HVAC is an acronym that stands for Heating, Ventilation, and Air Conditioning. Sometimes you will also see the acronym HVACR, with the extra R representing Refrigeration. This industry is a popular one for many seeking a new career as there is a great demand and the pay can be quite good. If you are interested in entering the rewarding world of heating, cooling, ventilation, and refrigeration, you will need some education. One good place to start