in the video I did not see anything beyond the natural, ordinary pipe for heat output, at the end of the fan for blowing. it is elementary to make such architecture in 30 minutes
Natural? These miners run at 86-92 DB level, that is natural (normal)
Cough.. Cough... But you knew that already right.
You did not see the internal chambers of the piping system. If you can make this in 30 minutes to lower the DB that much then hats off to you buddy. I would love to see you try.