Can the same vent be used for both natural vent systems and forced vent systems?

The proper approach for venting systems is to maintain separate systems for natural ventilation and forced ventilation due to their fundamental operational differences and requirements. Natural vent systems rely on buoyancy and natural air movement to facilitate airflow, while forced vent systems use mechanical means, such as fans, to move air.

Using a single vent for both systems can lead to inefficiencies and safety issues. For instance, the airflow patterns created by a forced vent could disrupt the natural airflow that a natural vent system relies upon, potentially causing backdrafts or reducing the effectiveness of either system. Therefore, regulations and best practices typically mandate that these systems be distinct to ensure they operate safely and effectively, highlighting the importance of dedicated ventilation design tailored to each type's unique characteristics.