Wind directional cowls (“Fireman” type) are constructed in a way that allows them to shift position in relation to wind direction. Even the smallest gust makes them rotate, which creates exhaust vacuum that sucks combustion gases out of the flue.
The Stainless Steel Chimney Self Adjustable Cowl Ventilation Duct Bird Guard Fireman would be an ideal fit in residential applications requiring precise control and safety protection for heating systems.
