How does draft (wind thingy inside the house) happen ? Why does it usually work when you open two windows/doors ?
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If you open a door, air can flow in *or* it can flow in. If it did both, you’d just have a little bit of a breeze *just* inside of the door and nothing elsewhere in the house.
If you open *two* doors, it can flow in through one and out through the other, and has to travel the full distance between them through the inside.
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