Answer: FLUE

AnswerCrossword Clue
FLUESomething a chimney sweep sweeps
FLUEWhere there's smoke
FLUEIt may be full of hot air
fluea smoke-duct in a chimney
fluechannel in a chimney for conveying flame and smoke to the outer air
fluepassage for smoke, air, or gas
fluepipe for conveying flame and hot gases around or through water in a steam boiler
flueair channel leading to the lip of a wind instrument
fluean enclosed passageway for directing a current as
FLUEChimney vent
FLUESooty shaft
FLUESmoky shaft
FLUESmokestack
FLUEOboe's air channel
FLUEChimney conduit
FLUEChimney segment
FLUESmoky passageway
FLUESmoke passage
FLUESoot collector
FLUEChimney pipe
FLUEDrafty spot
FLUEAir passage.
FLUEKind of shaft.
FLUEDuct
FLUEFireplace feature
FLUEPassage
FLUEChimney piece
FLUESoft, fluffy lint
FLUEPassageway for smoke
FLUEChimney shaft
FLUESmoke conveyor
FLUEPlace to see Santa?
FLUEAir shaft
FLUEAir channel
FLUEVent
FLUEFishing net
FLUEAir duct
FLUEFire exit?
FLUEIt's full of hot air
FLUEKind of pipe