Thanks so much for the advice. Could you give me some tips on creating an air funnel? Something I'm wondering if I could cover a rack in polystyrene foam, then attach a inline fan duct for intake and also for exhaust, maybe create a loop that intakes air from outdoors at the bottom of the rack, and exhausts hot air back outdoors at the top of the rack. I have no experience cooling things like this so no idea if this is even a workable idea lol.
This Idea is exactly how DC's have been doing it for decades
but its far too complicated to execute on a budget.Just create a simple tarp partition connecting the exhaust to the rear end of the machines, partitioning off the rest so that the air that gets exhausted out doesn't enter back into the garage.