Tutorials/Automatic smelting

What you need (minimum):

 * 3 Chests
 * 3 Hopper
 * 1 Furnace

What you need to make the materials above (minimum):

 * 8 cobblestone
 * 15 iron ingots
 * 48 wooden planks

How to build an Semi-automatic furnace:

 * Step 1: Place down a chest on the ground. (This will be the chest in which the smelted / cooked items will be put)
 * Step 2: Crouch (hold down ) and attach a hopper to the chest (side or top is fine).
 * Step 3: Crouch and place the furnace on top of the hopper.
 * Step 4: Crouch and place 1 hopper on the top and 1 hopper on the left side (important) of the furnace. (The top one will insert the items into the furnace, which get smelted / cooked; The hopper on the left side inputs coal into the furnace)
 * Step 5: Crouch and place a chest on top of each hopper attached to the furnace.

Note: By using a hopper to empty the furnace, you will forfeit any experience points from the smelting.