Smelter

The Smelter is a very important addition to help automate your colony. The Smelter will smelt ores into ingots for your colony's needs. The Smelter will require fuel to use in their furnace(s).

The higher a Smelter's Athletics level, the faster their furnaces will smelt.

The Smelter applies Fortune to the ores they smelt. The Fortune level they apply is 1 less than the Smeltery's level. See the Minecraft wiki for details on Fortune. Fortune IV (not on the table) will average 2.67 ores per ore. This bonus doesn't apply to raw iron, copper, and gold chunks that the colony is given by the player, as it only applies to ores.