The Coal Maker is a very early game machine used solely for the conversion of Wood into Coal. It should be noted this is a very inefficient way to create Coal and can use your supply of Wood which can be detrimental to the later-game experience.
Below are all the recipes, which this building is capable of producing. Note, that some of them may be locked behind Research, and not immediately available in your game.
This article invokes definition of game's source data (either directly, or with one or several template invokes).
Editing it will result in updates to some of the stored tables, which in turn updates automated data lists. See more.
If you've found incorrect data, related to this article's topic, it is a good place to start searching for definitions, requiring updates.