Do inspectors need to determine the correct sizing or adequacy of the HVAC system?

Inspectors do not need to determine the correct sizing or adequacy of the HVAC system as part of their standard inspection duties. The primary role of an inspector during a home inspection is to evaluate the functioning of the system, check for any visible defects, and assess whether the system is operational. Inspectors typically do not perform calculations or assessments related to the sizing of HVAC systems, as these evaluations are more technical and often fall under the responsibilities of HVAC professionals or contractors.

This is why the answer indicating that inspectors do not need to address the sizing or adequacy of HVAC systems is correct; their focus is on identifying visible issues rather than on ensuring that the system meets specific sizing or performance criteria.