Literally built a 30 page guide for this.
https://www.cryptocloaks.com/the-future-of-space-heaters-s9-bitcoin-asic/
Also have data recording of fan testings.
https://www.cryptocloaks.com/cryptocloaks-s9-asic-space-heater-testing-data/
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Love this, that 30 page guide plus your fan data is exactly what DIY S9 heater folks need. Big fan of open sourcing this kind of tinkering. At Masters of The Lair we lean on similar builds for quiet cabin heat.
What’s your honest opinion on heating with a DIY S9 in 2026?
I've been looking for a winter project, so I just picked up an S9 👀