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A smoke canopy is a device hung over a fire to gather the smoke [1] and vent it through a wall or roof. Fireplaces were not used during much of the Middle Ages, because there were no chimneys , which were not invented and popularized until the 12th century.
Fireplace and overmantel at Boston Manor House. Up to the twelfth century, fires were simply made in the middle of a home by a hypocaust, or with braziers, or by fires on the hearth with smoke vented out through the lantern in the roof. [1] As time went on, the placement of fireplaces moved to the wall, incorporating chimneys to vent the smoke ...
Canopy fume hoods, also called exhaust canopies, are similar to the range hoods found over stoves in commercial and some residential kitchens. They have only a canopy, no enclosure, and no sash, and are designed for venting non-toxic materials such as smoke, steam, heat, and odors that are naturally carried upward through convection .
Early ones were more fire pits than modern fireplaces. They were used for warmth on cold days and nights, as well as for cooking. They also served as a gathering place within the home. These fire pits were usually centered within a room, allowing more people to gather around it. Many flaws were found in early fireplace designs.
A kitchen hood in a small apartment. A kitchen hood, exhaust hood, hood fan, extractor hood, or range hood is a device containing a mechanical fan that hangs above the stove or cooktop in the kitchen. It removes airborne grease, combustion products, fumes, smoke, heat, and steam from the air by evacuation of the air and filtration. [1]
The majority of guidance available for design of heat and smoke building vents installed in buildings is restricted to nonsprinklered, single-story buildings. [4] This is partly a historical consequence of the installation of heat and smoke vents following the August 1953 General Motors, Livonia, MI major fire in a nonsprinklered manufacturing facility which effectively stopped the production ...
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