Static pressure is the measure of resistance that the air handler's blower must overcome to move air through the ductwork. If the static pressure is too high—due to crushed ducts or dirty filters—the system will work harder, use more electricity, and provide less comfort. This is a critical factor to consider when you shop all ducted systems or choose a concealed duct air handler. Our Cooper&Hunter ducted units are engineered to handle varying static pressures to ensure consistent airflow. High static pressure can lead to noisy vents and uneven temperatures across different zones. Always ensure your ductwork is sized correctly for the 48000 BTU or larger capacity system you plan to install.