HVAC (Heating, Ventilation, and Air Conditioning) systems are essential for providing a comfortable living environment in homes and businesses. HVAC systems are designed to regulate the temperature, humidity, and air quality in a space. Heating and cooling units are the main components of an HVAC system. Heating units are responsible for providing warm air to a space during cold weather, while cooling units are responsible for providing cool air during hot weather. The two components work together to maintain a comfortable temperature in the space. HVAC systems are also designed to provide ventilation, which is the process of exchanging air between the indoors and outdoors. This helps to keep the air in the space fresh and free of pollutants. HVAC systems are an essential part of any home or business, as they help to maintain a comfortable and healthy living environment.