HVAC stands for Heating, Ventilation, and Air Conditioning. With your HVAC Certification, you can perform maintanence, installation, and repairs on a variety of systems that fall under this umbrella. You will often be going from place to place and will be working with your hands. You'll have to lift heavy objects and work in dirty or dark places at times. You will have a wide range of knowledge on how to work with these machines and systems, and you will be working with complicated machinery. If this sounds exciting, then consider getting your HVAC Certification!