Blast Furnace
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The Blast Furnace is a carbon fuel-powered, 7x3 pseudo-multiblock furnace used to create different alloys out of two inputs.
Crafting
The blast furnace can be crafted in an anvil with the following recipe:
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Usage
The blast furnace takes two compatible items in the top and bottom slots with irrelevant order, and can be powered by carbon fuel (coal, lignite, coke, etc); it has a capacity of at most 16 coal and it consumes half a piece of coal per operation.
It can accept materials in ingot/solid or powder form; however, it is more fuel-efficient to combine powders inside a crafting grid beforehand, and smelt the alloyed powder externally.
It can also have hot air blast input into it to increase the speed up to 500%.
Every operation will also generate 100 mB of flue gas, which can be burned with a flare stack to generate a bit of power. If it is not extracted and the buffer is full, it will be vented and generate soot.
Fuel
Below is a list of allowed fuels in the blast furnace. A block of any fuel type is equivalent to 10 of that fuel.
| Fuel | Coal Equivalent |
|---|---|
 Coal
|
1 |
 Coke (any type)
|
2 |
 Solid Fuel
|
2 |
 Presto Log
|
5 |
 Solid Fuel (Rocket Propellant)
|
4 |
 Lignite
|
0.75 |
 Coal Briquette
|
1.25 |
 Lignite Briquette
|
1 |
Some fuels are allowed, however they give more than the total capacity of the furnace, and thus can't actually be used as fuel. These fuels are:
Solid fuel (balefire) [20 coal]
Boosted presto logs [25 coal]
Presto log (balefire) [50 coal]
Boosted presto logs (balefire) [250 coal]
Trivia
- Before release 1.0.27_X5714, the blast furnace was much smaller (1x1) and had an optional blast furnace extension to accelerate it rather than hot air blast.
- It was formerly known as the alloy furnace.