If cold air sinks, is a home with no basement cooler in the summer than a home with a basement?
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Answers:
I assume you are talking about a below ground basement. The fact that cold air sinks would tend to make a house with a basement cooler in the basement and warmer in upper levels if the air were not circulated by a central AC system. This is however far over ridden by the fact that the dirt against the basement wall is a constant 54 to 58 degrees F vs the 90 to 100 degree F (depending on area) the outside upper walls see. The basement walls actually add cooling to the house because of this fact. It is the same reason wineries build caves to store wine.
So to answer your question the house with a below ground basement will be cooler in the summer.
no---its not because the cold air sinks its because the basement is insulated from the heat
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