three people in basement looking at furnace/HVAC

What is HVAC & How Does An HVAC System Work?

You’ve probably heard the term HVAC before, but many St. Mary’s County homeowners may not know exactly what it means or how these systems keep their homes comfortable year-round.

HVAC stands for heating, ventilation and air conditioning. Together, these systems help control indoor temperature, airflow, humidity and overall comfort inside your home or business.

For homeowners in St. Mary’s County, HVAC systems play an important role during both humid summers and chilly winter weather.