You can run them in a shed no problem, the heat will warm up and dry up the place. Prepare a plan where you can heat up the place BEFORE starting up the miner, IE do not start the miner at -20 C
1 miner might not be enough to warm however. might need 4 hehe.
Okay thanks. I guess I could also just use a heater to heat up the place before starting them.
And the heat/cold mix won't create too much moisture?
You should provide a good ventilation in the place. Of course too much moisture will be created but a good ventilation will dry the place out. Miners have their ventilation by themselves but I'm talking about the room ventilation.