If you have a chimney in your home, it’s important to understand the role of chimney liners. These are special materials made from clay, ceramic, or metal that help keep the inside of your chimney safe. When you use your fireplace, the liners help to direct the smoke and other byproducts outside, so that you don’t have to worry about them building up inside your home. Chimney liners also protect the walls of your chimney from getting too hot or getting damaged over time. In fact, most safety codes require that you have a chimney liner installed. So if you want to make sure that your chimney is safe and efficient, it’s important to make sure that you have a chimney liner in place.
Back in the 1940s and 1980s, the National Bureau of Standards conducted tests on masonry chimneys to check how well they held up over time. People were starting to get worried about how safe they were. The results of these tests showed that chimneys without a liner were really dangerous. The researchers even said it was almost a crime to build a chimney without a liner.