Here’s the data nostr:npub1lrjgpa9m2dl6esdah5pq7m005ymwh4glq4aet76q2zlz2f83esfsa2zvrj compiled. He also created a badass PDF with everything broken down for what worked best overall to make your own space heater.

In a nutshell: Braiins OS to underclock, Noctua fan replacement (including PSU). You could also get one of his fan shrouds and put a 6 inch intake filter to quiet it further.

https://www.cryptocloaks.com/cryptocloaks-s9-asic-space-heater-testing-data/