Ok so I don't get overheating. External heat increases with the same rate as individual part heat when you have 1 "room" or whatever unlocked. But when I upgrade the plant to get more boilers and turbines they can't even reach boiling temperatures because external heat reaches 175 degrees before that can happen. I tried upgrading cooling as well but that didn't do anything afaik. This also plays into turing a profit as you can't upgrade the plant and buying a new one costs too much money. either I don't understand something or something is wrong.
Also, I got the research "increase budget by 50k marks" or whatever but that didnt seem to do anything?
It seems like a cool game but it is way too confusing to understand what is going on.