It's -2 here now (was -3 overnight), but I'm at work

It looks like my chip needs more volts than yours. I could have done a run at -3C, but I'm getting nervous of condensation. Although it's probably ok with the case drawing in room air and exhausting it out the window. I can see wanting to run a rad outside, but it sometimes gets very cold here when winter sets in, so I'd need antifreeze.

I visited Sweden for work in the mid 1990's and enjoyed it very much. I was in Norrköping for 5 days, with a night in Stockholm at the beginning and end.

Good luck, and don't work too hard.