Flue & Chimney Cleaning Chemicals

Wood-burning fireplaces are warm, cozy and attractive, but they require proper maintenance, or the consequences could be quite severe. One of the major hazards of a wood-burning stove or fireplace is the development of creosote, a chemical that can build up on the inside of chimneys and flues. Regular cleaning and inspection, preferably by a professional, will prevent buildup, but you can prevent buildup yourself, as well, using chemicals that protect your fireplace from hazardous buildup and help you keep your home safe and clean.


Creosote is a tarry substance that forms when wood burns and is carried up the inside of a chimney as part of the smoke. The creosote collects on the inside of the chimney and traps carbon, usually soot, which is also part of the smoke from burning wood. The mixture dries and bakes against the inside of the chimney. Not only does this cause ventilation problems, but the mixture is quite flammable, and a chimney fire is dangerous and can lead to the destruction of your chimney or even your home.

Sodium Chloride

Sodium chloride, also known as table salt, is a simple chemical that is easy to find. Put a little salt in the fire while it is burning. The salt combines with the water in the burning wood to create a weak acid that travels up the chimney and dissolves small amounts of creosote. This method should be used with care, however. It should not be overdone and should not be used in a metal chimney, as the acid can interact with the metal and cause corrosion.

Copper Sulfate

When choosing a commercially made chimney cleaner, one of the most effective ingredients is copper sulfate. This material coats and interacts chemically with the soot embedded in the creosote inside of your chimney and helps it burn away at a lower temperature than is normally needed. However, like table salt, copper sulfate combines with water and creates sulfurous or sulfuric acid. This acid can damage the inside of your chimney, and so should be used with care.

Other Considerations

While chemical cleaners can prevent buildup of creosote, the only way to effectively remove creosote is to manually scrub the inside of the chimney with an appropriate brush. Chemical cleaners should never be your sole method of cleaning your chimney. In addition, overuse can damage chimneys, particularly metal-lined chimneys, and can reduce the life of your chimney or flue. Too much of a chimney cleaning chemical can even cause a fire itself. An ounce per week is typically sufficient. Read all instructions before using any chemical cleaner.

Source: https://homeguides.sfgate.com/flue-chimney-cleaning-chemicals-47263.html

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Logan Buchanan
Logan Buchanan
This company is super professional and their inspections and quotes are very thorough. Dan Kaufman was the technician that did my inspection and he gave me a very detailed presentation of all his findings and different avenues of attack all across the price range spectrum. He was open and honest about what needed to be done and what could be considered optional, which put me at ease. He's been spot on with follow ups and further questions as well. I haven't ordered a job yet, but when I do I'll be doing it with this company 👍
Melody Curella
Melody Curella
The technician came out with in days when other company's I called said they were 6 weeks out. He was professional and knowledgeable. The estimate was very reasonable. He was through in checking the inside and outside. I had alot of questions and he was able to answer my questions. I will be having them do the work when I'm ready. Thank you
chris friday
chris friday
Matt was very nice and helped me change my tire on his breakfast time thank you so much❤️
Andrew Bellew
Andrew Bellew
Matt was professional and knowledgeable.


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