From a pure math point of view, and leaving ideals a side, this machine will make you around 10K sats per day working full time at today's difficulty.
If you buy Bitcoin with the $1,100 at todays price, you will get 6,6M sats.
The cost of the electricity will be around $80+ per month, and this machine probably will be good to heat 1 big room. $80 is what I pay to heat my whole house.
40db can be quite anoying if you are watching TV.
You can buy on eBay an old S9 for $250 and watch a YouTube video in how to transform it in a silent space heater yourself!
Kaboomracks is selling S9s for $125/ea or 3 for $300.
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