Blast Furnace

Blast Furnace automatically smelts 2 ores into 1 bar (e.g. Quietus Ore into Quietus Bar) and has a chance to produce additional materials. Its speed is 2 operations per second.

It can only smelt ores of tier 1-4. Later in the game it gets replaced by Arc Smelter, which can smelt tier 5-6 ores, can smelt Metallic Hydrogen and Deuterium Rod, and also produces more additional materials.

Blast Furnace replaces earlier Electric Furnace, which can only smelt ores of tier 1-3 and produces less additional materials.