Okay, it's almost done.
Current Features:
-Kiln renamed Pottery, shapes and dries clay items out of boulders. Built with one building material and a watertight bucket. Goes throught 3 Stages pre-firing: Greenware, Leather-hard and Bone-Dry.
-Batch Kiln renamed Kiln and made identical to Kiln in appearance. Fire big clay items using fuel. Built with a fire safe building material.
-Firepit fires small clay items using logs. Cinderblocks (4) reaction moved to it. Make 6 Charcoal out of 6 Logs. No buildmats, it's supposed to be just an hole in the ground.
-Fire clay and Porcelain supported too.
May I release it? I need to upload Building_Kobold, Reaction_Kobold, Entity_Kobold, Inorganic_Other, Inorganic_Stone_Soil and Inorganic_Mineral.
Another thing: Peat is counted as Fired_mat as well, therefore resulting in Compressed peat items at the kiln, and maybe dirt as well. May I include a bugfix in the release for you? You just have to remove the MATERIAL_REACTION_PRODUCT token from them. It won't hinder peat reactions, since they're not working on that mechanic.