30 Jun Details You Need About A Cowl On A Chimney
The chimney aids the passage of smoke outside the house and enable efficient ventilation. A cowl on a chimney helps prevent backflow and increase the draft of the chimney. If wind blew the smoke back inside the building, that would be a disaster. Made of galvanized iron, the aperture is perfectly fitted to the pot and this ensures no smoke is blown backwards, a function the component has been serving for many years down the line.
The name is derived from the cowl garments worn by monks. When heating a room, warm air will rise as cold air comes below, which should be effected even further by the functional component. Strong winds are a nuisance at times since they may confuse the flow and lead to smoke backflow. If properly installed, this component serves against such unwanted and unexpected occurrences.
Smoke from any source of heat in the house must be emitted to the outside. If it were to remain inside, it creates a health hazard. It causes discomfort and results in dirty furnishings and other essential valuables around. Birds and squirrels are also a menace that cowls help watch out for. Most importantly, they help prevent rainwater from entering the house directly.
They come in different shapes and designs. Other types are letter shaped, owing to the shape of the original pipe they were made from. The shape is a decoration in a way, but the key role must be realized, which is protection. The H-shaped ones come from pipes of the H shape, and it is a design that has been in use for many decades. Their key function is to stop prevailing winds and as well bar turbulence which cause downdraft and back puffing instances.
The H-cap was prominent until a better way to replace its bulkiness came along. It was most favored but its bulky nature disadvantaged it such that other options started replacing it with downdraft caps. The H type is a draft stabilizer, and although it was left for marine use, it is again gradually gaining popularity because it has a functionality of energy saving.
These components are also essential when used in the place of flues. When the flues cease functioning, the building must be protected from ingress of precipitation. Nesting birds must also be prevented at this instance, and there is no better way of curbing these concerns than using the cowlings appropriately. They are designed such that the flue still gets maximum protection and ventilation still goes on uninterrupted.