How it Works? 

When air is drawn into the vaporizer,airspeed increases at the entrance of the 3/32ths orifice of diffuser jet ,this increase in velocity decreases pressure.

the airflow draws in both, cooling air and hot flame from thesurrounding atmosphere , that mixture is approximately right to bring down temperature to vaporization range.

Four 1/16ths of an inch holes arranged at 90 degrees at the rear end of diffuser jet distribute evenly and slow down hot air.