I am starting to wonder why my server system is making SO much heat. I live in Norway, so outside temperature is around freezing, and my house I keep it around 25 degrees inside, except no heating in the server room. It got a roof extraction vent that is constantly sucking out air in that room, and I just had it inspected to be working perfectly fine.
Still its always over 30 degrees in that room, and the hot air is oozing from the server. Its just a consumer based drive and a couple of switches, plus a UPS, and its so warm in there.
Im getting afraid the high temperature can affect the hardware when its 30-35 degrees inside the server rack
Maybe energy is cheap there or OP is rich, I live in the UK and was surprised by the temperatures they quoted.
I would say though that Scandinavian houses are known for being very well insulated and energy efficient.
My heating is on 19C when I’m home, lowered to 10 while I’m out/sleeping because my cat has his own fur coat to keep him warm and I have a 13 tog duvet
I hope you have very low humidity, going that low can create a risk for mold forming in your walls.
Lived here 8 years and no mould issues so far.