Post #3555919
2026-07-03 12:17 UTC
Did you consider asking OP if moisture was accumulating before accusing them of negligence?
I am definitely a layman, but the pressure differential would likely be pushing out if air was blowing into the room. Exception would be in high wind.
If there is no obvious moisture buildup, or as I put it earlier, evidence of humidity damage, there is no problem.
If OP wants the window open and vents blocked, they can run a dehumidifier.
Take the feedback. You were not sensitive to somebody seeking support.
Replies (2)
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@holy_scroller@lemmy.zip 2026-07-03 14:22
What magic pressure differential are you referring to? A/C recirculates indoor air and has slightly positive rooms and slightly negative rooms, but will always be net ~1ATM of pressure. If his room has slightly positive pressure and he opens the window, then guess what, hot humid air is being pulling into the house in other people’s rooms, hallways, bathrooms. This would also explain why he doesn’t experience the issues it would cause.
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@klankin@piefed.ca 2026-07-03 14:34
Dehumidifier and AC is a massive waste of power and generally doesnt do anything, and the hot/cold difference creates a vortex pulling in hot and expelling cold.