All this blowing out of heats doesn't make much sense to me than using a air conditioner, this will change heats to pure coldness unless you don't have free electricity, I think this is the best solution to heat than finding ventilations and fans blowing out heats
Know how we can tell you dont mine on any scale at all...yeah its the AC....
And there is no need to use AC...20 degrees F is what an ac unit will cool from ambient air input vs output temp. You can google that...
So instead of being 120 F inside you can be 100F (or 80F from 100F) So from 37c to 27c....
You gpus will operate just fine at 70c ... or 158F....
Fix your airflow problem and you wont need AC even when ambient is 110F+ (43c+)