The “V” in HVAC stands for “ventilation!” Not everyone knows this, and most homeowners aren’t very concerned about it. After all, heating systems and air conditioners are usually the stars of the show. Of course, neither of those are possible without a working knowledge of ventilation.
Taking ventilation a step further, it’s important to realize that principles of ventilation will come into play when dealing with efficiency. Simply put, you need to keep cooled or heated air inside the home! It’s a little more complicated than that, though. We’ll explain further down below.