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flue

 
(flū) pronunciation
n.
  1. A pipe, tube, or channel for conveying hot air, gas, steam, or smoke, as from a furnace or fireplace to a chimney.
  2. Music.
    1. An organ pipe sounded by means of a current of air striking a lip in the side of the pipe and causing the air within to vibrate. Also called labial.
    2. The lipped opening in such a pipe.

[Origin unknown.]


flue2 (flū) pronunciation
n.
A fishing net.

[Middle English, from Middle Dutch vlūwe.]


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Chamber in a fireplace that helps direct smoke and airborne soot through the chimney to outside air.


Example: Figure 74.
 FIG. 74. FLUE
FIG. 74. FLUE

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An incombustible, heat-resistant enclosed passage in a chimney to control and carry away products of combustion from a fireplace to the outside air. Often, several fireplaces within a home are connected to a single large flue, but it is also common to carry up one flue for each fireplace.


Word Tutor:

flue

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pronunciation

IN BRIEF: A tube, pipe, or shaft through which smoke, steam, or hot air can escape.

pronunciation They cleaned the flue regularly to make sure that all of the smoke could escape from the woodstove.

Tutor's tip: Sick with the "flu," (short for the infection influenza), she closed the "flue" (a shaft that removes smoke from a fireplace) to shut out the cold air. At that moment a flock of geese "flew" (past tense of fly) by..

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Random House Word Menu:

categories related to 'flue'

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Random House Word Menu by Stephen Glazier
For a list of words related to flue, see:

  See crossword solutions for the clue Flue.
A seven-flue chimney in a four storey Georgian house in London, showing alternative methods of sweeping

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 the United States, they are also known as vents and for boilers 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.

Contents

Heat retention

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 outside 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.

Other uses

Organs

The term flue is also used to define certain pipe organ pipes, or rather, their construction or style. Roman Thermaes constructed centuries ago had flues.

Boilers

Another use of the term is for the internal flues of a flued boiler.

Flue-types

Flue-types include

  • Balanced flue
  • Power flue
  • Die flue

See also


Translations:

Flue

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Dansk (Danish)
n. - træk-kanal, dun, kernespalte, harpunspids

Nederlands (Dutch)
rookkanaal, kanaal voor lucht, vuur etc., soort visnet, dons, een opening groter maken, uitspreiden

Français (French)
n. - (Constr) tuyau de cheminée, conduit de fumée

Deutsch (German)
n. - Abzugskanal, Flammrohr

Ελληνική (Greek)
n. - καπνοσωλήνας, καπναγωγός (κν. μπουρί)

Italiano (Italian)
canna fumaria

Português (Portuguese)
n. - tubo (m) ou cano (m) para expelir fumaça

Русский (Russian)
дымоход, воздухопровод, простые или лабиальные органные трубы

Español (Spanish)
n. - conducto de humo, humero, chimenea, ducto, red barredera

Svenska (Swedish)
n. - rökfång, varmluftsrör i vägg, fint fjun som flyger

中文(简体)(Chinese (Simplified))
烟洞, 暖气管, 烟道

中文(繁體)(Chinese (Traditional))
n. - 煙洞, 暖氣管, 煙道

한국어 (Korean)
n. - 굴뚝, 송기관

日本語 (Japanese)
n. - 煙管, 煙道, 熱気送管

العربيه (Arabic)
‏(الاسم) مدخنه , شبكه صيد‏

עברית (Hebrew)
n. - ‮ארובה, מעבר לאוויר חם או למים חמים‬


 
 
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parging (architecture)

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