Blast Furnace
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A lava/solid fuel-powered furnace used to create different alloys out of two inputs. Formerly known as the alloy furnace. Most recipes have a crucible equivalent, which can be much faster.
Usage
Put two compatible items in the top and bottom slots (order does not matter) and power it with a lava bucket or certain solid fuels.
The furnace can also accept the powder form of the items, however, if you have the powder form of both, you might as well just put them into your mini 2x2 crafting grid, made the powder form of the allow, smelt it, and save some fuel and time. Some ingredients for the recipes don't have powder forms, so in order to produce them, you'll be forced to use the blast furnace.
Recipes
The blast furnace has relatively few recipes, but all of them are very useful. Here they are (Exceptions to the 2 output rule will be noted):
- Steel = Iron ore + Coal
- Steel = Iron + Coal (produces 1)
- Red copper = Copper + Redstone
- Advanced alloy = Steel + Red Copper
- Napalm = Diesel canister + Slimeball (produces 1)
- Magnetized Tungsten = Tungsten + Schrabidium nugget (produces 1)
- Neutron Reflector = Tungsten + Coal
- PaA Alloy Plate = Mixed Plate + Gold plate
- Starmetal = Saturnite + Meteorite powder
- Technetium Steel = Steel + Technetium-99 nugget (produces 1)
Fuels
The blast furnace can accept alternative fuels over the non-renewable lava. Most are high yield solid fuels like coal, coal blocks, solid fuel, coke, and charcoal. The fuel storage takes a lot of coal/charcoal to reach its approximate maximum, a whopping stack of 64 (or ~6 coal blocks). It also consumes a lot of it even in a single operation, so make sure to farm up before using it. Blaze rods (~12) and powder (~42) are also accepted, however. So, if you have access to a Nether Fortress, you can acquire infinite blast furnace fuel.
Notes
- Will reward you with the Bobmazon Metalworks achievement when crafted.
- A bucket of lava will fill it to the top with fuel, so if the furnace has just a tiny amount of fuel in it, it won't accept it.
- EXTREMELY slow without the blast furnace attachment.
- The crucible can be used instead to vastly improve the speed of alloying
Trivia
- In older versions, the "alloy furnace" accepted charcoal as an alternative to coal in the recipes. So, charcoal must be used as a fuel, not an ingredient, vice versa for coal.
Nuclear Blast Furnace
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The nuclear (or RTG) blast furnace is an upgrade to the standard blast furnace powered by up to 6 RTG pellets instead of solid fuel. Requires a minimum of 15 heat to operate which is 3 Plutonium-238 RTG pellets equivalent. It is significantly faster than the regular blast furnace.
Pellets with higher power levels will have a better effect of heating and thus speed. The furnace has a max heat level however, going over it will not increase operation speed (which is instantaneous).