Topic for posting reports on bugs, crashes, or features that don't work as intended. If it is a crash, please include the crash report that the game generates either as a picture or as text.
furnase have ony 6 slots, (7 with production) and it only takes fuel from ingridient slots, so this isn't a bug, it's how this game works
Not sure if you saw my other comment about this but:
When you choose a chest as the input location for the floating hands, it increases the storage limit for the chest. It doesn't seem to decrease it if you choose a chest as the output, though.
When you ask girls about their body, the engineer says "or a jug of tea..." which doesn't seem correct:
So basically none of the information is available if you haven't held the item at least once first, which is intentional, but maybe the temperature required to make the item should be something that the book shows regardless.