Furnace

The furnace is the job block for the Smelter.

Craft
The grindstone can be crafted by the player through the crafting interface or by the crafter with a workbench.

In both cases, the recipe needs the following ingredients:
 * 1 × Stonebricks.png Stone Bricks
 * 4 × Copperparts.png Copper Parts
 * 4 × Coppernails.png Copper Nails
 * 2 × Tin.png Tin

Usage
The furnace is a job block. It can be used by a colonist to work as Smelter.