[@TheUnknowable] Glad you made such a flawless answer. To be honest I already knew you had the answers but I was just testing. But still one more point. Wouldn't prefabs be built, so they keep as much heat in as possible for effiency? That would emit heat below 3-4 Celsius which is easy to mask even at night. Or I shoulf ask the better question. What is the annual norm for temperature. Cause that gives a good idea about how hot or cold the nights are.
Also did military come with us? Or was it only settlers.

Edit: No matter the answer, I like the RP. Will make a CS when I have time. Just asking around for possible solutions in the future :D