Conclusion directly: The charcoal pit should pile 3 layers of high, the top layer should only put 1 log, below is full

Carbon pit efficiency has nothing to do with the size of the plane

First create a 4*4 plane, 1 height, and the wood is full.The demand for each charcoal is about 2.8.

The efficiency is not much different after the extension is 5*5.

Then create a 4*4 plane, 2 height, the wood is full.Every charcoal demand is about 3, which is significantly higher.

Create 4*4 plane, 2 height, only 1 on the top wood.The demand for each charcoal is about 2.6.

Create 5*5 plane, 3 height, only 1 on the top wood.The demand for each charcoal is about 1.9.This is the highest value.

Pack 5*5 planes to 4 heights, and only 1. Place the top layer 1. Each charcoal demand is about 2.9.It is meaningless to pile up high.

The version number is marked: MC 1.7.10; TFC 0.79.30.925