this post was submitted on 07 Jul 2026
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hmmm
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For things that are "hmmm".
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The ac isn't taking air in from outside, it's two different (and isolated) air routes. It takes in air from inside the house, cools it, and puts it back into the house. The outside air loop takes in outside air, heats it, and dumps it back outside.
These two loops never mix, at least on a residential system. Commercial is a different beast that does use external intakes.
Right. I confused evaporative coolers and AC for a moment. Thanks.