Fine! We'll Use Coal for Power!...Temporarily. - Oxygen Not Included - S1 Ep14

[@akamemurasame4527]

Nice looking base man, I can tell you put a lot of effort into making the dupes feel happy! The reason your base is so hot is cause of that steam vent, it dumps a lot of heat out and produces hot water which you are pumping through out your base using regular pipes instead of insulated ones.

[@ivellios_]

That's a good point. I didn't think of insulating those as well.