What does the term "duct runs" refer to?

The term "duct runs" specifically refers to the lengths of ductwork that extend between two points, typically from an air handling unit to a room or other location where air needs to be delivered or extracted. Understanding duct runs is essential for HVAC design and installation because they play a critical role in the air distribution system's efficiency and effectiveness.

Measuring and properly designing duct runs are necessary to ensure adequate airflow, minimize resistance, and reduce noise, all of which contribute to the overall performance of heating and cooling systems. Therefore, considering the layout and the distance of duct runs can significantly impact the energy efficiency and comfort level provided by the HVAC system.