Air intake for this type of biochar burner
I cut three square holes like this and when we burnt it was finished in 3.5 hrs but nothing was charred? The char in the picture was from the first burn that was 2o hrs… All done. Reply from Peter Hirst: You need at least four of those holes, probably six, evenly spaced around the […]
Air intake for this type of biochar burner Read More »