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Smelting Furnace Smelting Furnace
Smelting Furnace.png
Tier Large
Group Module
Type Crafting
Crafted at Medium Printer
Recipe 2x Resin
1x Compound
Unlock Cost 250 Bytes

The Smelting Furnace is a Crafting Module in Astroneer that is crafted at the Medium Printer. It is used to smelt raw resources into Refined resources.


Output Input Module
Smelting Furnace Resin x2
Medium Printer


The Smelting Furnace refines raw resources when the player turns on the furnace. Nuggets will be pulled from attached storage as one of the four slots on the bottom becomes available until all smeltable resources are refined. The furnace will stop if there is no free storage to place the smelted output item, and will resume when a space becomes free.

The following table lists the raw resources and what they refine to.

Input Output
Organic Carbon
Quartz Glass
Clay Ceramic
Malachite Copper
Laterite Aluminum
Sphalerite Zinc
Hematite Iron
Wolframite Tungsten
Titanite Titanium
  • Power Consumption Rate: 5 U/s


  • The Smelting Furnace has gone through the most changes during its development. It currently has 4 versions and an automated Pre-release version of it, which in turn has another model.
  • Smelting takes 15 seconds per ingot with full power, or 75 Units of power used per ingot.
  • If you place Hydrogen, Sulfur, Methane, or Hydrazine into the Smelting Furnace, it will explode.


  • The Smelting Furnace will sometimes stop making sounds when filling with resources. This can be fixed by re-attaching the Smelting Furnace to the platform.