Smart Vent Chimney Cowl

The Smart Vent cowl prevents foreign bodies entering the chimney and is designed to increase updraught and reduce downdraught.

The closed upper surface of the terminal impedes the downward movement of wind which might otherwise create a down draught within the chimney. The curved shape of the four vertical walls behaves like an aerofoil which creates a negative pressure on the inner curved edge as wind passes over and through the terminal. This action creates a suction to increase the upward chimney draught.

Promotes positive updraught
Helps reduce downdraught
Prevents foreign bodies from entering chimneys
Fits most conventional chimney pots
Durable construction and easy to install
Manufactured from 1.2mm thick high grade aluminium alloy
Suitable for use on solid fuel systems - logs, coal, peat
Is not suitable for GAS.

Fits most chimneys , 9 inch opening fits over standard 8 inch pots with screws to tighten in. As new, unused, just a bit dusty. Collection from Bray near DART