You really should have another think about what your doing as it sounds way more complicated than in need be. I ran 3 tents (3x3 4x4 and I forget ). The 2 larger tents where for flowering while the other tent was my veg tent. All of this was in 1 room which was about 13sqm. I ran the exhaust out the window and didn't worry about an intake.
In general exhaust fans should be larger than intake but now I am repeating myself[/
You really should have another think about what your doing as it sounds way more complicated than in need be. I ran 3 tents (3x3 4x4 and I forget ). The 2 larger tents where for flowering while the other tent was my veg tent. All of this was in 1 room which was about 13sqm. I ran the exhaust out the window and didn't worry about an intake.
In general exhaust fans should be larger than intake but now I am repeating myself
basically my thoughts on the Exaust and Intake from outside are im only using the intake during the winter. And if my exausts bigger than the intake than I might be pulling too much hot air out and it might get too cold. But I could always use fan soeed controller or timer. I know im overthinking. But that's seemed to get me to a much better grow setup than I started withZ