Alchemical Furnace (Thaumcraft 4)

The Alchemical Furnace is a block added by Thaumcraft 4. It works in conjunction with Arcane Alembics to create essentia.

Usage
The Alchemical Furnace is powered by solid fuels such as Coal, or, for the more impatient,, of which accelerates the process. It will consume items offered and convert them into its aspects stored in s above it. Only five may be stacked on top of the furnace; because of this, items that contain 6 aspects will not start up the furnace and remain unburned. The essentia can then draw directly from the alembic into s or into s via s. The Alchemical Furnace can only store 50 units of unprocessed essentia; this is depicted by the purple bar on the left side of its GUI. If it is full the furnace will stall and the current piece of fuel will be used up. Any item composed of more than 50 essentia points will not be burned either even if it has at most five aspects.