Is a chimney compatible with ventilation?
In the presence of passive stack ventilation, there is no risk of the smoke being pushed back being reversed from the chimney to the inside of the dwelling, since when the chimney is operating, its stack effect is much greater than the natural stack effect of the ventilation ducts. In the presence of centralised mechanical ventilation, an automatic device should cut the ventilation off as soon as the chimney is used, in order to avoid any backdraft from the chimney.
