Computer in cold and damp environment (a shed) [closed]

Unfortunatly I have had experience of keeping computers in cold and damp churches, and it isn't a pleasant story.

Some of the problems I came across:

Humitidy + Dust - any dust that gets into your computer will turn into mud and after a while the fans get gunked up, which seems to affect the power supply quite profoundly (3 PSUs in 2 years), the other fans will get louder and less effective. The soloution is to install filters on all of the fans, keep the surrounding area clear of dust as far as possible and clean out the inside more reguarly than a normal PC.

Humidity + Components - as dss_so mentioned the components won't stand up to the cold and damp. I have used a small chemical de-humidifier placed in the bottom of a sufficently large case which seems to have had its effect, it does fill with water quickly so be careful moving the computer around.

Cold - repeatedly starting a PC from cold (-5) as mentioned is going to cause a lot of wear, my soloution was to keep the heating in the building on low when it was unoccupied installing insulation will save on your heating bill.

I don't have any experience, but I wonder if one option would to simply setup a computer that is actually submerged in liquid. Something like this perhaps.

Mineral oil has a freezing temperature that us at -30C instead of the 0C freezing temperature of water. I am not sure what will happen at low temperatures though.

Presumably, you won't be working in there when it is -5C, so can't you just take a laptop PC into the shed when you go there to work? It solves any potential physical-security problems too.

You shouldn't have any big problems leaving a larger LCD screen in there due to the temperature, but I couldn't comment on the humidity.