning the lower part of the chimney, by rotating the brush. Once, the lower part is done, go to the top and start cleaning from top to bottom. You can use a flashlight to check whether any residue is left. Once you are done with the chimney cleaning and the dust has settled, remove the covering of the fireplace. Use a wet dry vacuum (not the household one) for removing the debris and dust. If the buildup is stubborn and cannot be removed by the brush, you can call professionals. Another method for creosote removal is to use chemical products, that are added to the wood, before burning them. The ingredients in such products attach to the creosote, that is formed, and transforms it to burnt ash, which is harmless. However, you have to follow the instructions of the manufacturers, while using such products.

From Glass and Clothing
Creosote buildup can be found on glass fireplace doors too. In such cases, it can be removed with a razor blade. After that, spray some window cleaner on the glass surfaces and dry it with a towel or clean rag. If your cloth is stained with creosote, never wash it in a washing machine. Apply some oil or butter over the stained area and wipe the stain with lifting motions. After that, use some warm water and detergent to wash the spot. The next step is to launder the cloth in a small load, before drying. However, make sure that almost 90% of the stain is removed before drying.

You may try the above said methods, in order to get rid of creosote.