Attached is a step by step manual on how to create a fuel efficient stove. It was created for a community in a village called Ngyeku, near Arusha in Tanzania but I think that this manual could potentially help others to build these stoves in community all over the world. Hopefully it proves helpful for many people trying to replicate this sort of stove.
Step 1: Create a Foundation
Step 2: Create the Layout of the Stove
Step 3: Sealing the Stove Layout
Step 4: Creating the Smoke Channels
Step 5: Applying the Finishing Touches