Backdrafting | Article about Backdrafting by The Free Dictionary
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Potentially hazardous condition in which the exhaust from combustion appliances does not properly exit the building. This can be due to a number of factors including a blocked flue or a pressure difference within the building.
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exists when a house is air tight and there is no air exchange.
Inadequate air supply in a room where two or more combustion- driven appliances share the same air source, such as a water heater and furnace in a utility closet, can create a more complicated form of backdrafting
called reverse stacking.