Is a duct system considered a component of an HRV?

A duct system is indeed considered a component of a Heat Recovery Ventilator (HRV). In HVAC systems, HRVs are utilized to improve indoor air quality by exchanging stale indoor air with fresh outdoor air while recovering heat from the outgoing air.

The duct system serves critical functions in both the intake of outside air and the exhaust of indoor air. It facilitates the movement of air throughout the residence or building, ensuring that the HRV can effectively perform its job of air exchange and heat recovery. This connected ductwork is essential for the proper operation of the HRV, as it directs air from specific areas of the building and provides efficient pathways for airflow.

Other options focus on specific types of systems (centralized or portable) but do not capture the fundamental working principles of HRVs across different configurations. The integral role of a duct system applies broadly to HRVs, thereby emphasizing the importance of ductwork in executing the desired ventilation and heat recovery functions effectively.