Metal chimney flue liners are typically made of which materials?

Metal chimney flue liners are primarily made from aluminum or stainless steel due to their excellent heat resistance and durability when exposed to the high temperatures and corrosive byproducts of combustion. Stainless steel, in particular, is favored for its ability to withstand the harsh environment within a chimney as well as its longer lifespan compared to other materials.

Aluminum also offers a lightweight, cost-effective solution for certain applications, although it may not be suitable in all situations, especially where high heat or corrosive conditions are a concern. The use of these materials helps to ensure safety, efficiency, and longevity in chimney systems, making them the preferred choices in residential and commercial construction.