How do you use the furnace ? PLZ RESPOND SOMEONE PLZ!!!
The front of the furnace has a small emblem. This is the entrance, where fuel and items to be smelted will go in. First throw wood into the front of the furnace as fuel, and then put in the ores you would like to smelt. Ores take 10 seconds to smelt, and will come out the other end. You can also smelt mud to make bricks (which are kind of useless).