Flue

A flue is a duct or pipe in a chimney that carries smoke and combustion gases away from a fireplace, furnace, or other heat-producing device. It is an essential component for safe and efficient venting, preventing the buildup of dangerous substances like carbon monoxide. Flues are typically made of materials resistant to high temperatures, such as brick, metal, or clay. Proper construction and maintenance are crucial to ensure a flue's functionality and prevent fire hazards. Over time, a flue can accumulate creosote, requiring regular cleaning by a chimney sweep to maintain optimal performance and safety. The flue directs combustion byproducts outside.

Flue meaning with examples

• The old house's chimney had a poorly maintained flue, causing smoke to back up into the living room when the fireplace was in use.
• Before starting a fire, ensure the flue is open to allow the smoke to escape safely up and out of the chimney.
• The inspector checked the flue for cracks and obstructions as part of the pre-purchase home inspection report.
• Birds built a nest in the flue, blocking the ventilation and causing a potential fire hazard.
• A chimney sweep was hired to clean the flue of built-up creosote, improving the fireplace's efficiency.