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A seven-flue chimney in a four-storey Georgian house in London, showing alternative methods of sweeping. 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. [1]
A flue liner is a secondary barrier in a chimney that protects the masonry from the acidic products of combustion, helps prevent flue gas from entering the house, and reduces the size of an oversized flue. Since the 1950s, building codes in many locations require newly built chimneys to have a flue liner.
An H-style cap (cowl) is a chimney top constructed from chimney pipes shaped like the letter H. It is an age-old method to regulate draft in situations where prevailing winds or turbulence cause downdraft and back-puffing. Although the H-cap has a distinctive advantage over most other downdraft caps, it fell out of favor because of its bulky looks.
A chimney sweep in Wexford, Ireland in 1850. A chimney sweep is a person who inspects then clears soot and creosote from chimneys. The chimney uses the pressure difference caused by a hot column of gas to create a draught and draw air over the hot coals or wood enabling continued combustion. Chimneys may be straight or contain many changes of ...
A flexible flue liner prevents a carbon monoxide leak, chimney fire, or creosote buildup. The creosote build-up is the fuel inside the flue that causes the chimney fire. Most countries have regulations relating to carbon monoxide in the home. Flue liners need to be installed where: The chimney leaks smoke and fumes
Chimney breast—The part of the chimney which projects into a room to accommodate a fireplace. [22] Crane—Metal arms mounted on pintles, which swing and hold pots above a fire. Damper—A metal door to close a flue when a fireplace is not in use. Flue—The passageway in the chimney. [22] Hearth—The floor of a fireplace.
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