De Vielle Chimney Cowl Black
A chimney cowl is a hood-shaped covering used to. It's usually made of galvanized iron, is fitted to the chimney pot to prevent wind blowing the smoke back down into the room below. When using an open fire to heat a room the smoke rises through a flue to a chimney pot on the roof. Under normal conditions, the warm air from the fire will rise up the chimney emitting the smoke with it and dispersing it at rooftop level where it is less of a nuisance. A secondary function is to prevent birds and squirrels from increase the draft of a chimney and prevent backflow testing in the chimney. They often also act as a rain guard to keep rain from going down the chimney. A metal wire mesh is sometimes added as a spark arrestor.
Features
- Functions to prevent birds and squirrels from nesting in the chimney
- Stainless steel bird guard mesh fitted to reduce bird and vermin entry
- Increases the draft of a chimney and prevent backflow.
- Cowls are designed to afford protection to the flue while still allowing a degree of ventilation.