Bricked Blast Furnace

Introduction
The Bricked Blast Furnace is a multiblock the main purpose of which is getting first steel in the steam age. With the bronze plated blast furnace deprecated, the Bricked Blast furnace is your go-to method to create steel until you make an Electric Blast Furnace. It's recipes are listed under the NEI "Primitive Blast Furnace" tab. This is the first machine where pollution may become an issue for some players, as you are likely to build up to 4 (or even more!) blast furnaces due to their slow processing speed; resulting in a gradual build up of pollution if left running constantly for long periods of time. Don't let the pollution discourage you, however, you will be able to make many stacks of steel before the pollution is noticeable.

Construction
The Bricked Blast Furnace is constructed by laying a 3x3 foundation of the Firebricks followed by hollow ring above it with the Bricked Blast Furnace (Controller) on front center and another two hollow rings above it.

''Attention! Top center block of the Bricked Blast Furnace must be empty.'' By sharing the walls the Bricked Blast Furnace can be constructed in different versions: 1x1, 1x2,..., 1xM, 2x2, 2x3,..., 2xM.

M - natural number.

The formula for defining quantity of the Firebricks for 1xM versions:

$$N = \begin{cases} 32, & \text{if }\text{ M = 1} \\ 32+20(M-1), & \text{if }\text{ M > 1} \end{cases}$$

N - quantity of the Firebricks

M - quantity of the Bricked Blast Furnaces (Controllers)

The formula for defining quantity of the Firebricks for 2xM versions:

$$N = \begin{cases} 84, & \text{if }\text{ 2M = 4} \\ 84+32(M-2), & \text{if }\text{ 2M > 4} \end{cases}$$

N - quantity of the Firebricks

2M - quantity of the Bricked Blast Furnaces (Controllers)

For example:

The 1x1 version requires:


 * 32 Firebricks


 * 1 Bricked Blast Furnace



The 1x2 version requires:


 * 52 Firebricks


 * 2 Bricked Blast Furnace



The 2x2 version requires:


 * 84 Firebricks


 * 4 Bricked Blast Furnace



The 2x3 version requires:
 * 116 Firebricks


 * 6 Bricked Blast Furnace

Usage
There are 188 recipes in the NEI (ver. 2.1.2.0) for the Bricked Blast Furnace.

The Bricked Blast Furnace is the only way to obtain first steel in the tier 0.5 - Steam. [[File:Interface of the Bricked Blast Furnace with marks.png|thumb|Interface of the Bricked Blast Furnace


 * 1) Construction guide
 * 2) First input slot
 * 3) Second input slot
 * 4) Slot for the fuel
 * 5) Recipe button
 * 6) First output slot
 * 7) Second output slot
 * 8) Slot for the ashes

]] Only the following fuels may be used in the Bricked Blast Furnace:


 * Coal Coke
 * Coal
 * Charcoal
 * Charcoal Dust
 * Coal Dust
 * Coal Powder
 * Block of Coal Coke
 * Block of Charcoal
 * Block of Coal
 * Colored Block of Coal

Every recipe produces following byproducts:


 * Tiny Pile of Ashes
 * Tiny Pile of Dark Ashes
 * Ashes
 * Dark Ashes

To create steel, simply add fuel and iron, then wait for quite a while.

The Bricked Blast Furnace can also be used to obtain extra output from metal oxides and sulfates (Pyrite, Magnetite, Cassiterite, etc.). Doing this returns 3 ingots for every 2 dust, however the processing time may reduce the practicality of doing this.

Pollution
Amount of the pollution that emmited by the Bricked Blast Furnace may be defined by the following formula:

$$P = 200 \cdot M$$

P - amount of the pollution per second

M - quantity of the working Bricked Blast Furnaces (Controllers)

Trivia

 * There is lava inside the working Bricked Blast Furnace but it can't be pumped out
 * You can save 8 Firebricks by sharing the walls of the 2xM version instead of 1xM one.