What does a fully ducted configuration rely on in HRVs and ERVs?

A fully ducted configuration in Heat Recovery Ventilators (HRVs) and Energy Recovery Ventilators (ERVs) relies on the internal fans of the unit to properly circulate and exchange air throughout the building. These fans are crucial as they create the necessary airflow to pull stale indoor air out and bring fresh outdoor air in.

In a fully ducted system, air distribution relies heavily on these fans to ensure balanced ventilation, which enhances energy efficiency and indoor air quality. This configuration allows for the treatment of air through heat or energy exchange before it enters the living spaces, maximizing the benefits of the HRV or ERV's design.

This contrasts with other elements like exterior air temperature, which can influence performance but does not directly drive the primary function of air circulation. Similarly, while manual operation of the HVAC system and filtration systems play important roles, they do not serve as the fundamental mechanism enabling the ducted configuration to function effectively. The internal fans are integral to the operation and effectiveness of HRVs and ERVs in a fully ducted system.