Not sure if this is a good idea, i do have two Buildings on my property the house where i live, and a barn, i need some "off site" backups of my stuff, it would be great to have a server over there.
I did run some Embedded Computers without issues at -15°c but i'm not so sure how a server with harddisks will handle this environment, i guess i can add some heating and air filters to a rack but is that enough? Humidity is also a Problem, not sure how to deal with that...