Tag Archives: chimney cowls

Chimney Cowls Reduce The Chances Of Back Flow From Your Chimney Into The Home

chimney cowlsA chimney cowl is a covering over a chimney shaped like a hood that is designed to increase the draft that goes down the chimney in order to prevent back flow. The cowl chimney is often made from a variety of materials, however, the most common material used is galvanized iron. Galvanized iron is very effective in stopping any release of smoke from blowing back down into the house. Manufactured and used by many for centuries the chimney cowling for the fireplace resembles the cowl garments worn by monks.

Fires are built in fireplaces and as it burns the smoke rises up through the flue and then works its way up the chimney cowl at the top of the chimney or on the roof of the house. It is at this point when it hits the cowl chimney that the smoke is dispersed into the air to keep it from harming those in the home. It is at this point the chimney cowling does its job and prevents any of this smoke from coming back down the chimney and blowing through the house putting the family at risk from smoke inhalation and making the furniture dirty from the smoke dust.

There was a time prior to the Clean Air Act was voted into place when raw coal was used to build fires instead of wood. When raw coal was used in the fireplace there was a very large amount of smoke let off the fire, it was at this time that the chimney cowl was an essential item for homeowners to have in order to protect their families safe. Today smokeless fuel can be used in fireplaces thus there isn’t as much a need for cowl chimney, however, a chimney cowling is not required but it is helpful to protect the home from high winds and rain causing a back draft of smoke back down the chimney and into the home.