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Cowls often also act as a rain guard to keep rain from going down the chimney. A metal wire mesh is sometimes added as a spark arrestor. Wooden cowls were used on oasts to prevent the ingress of rain into kilns, and create a flow of air through the kiln. An H-style cap (cowl) is a chimney top constructed from chimney pipes shaped like the letter H.
A chimney cowl or wind directional cap is a helmet-shaped chimney cap that rotates to align with the wind and prevent a downdraft of smoke and wind down the chimney. An H-style cap is a chimney top constructed from chimney pipes shaped like the letter H. It is an age-old method of regulating draft in situations where prevailing winds or ...
Since the beginning of the Industrial Revolution, tall chimneys were built, at the beginning with bricks, and later also of concrete or steel.Although chimneys never held the absolute height record, they are among the tallest free-standing architectural structures and often hold national records (as tallest free-standing or as overall tallest structures of a country).
House's Chimney, named after American climber Bill House, is a 30-metre (100 ft) tall crack in a rock wall, located on the Abruzzi Spur of K2, a mountain on the China–Pakistan border. The 'chimney' was first climbed, and named, when House free climbed it on the 1938 American K2 expedition .
Several of these terms may be compounded with chimney or fireplace such as chimney-back. Andiron—Either one of two horizontal metal bars resting on short legs intended to support firewood in a hearth. [20] Arch—An arched top of the fireplace opening. [21] Ash dump—An opening in a hearth to sweep ashes for later removal from the ash pit. [21]
A flue gas stack at GRES-2 Power Station in Ekibastuz, Kazakhstan, the tallest of its kind in the world (420 meters or 1,380 feet) [1]. A flue-gas stack, also known as a smoke stack, chimney stack or simply as a stack, is a type of chimney, a vertical pipe, channel or similar structure through which flue gases are exhausted to the outside air.
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A brick chimney breast. A chimney breast is a portion of a chimney which projects forward from a wall to accommodate a fireplace. [1] Typically on the ground floor of a structure, the masonry extends upwards, containing a flue which carries smoke out of the building through a chimney stack. [2]