rimworld
I have a crematorium that is configured to forever burn corpses. I have a pile of dead bodies nearby, but when i try to prioritize work in there, I only get:
Cannot cremate corpse (need material)
I am pretty sure that colonists could burn corpses before, but then apparently they stopped for unknown reason.
Instead of right-clicking the Button on the bottom, like this:
Where you are unable to see all Options, press the corresponding hot key on your Keyboard and have your Mouse e.g. in the middle of your Screen. This will bring up the list next to your Mouse Pointer:
Unfortunately, it doesn't look like material type has any effect on insulation value. The only way to improve walls' insulation is to make them thicker.
A user here did a test to check how insulation worked:
"2 Wall" means the freezer was surrounded with a double thick wall. "2 Door" means that there are 2 doors in series with each other to enter the cell, not that there are two separate entrances.
As I expected, wall material has no effect on insulation. Also, the best insulation comes from having a double thick wall. Doors can significantly increase the heat transfer, even when not in use.
This was tested on an extreme desert map in the summer. Each test cell was cooled to -20 F and steady state, then power was cut to the coolers and temp was plotted each hour.
Another thread here also supports this:
Item stats have no effect at all.
However, double-thick walls will insulate better.
Best Answer
Figured that out, seems it's a bug with the error description. It says "needs material", but in practice I have built a wall and a door in such a way that it was inaccessible, so that's what fixed it for me, built the door at the correct spot :)