The Advanced Alchemical Furnace is a block added by Thaumic Bases. It is an upgraded version of the Alchemical Furnace from Thaumcraft 4. It will only accept Alumentum as a fuel, but will run twice as fast compared to the lower-tiered Alchemical Furnace.
You are extremely annoyed about the speed of your Alchemical Furnace. There must be a way to speed that damn thing up! Sure, attaching more bellows helps... A tiny bit. However, what if you could use the Aer to use those bellows right next to the furnace's flame? Well, the furnace burns too hot and quickly becomes a pile of useless smelted construction. However, you have managed to use Thaumium to make the furnace more heat resistant! The result is a furnace, functioning just as a regular Alchemical Furnace, but 2 times faster! It,however, is only achievable if the furnace runs on the Alumentum. Bellows can also be attached to achieve even more speed.