What is the definition of an outdoor HVAC? Outdoor HVAC stands for Heating, Ventilation, and Air Conditioning. It is an outdoor system located outside of a home or building and consists of a variety of components. These components are used to circulate air throughout the entire structure and control the temperature. HVAC systems work to both heat and cool the building and keep the indoor environment comfortable. The system is often controlled by a thermostat, which is set to a specific temperature. The thermostat will then tell the HVAC system when to turn on, when to turn off, and when to adjust the temperature. The system also comes with a variety of filters, which must be regularly changed in order to keep the air inside the building clean and free of pollutants. HVAC systems are an important part of keeping a home or building comfortable and energy-efficient. They are also an important part of ensuring the safety of the occupants and the longevity of the