Everything about Flue totally explained
A
flue is a
duct,
pipe, or
chimney for conveying
exhaust gases from a
fireplace,
furnace,
water heater,
boiler, or
generator to the outdoors. In
U.S.A. and for water heaters and modern furnaces, they're also called 'vents'; for boilers they're 'breeching'. 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.
Flues are designed to release noxious gases to the atmosphere, but they often have the disadvantage of releasing useful heat to the atmosphere. In some countries, wood fire flues are often built into a heat preserving construction within which the flue gases circulate over heat retaining bricks before release to the atmosphere. The heat retaining bricks are covered in a decorative material such as brick, tiles or stone. This flue gas circulation avoids the considerable heat loss to the chimney and ouside air in conventional systems. The heat from the flue gases is absorbed quickly by the bricks and then released slowly to the house rather than the chimney. In a well insulated home, a single load fire burning for one and a half hours twice a day is enough to keep an entire home warm for a 24 hour period. In this way, less fuel is used, and noxious emissions are reduced. Sometimes, the flue incorporates a second combustion chamber where combustibles in the flue gas are burnt a second time, reducing soot, noxious emissions and increasing overall efficiency.
The term flue is also used to define certain
pipe organ pipes, or rather, their construction or style.
Flue-types
Flue-types include
Further Information
Get more info on 'Flue'.
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