Many of us have a deep appreciation for the cooling systems in our homes, whether we realize it or not. What do we really know about the cooling side of our HVAC systems? Do we need to know more?

Mike De Socio is a CNET contributor who writes about energy, personal finance, electric vehicles and climate change. He's also the author of the nonfiction book, "Morally Straight: How the Fight for ...

When shopping for a new heating and cooling system, you may wonder what HVAC stands for. HVAC is an acronym for heating, ventilation, and air conditioning. This includes your heating system, central ...