Which component typically undergoes inspection in a perimeter duct system?

The inspection of a perimeter duct system primarily focuses on duct joints because these connections are crucial for maintaining the efficiency and effectiveness of the heating and cooling system. Properly sealed duct joints prevent air leaks, which can lead to energy loss and reduced overall system performance. Inspecting these joints helps to ensure that air is flowing correctly throughout the system, optimizing comfort in the living space and reducing utility costs.

While other components, such as thermostats, return vents, and the furnace itself, are important aspects of the home’s HVAC system, they do not specifically pertain to the perimeter duct system’s construction and integrity in the same way duct joints do. The primary concern during an inspection of a perimeter duct system is ensuring that it is functioning optimally without any leaks or disconnections at these critical points.