Smokeshafts are often referred to as chimneys, flues, or smokestacks. While these terms are often used interchangeably, there are some distinctions between them. Chimneys are typically found on buildings and homes and are used to vent smoke from fireplaces and furnaces. Flues are similar to chimneys but are often smaller and used in industrial settings. Smokestacks are generally larger than chimneys or flues and are used in factories and power plants to vent exhaust gases. Other synonyms for smokeshafts include vents, fumes, and exhausts. Whatever word you choose to use, the important thing is to make sure that it accurately describes the function and purpose of the structure.