Although Chicago is known as the Windy City, it is in fact less windy than many other major American cities. Average wind speeds range from 8 miles per hour (13 km/h) in late summer to 12 miles per hour (19 km/h) in spring months.
A flue is a duct, pipe, or opening in a chimney for conveying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors.
Creosote buildup within the flue can also provide the hazard of fire. In this chimney, Flue A, servicing the fireplace or woodstove, has a creosote buildup, cracked or missing pieces of linear, and eroded brick and mortar. The condition of Flue A can lead to fire or carbon monoxide poisoning.reosote buildup within the flue can also provide the hazard of fire. In this chimney, Flue A, servicing the fireplace or woodstove, has a creosote buildup, cracked or missing pieces of linear, and eroded brick and mortar. The condition of Flue A can lead to fire or carbon monoxide poisoning.