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Thanks, yes, I suspected the exhaust needs to be stronger. The smell isn't the main concern, it's moving the hot air out that I want to concentrate on.
I learned during our rebuilding that there is a whole complicated architectural science behind it, so that would be great babystarbud, if you meet him

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faithless Reviewed by faithless on . Negative/Positive Air Vent Pressure??? . So when you build vents, whether it's for a grow room, or a whole building, theres a whole scientific theory behind whether the intake or the exhaust should be more powerful, vacuum and all that stuff. I seem to remember that the exhaust should be more powerful than the intake, can anyone confirm or refute please? I've googled like mad, but I just can't find any good answers and it's time to get building a proper space... I'd be really greateful for any help. Thanks! :pimp: . Rating: 5