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Smoke flap ventilation is used on tipi (teepee') housing of the Native America Plains Indians by tradition, both historically and on modern ceremonial tipis. The tipi smoke flap vent is attached in a continuous piece to the cured hides that cover the exterior of the large teepee housing structure.
A smoke hole (smokehole, smoke-hole) is a hole in a roof for the smoke from a fire to vent. [1] Before the invention of the smoke hood or chimney, many dwellings had smoke holes to allow the smoke from the hearth to escape. Pre-modern English homes with unglazed windows or thatch roofs required no special vent for smoke. These structures ...
This is because most of the hot air generated by the fire travels up the chimney due to convection. A traditional fireplace can also draw hot air in from the room and expel it through the chimney, further lowering the efficiency. The design of the direct vent fireplace allows for such a high level of efficiency because of the sealed firebox.
Some fireplace units incorporate a blower, which transfers more of the fireplace's heat to the air via convection, resulting in a more evenly heated space and a lower heating load. Fireplace efficiency can also be increased with the use of a fireback, a piece of metal that sits behind the fire and reflects heat back into the room.
That causes the bottom of the vertical column of hot flue gas to have a lower pressure than the pressure at the bottom of a corresponding column of outside air. That higher pressure outside the chimney is the driving force that moves the required combustion air into the combustion zone and also moves the flue gas up and out of the chimney.
An outdoor fireplace is a place for building fires outside of the home. Similar in construction to an indoor fireplace , an outdoor fireplace is usually added to a stone, brick, or concrete patio. It often consists of a firebox and a chimney .
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