Kiln (Minecraft 2)

Kiln recipe:
Cobblestone	Cobblestone	Cobblestone
Cobblestone	Pile of Ash	Cobblestone
Cobblestone	Cobblestone	Cobblestone
Kiln recipes:
In 	Out 	Gas?
Cobblestone	Stone 	N/A
Sand 	Glass 	N/A
Iron Ingot 	Steel Ingot 	
Shale 	Plastic Ingot	Smog
Dough 	Bread 	Smoke