what is hvac

Truestar Air Systems

what is hvac

HVAC stands for Heating, Ventilation, and Air Conditioning. It refers to the systems used to regulate the indoor environment of buildings, ensuring comfort for occupants by controlling temperature, humidity, and air quality. Here’s a breakdown of each component:


  1. Heating: This component of the system is responsible for warming up the indoor air during colder seasons. Common heating systems include furnaces, boilers, heat pumps, and electric heaters. They can use various fuels such as natural gas, oil, electricity, or renewable energy sources.

  2. Ventilation: Ventilation involves the exchange of indoor air with outdoor air to improve air quality and remove pollutants, odors, moisture, and excess heat. This can be achieved through natural ventilation (using windows, vents, and other openings) or mechanical ventilation (using fans, air ducts, and filters).

Air Conditioning: This component cools the indoor air during warmer seasons. Air conditioning systems include central air conditioners, split systems, window units, and portable units. They work by removing heat from the indoor air and transferring it outside, often using a refrigerant to facilitate the cooling process.