Furnace

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Furnaces are used to smelt resources into usable products for further usage. Therefore furnaces are a key building for developement and automation. Starting with very basic stone furnaces the player can advance through research and replace them with more efficient and faster furnaces later in the game.

Furnaces can be affected by Beacons.

Furnaces

Steel furnace

Steel furnaces provide more advanced smelting capabilities resulting in higher smelting speed and therefore are more efficient use of the given fuel.

Recipe: + +
Time icon.png
5
=>
Smelting speed: 1
Max energy: 180 W (Burner)

Electric furnace

Electric furnaces provide 2 module slots which make them more flexible for special purposes. The use of electrical power makes them independent from a direct power source, but the huge heating devices take some extra space, which makes the electric furnace slightly bigger than the burner furnaces.

Recipe: + + +
Time icon.png
10
=>
Total raw:
Smelting speed: 1
Max energy: 180 W (Electric)
Module slots: 2

Overview

Furnace Total raw Speed Max energy Module slots Size
Stone furnace
Stone.png
5
0.5 180 W 0 2 x 2
Steel furnace 1 180 W 0 2 x 2
Electric furnace
1 180 W 2 3 x 3

Examples

File:Furnace-example-1.png
An advanced smelter in late gameplay. Furnaces energy consumption reduced to minimum of 20% with 2 Efficiency modules consuming only 36 W each.


File:Factorio-beacon.png
12 electric furnaces affected by a single beacon (this number can't be improved as of 7.1).