I’ve been eyeballing the Avalon nano 3 myself. Not nearly as cool as the bitaxe but does provide ~3TH/s. My basement is freezing in the winter and early spring. Been needing a source of heat for some seedlings I want to start next year too, so two birds one stone. I do feel guilty supporting a big commercial miner however. I’m conflicted.
Did my own research.
With 700GH/s this Bitaxe thing is a toy. In the @`OCEAN`pool it would have just a 0,000021% oh hashrate's share.
Basically nothing.
But.
Apparently it contributes significantly to the decentralization of the process of bitcoin mining.
People way smarter than me (like Luke Dashjr and many others) made a big deal of this issue and as far as I can understand, it makes sense.
If having a single entity ruling over the 51% of the nodes is a centralizing issue, why would we want 3-5 gigantic competitors finding the majority of the blocks?
Bitaxe apparently fixes this, one drop at the time (just like in bitcoin fashion).
For this reason I'm convinced to buy a Bitaxe Supra (find this website, certified by the same people that make the Bitaxe https://bitronics.store/product/bitaxe-supra/)
I still am not sure whether I'll join a pool like Ocean (open source and permissionless) or I'll solo mine. I guess both instances work in favor of decentralization, so I'll decide when the thing comes in the mail.
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Discussion
Well for not so much more money you can get the bitaxe if it's the one you value the most. I doubt it can provide an efficient source of heat, but even the 140 W/h of the Avalon won't be much help IMO.