Ive been thinking of changing my intake and was wondering what ratio is the norm, I keep seeing a 2:1 and 4:1.
Im running a 6"exhaust with one 10" intake. I thought about adding another 10" but didnt know if that would be an overkill or not.
What is your guys thoughts on this?
I’ve always controlled input to output ratios with fan speed rather than fan size. Fan size has been dictated by tent size. A 4" for a 2x4, a 6" for anything under a 5x5, and an 8" for anything 5x5 and above. Input and output are the same size and the output is run at a slightly higher speed than the input (with the same size fan) to generate negative pressure in the tent when it is closed.
I RUN A 6 INCH Exhaust fan 4 x 4 space pulling out the top on Medium speed with 2 passive holes open at the bottom 24//7 . Plenty of air flow negative pressure never had a problem. Also two Small Circulating fans one on Each side of the tent. Just my thoughts good luck
Im asking about a passive not active✌🏻
Yes, @Dave That would be correct two passive 6 inch holes Opposite sides of the tent. Also install a piece of 6 inch flex with a snake bend so you have no light leakage.