Well that's a start. Thanks!

@Zhukov Nope, only make it harder to heat the shelter.

Does it make the winter last longer than the actual ridiculous 7-14 days?

Thanks. It would help. I wish they can get things done. Plus fix that darn localization.xD

@Iridescent Lightning -You can't make the min temp° lower. Not that I know of at least.
- In Items -- Heter/Heater2, you can change the time interval for one fuel to be used. 0.25 by default is 4 fuel used each day if I remember right (so 1 interval is 1 day basically).
- I didn't look too much into it, I just know you can change how likely you get sick/freeze to death the more the temp° drops, but it's hard to test in-game. In any case, optimum and freezing temperatures look important and shouldn't be changed. I only figured out how heating works, see the change notes of this mod for the formula.

Is there anyway to make the min temperature even lower? How to adjust the efficiency as well as the longevity of each fuel can produce? There are too items iunder heat and sick config and I don't know how do they influence the game.

I really appreciate any mod that makes the game more challenging, great stuff.