In Chapter 1, we move from the concept of "cooking with fire" to the science of atmospheric pressure and thermodynamics. Understanding these principles ensures that your smoker doesn't just "burn wood," but functions as a calibrated thermal engine. 1.1 Convection Currents: The Engine of Flavor In a BBQ smoker, heat is transferred primarily through convection—the movement of energy through a fluid (in this case, air and smoke).

Comparing the builds: Offset (traditional), Reverse Flow (even heat distribution), and Vertical/Cabinet (space efficiency).

This is the complete breakdown of a 55 Gallon Drum Smoker. UDS