Flue, what is it?

Wood burning in fireplaces, though very comforting, have adverse effects on the environment. (Mathew Sumner/San Mateo County Times)FLUE:  Most people say to me, “Will you close the flue once you complete the cleaning process?”  What they are really asking me to do is to close the damper.

So what is the definition of the word flue?  The chimney Safety Institute of America defines this word as, “The passage in a chimney for conveying flue gases to the outside atmosphere.”

And Webster’s Dictionary defines this word as, “A channel or pipe in a chimney for carrying flame and smoke to the outer air.”

The inside of your chimney may contain one or more flues.  It depends upon the number of fireplaces or gas appliances are in the home.

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