3. Join the pieces
Attach the base of the beverage can to the perforated tuna can using a screw and nut, ensuring it is secure. This structure will serve as a support and air intake.
4. Improve ventilation
Using an angle grinder or similar tool, make small grooves in the sides of the tuna can to improve airflow. This will help make combustion more efficient.
5. Prepare the second can
On the other tuna can, make two holes opposite each other on the sides. Then, using the tabs from the beverage cans, create small “ears” or side supports. This will allow you to place a small container on top.
6. Assemble the combustion system
Place some steel wool or scouring pad inside the main can and soak it with alcohol. This will be the fuel source.
7. Switching on and using
Place the can of fuel inside the base structure. Carefully light it using a lighter. The flame will be steady and sufficient to heat a cup or small containers.
