Backdrafting

  The flow of air down a flue/chimney and into a house caused by low indoor air pressure that can occur when using several fans or fireplaces and/or if the house is very tight.

Energy terms . 2014.

Look at other dictionaries:

  • Direct Vent Heater —   A type of combustion heating system in which combustion air is drawn directly from outside and the products of combustion are vented directly outside. These features are beneficial in tight, energy efficient homes because they will not… …   Energy terms

  • Draft Hood —   A device built into or installed above a combustion appliance to assure the escape of combustion byproducts, to prevent backdrafting of the appliance, or to neutralize the effects of the stack action of the chimney or vent on the operation of… …   Energy terms

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