Rob poses next to the boiling hot pot while everyone else makes a run for the sauce cart. As you can see in this picture, the pot itself is actually a ring filled with water around a charcoal pipe with the smoke coming out the top. The heat rises inside the pipe, boiling the water, and that little lid at the top is used to control the heat. If you open it more, it burns hotter and heats faster, if you close it completely the fire will go out. A great portable pot system.