The HVAC industry, formally termed the heating, ventilation, and cooling industry, is expanding rapidly. Since it began in its modern form with the invention of air conditioning, it has been the subject of approbation by many notable figures. “The greatest contribution to civilization in this century,” proclaimed British scholar S.F. Markham in 1947, “may well be air conditioning– and America leads the way.” Things started to heat up with the invention of the radiator, appropriately invented in chilly St. Petersburg by a Polish born businessman named Franz San Galli in the 1850s. Since the inception of these major inventions, heating…