Before the natural development of the chimney, the buildings were limited to a single story, since there was no way to control the smoke coming off of an open fire in the structure. These days, the Anaconda Smelter Stack in Montana, tops off at approximately 585 feet. It is the current tallest freestanding brick chimney in the world. While they probably have a very unique system in place for cleaning it, your chimney is still subject to the same issues if left unmaintained. Researching how often should I clean my chimney to find out when you are due. Cleaning a…