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Flue
A flue is a duct, pipe, or opening in a chimney for conveying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors. Historically the term flue meant the chimney itself. In the United States, they are also known as vents for boilers and as breeching for water heaters and modern furnaces. They usually operate by buoyancy, also known as the stack effect, or the combustion products may be ‘induced’ via a blower. As combustion products contain carbon monoxide and other dangerous compounds, proper ‘draft’, and admission of replacement air is imperative. Building codes, and other standards, regulate their materials, design, and installation.
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Flu (noun)
Influenza.
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Flu (noun)
Stomach flu.
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Flue (noun)
A pipe or duct that carries gaseous combustion products away from the point of combustion (such as a furnace).
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Flue (noun)
An enclosed passageway in which to direct air or other gaseous current along.
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Flue (noun)
A woolly or downy substance; down, nap; a piece of this.
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Flue (noun)
In an organ flue pipe, the opening between the lower lip and the languet.
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Flu (noun)
influenza
“she was in bed with flu”
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Flue (noun)
a duct for smoke and waste gases produced by a fire, a gas heater, a power station, or other fuel-burning installation
“no air rises up the chimney, usually because the flue is blocked”
“flue gases”
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Flue (noun)
a channel for conveying heat.