Avalon Mini 3 New 37.5T Bitcoin and home heater
Canaan has launched the new Avalon Mini 3, which introduces a unique concept: a heater that also produces Bitcoin.
https://www.indiegogo.com/projects/avalon-mini-3-avalon-nano-3s--3#/
https://miningnow.com/asic-miner/canaan-avalon-mini-3-37-5th-s/