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60 sats \ 3 replies \ @itsrealfake 10 May \ parent \ on: What's something your significant other believes that you find ridiculous? AskSN
opening the 2nd floor windows allows cool air to settle in the bottom floors, displacing & pushing less dense air around in the process.
That's less blowing hot air entirely out of the house, than it is giving it somewhere else in the house to go.
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Do I understand correctly that you think the colder & lower pressure air will expand out of the house faster than the warmer & lower pressure air ?
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I'm saying the circulating colder air will push the warmer air out of the upstairs window, if the air outside that window is cooler than the air inside.
It's an efficiency improvement, because the AC system is basically inducing convection, which is a very efficient form of heat transfer.
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