Furnace

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:	File:Steel-bar.png 8 + File:Stone-brick.png 10 + 5 => File:Steel-furnace.png 1
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:	File:Steel-bar.png 15 + File:Stone-brick.png 10 + File:Advanced-circuit.png 5 + 10 => File:Electric-furnace.png 1
Total raw:	File:Copper-plate.png 50 File:Iron-plate.png 25 File:Steel-bar.png 15 File:Stone-brick.png 10
Smelting speed:	1
Max energy:	180 W (Electric)
Module slots:	2

Overview

Furnace	Total raw	Speed	Max energy	Module slots	Size
File:Stone-furnace.png Stone furnace	5	0.5	180 W	0	2 x 2
File:Steel-furnace.png Steel furnace	File:Steel-bar.png 8 File:Stone-brick.png 10	1	180 W	0	2 x 2
File:Electric-furnace.png Electric furnace	File:Copper-plate.png 50 File:Iron-plate.png 25 File:Steel-bar.png 15 File:Stone-brick.png 10	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).