EXAMPLES FROM THE WEB FOR FLUE
The chimney-pot to which he had to fix the flue was in the middle of the roof.
Dirty finger-prints were on the hall-windows, flue and rubbish on its unwashed boards.
Anyway I got doubled up somehow; and that's the reason I stuck in the flue.
In these days, how common is it to provide rooms with only a flue for a stove!
The cross-section area of the flue is likely to prove the most common difficulty.
He said he put it in the flue of the fireplace, because there was no closet in the room.
He put it in the flue of the fireplace, and it tumbled down.
Biddy had made up too large a fire in the stove and heated the flue.
He ceased to restrict the toe of the pipe and did all his regulation at the flue.
These brushes were passed up and down every flue in the house.
"smoke channel in a chimney," 1580s, perhaps related to 15c. word meaning "mouthpiece of a hunting horn," or perhaps from Old English flowan "to flow," and/or Old French fluie "stream."