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Passive Stack Ventilation

System 2 - Passive Stack Ventilation

System 2

Passive stack is a non-mechanical approach to ventilation, where air vents are located in various locations around the dwelling. Using the principle of convection, currents allow the movement of air through the ducts.

Unfortunately with passive stack airflow rates are very much weather dependant with a risk of over or under ventilating. In addition, background vents must be installed.

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