>>2802928Heat loss to body size ratio is a thing.
The smaller you are, the less energy you need, and you, comparatively radiate less heat.
Humans for instance, actually have a pretty large... erh, let's call is surface area to body size ratio, and no fur, hence why clothes were invented
What you want is shelter from wind, if absolutely no fire is a criteria for some reason, you are basically just going to sleep for 20 minutes, run around and do jumping Jack's until you are warm again, but no sweating
Don't know why you wouldn't want a fire though, even in a semi enclosed space, let's say, 2 o 3 walls facing the wind and a roof, even a candle can put out almost as much heat as another person, so, stick 6 tea candles and some matches in your pocket
