A - "chimney effect" B - Small sticks @ firebox. C - "Wood gas". Super insulated firebox / chimney trap heat @ burn zone, where combustion occurs @ 1,500ºF. D - The "burn zone". Radiant heat from walls burn flammable gasses from fuel. E - "Chimney effect". Smoke is eliminated. F - Heat strikes bottom of platter, ideal temperature (± 500º F). It then spreads out and heats the oven walls before it escapes. G - Radiant energy from oven dome bakes top of pizza. H - Hot air escapes.