The charcoal hearth is used to create charcoal in batches of 50, using approximately 90 wood (experienced user). It is the next step in the technological progression from bonfires, though modern bonfire techniques and a large quantity of fires (10+) done at the same time can outperform a group of hearths both for efficiency and speed. Largely people choose the charcoal method that suits them best.
See the charcoal guide for detailed notes on the operation of the hearth, or the bonfires page for charcoal-making the bonfire way.
Built: in a compound, uses 12x19 cells
Skill/Tech required: Basic Charcoal Production