What structures are used to carry away combustion gases from fuel-burning appliances?

Chimneys and vents play a crucial role in the safe and efficient removal of combustion gases produced by fuel-burning appliances. When these appliances, such as furnaces, boilers, and water heaters, burn fuel to generate heat, they produce gases such as carbon monoxide, nitrogen oxides, and water vapor. These gases must be directed outside to prevent the accumulation of harmful fumes within the living space.

Chimneys are typically vertical structures that allow exhaust gases to rise and disperse into the atmosphere, which is essential for effective draft and ventilation. They are designed to handle high temperatures and can accommodate various types of fuel-burning appliances.

Vents, on the other hand, may not always be vertical and can be used in different configurations. They are also designed to transport combustion gases safely from appliances to the exterior of the building. Both chimneys and vents work together to ensure that dangerous gases are efficiently expelled, maintaining indoor air quality and safety.

While pipes, ducts, and flues are related to air movement and exhaust, they serve different purposes; for instance, pipes are typically associated with water or gas transport, ducts are primarily used for distributing heated or cooled air in HVAC systems, and flues are similar to vents but typically refer specifically to the exhaust pathways