21 sats \ 0 replies \ @OT 23 Oct \ parent \ on: It's time to pull our own weight in hash bitcoin
I think the open source ASIC chip is still in the works. Might be ready in a couple of years if everything goes well.
The second hand S9's or S19's might be a good start to heat your home. Like you said, it has significantly more hash than a bitaxe. Maybe do one or two so you aren't spending too much on electricity. In other words, your current set up is pretty good for home mining.