heating, ventilation, and air conditioning (HVAC)

Heating, Ventilation, and Air Conditioning (HVAC) refers to the systems used to control indoor climate for comfort and air quality. Heating provides warmth during cold weather, often through furnaces or heat pumps. Ventilation ensures fresh air exchange, removing contaminants and maintaining air quality. Air conditioning cools and dehumidifies indoor air during hot weather, often using refrigerant systems. Together, HVAC systems work to maintain a comfortable, healthy indoor environment by regulating temperature, humidity, and air purity, improving overall comfort and health in residential, commercial, and industrial spaces.