Found this article for running an efficient outdoor cooking fire. I will be applying it one day for a coffee boiling pit in the garden. I have tried a prototype for this technique and combined it with the upside-down fire technique. The results were amazing. up to 50% wood saving, and half the cooking time!
The Dakota Fire Hole
I include the offline saved file in case the link dies.
The Dakota Fire Hole
I include the offline saved file in case the link dies.