Does Hvac Fan Pull Air From Outside. The unit pulls hot air from the room and uses a compressor to turn the hot air into cold air trapping dirt and debris in the filter. We are going to discuss what a fresh air intake is and how a properly installed fresh air intake can increase your units efficiency performance and prolong the life of your furnace.
No heat pumps do not draw in air from the outside. However certain types of mini split indoor units can attach a duct to bring in fresh air from outside. An HVAC economizer is a dampered vent designed to save energy and give the cooling system a break.
This means that they dont use the air inside your home.
When you call for cooling the unit decides if it needs to run the AC or just open the economizer to pull in outside air. It sucks air from the top and blows down. That is actually their purpose. However certain types of mini split indoor units can attach a duct to bring in fresh air from outside.
