01 n. An inclosed passage way for establishing and directing a current of air, gases, etc.; an air passage
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1.
An inclosed passage way for establishing and directing a current of air, gases, etc.; an air passage(Steam Boiler)
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2.
In an organ flue pipe, the opening between the lower lip and the languet.
Phrases & compounds
Flue boiler —
See under Boiler.
Flue bridge —
the separating low wall between the flues and the laboratory of a reverberatory furnace.
Flue plate —
a plate to which the ends of the flues are fastened; -- called also flue sheet, tube sheet, and tube plate.
Flue surface —
the aggregate surface of flues exposed to flame or the hot gases.