What is the Stack Effect?

Any air at or below ground level is drawn upwards through the house. The stack effect is the motion of air being pulled into or pushed and out of your home. This is the result of the difference in temperature between the inside of your home and the outdoor climate. During the summertime, we crank up the air conditioning or fans to beat the heat, and we fire up the furnace in the winter to stay warm and cozy. This difference in air temperature between our homes and the conditions outside produces the stack effect, which pulls and pushes air through the home’s attic and crawl space. (Source: Clean Crawls)

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