||Smelting ore down to useable ingots has never been this easy! Feed it whatever ore you find, set the recipe, and out comes the life-blood of any successful factory!
||~ Caterina Parks's assistant Steve
The smelter as shown on the official site
The smelter is a building used to smelt ore such as Iron Ore into ingots such as Iron Ingot. Required ore and yields are currently unknown.
Alternate smelters seen in the E3 trailer.
The trailer shows a machine with a different appearance to the smelter shown on the website, which is performing the described function of the smelter, indicating that there may be more than one type, or that the design has been changed.