A burner cone has protrusions that facilitate turbulence of combustion gases. The internal air passage connection includes a tubular collar extending longitudinally from a divider separating the secondary high pressure and primary low pressure chambers, and an extensible air tube extending through and from a primary diaphragm of the booster, with the primary diaphragm defining the boundary between the primary high and low pressure chambers. A desired state of the software product is determined. The engaging jaws are engaged with the combining holes.