Cold$moke
Well-Known Member
This... my door is almost too hard to open which i may make my passive intake bigger to compensateWhy cover the intake hole? You can achieve negative pressure with a passive intake.my fans can pull the doors shut there’s so much negative pressure in the rooms. Passively taking in air and I have my geo pumping nice conditioned air in.
And thisRemove the I take fan and filter. Make the room passive. For an 8 inch fan you would want two 8 inch intake holes.
Take the spare fan and filter and set it up to scrub the air where you are exhausting.
If you look online you can find designs for light proof intake vents basically a big box that air has to do 3 90 turns
Just find the area in 8 inch circle x 2 i think it comes out to be around 6x14 inches
I made mine around 4 by 16 i think id have to measure.
But i get huge neg pressure.
But it also helps that my room is as sealed as you can make it without being a scientist lol
Even my stud joints are caulked