Standard Smart H Cowl is suitable for most conventional clay chimney pots with an 8 inch (200mm) internal and 9 inch (230mm) external diameter. H Cowl is designed to prevent foreign bodies entering chimneys, to increase updraught and to prevents rain ingress. Designed for situations where the chimney is too short (conservatories) or where the chimney doesn't clear the ridgeline of the house, H Cowl is the best Chimney Cowl you can choose for downdrought problems.
This Standard model is designed to be fitted with Integral Toggles over the Flue Liner. Smart H Cowl is available in 4 finishes which are illustrated above.