Creosote and tar

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Creosote and tar build up

CREOSOTE AND TAR BUILD UP! Are you at risk of a chimney fire? Is your chimney safe? Chimney fires occur when there is fuel in your chimney to feed it.  By fuel, we mean creosote and tar which can accumulate in all types of chimneys – masonry, or metal, where wood burning appliances are vented. Creosote and tar are combustible and if it is set afire the resulting chimney fire is extremely hot, in some cases reaching over 1,000 degrees Celsius.  A chimney fire can melt through even a well-built safe chimney, setting the building on fire. What causes creosote and tar build up? -The temperatures in the chimney or flue -Level of usage -The wood-sap content of the wood being burned. -Moisture content of the wood being burned. -The wood species (or to a smaller degree the type of coal or peat) being burned. -The chimney size, height, location, and construction materials serving the heating appliance. -Adequacy of combustion air supply -Anything else that affects chimney draft. -The frequency of chimney cleaning and the thickness of existing creosote and tar deposits.   What are the dangers of a chimney fire? A chimney fire could quickly spread and destroy your … Continue reading

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