The difference between rigid and flexible liner kits are the flexible liner are one-piece liners. The flexible liners should be used in a chimney that isn’t straight or has offsets because the flexible liners are able to form to the shape of the flue in the chimney. The flexible stainless steel is one of the more favorable choices in liners because it will resist acid, and hot and cold temperature cycles. The stainless steel flexible liner kits withstand temperatures of up to twenty-one thousand degrees, and can be shaped into a square, rectangle, or oval cross section. The stainless steel flexible liner can be used with wood, coal, gas, oil, and pellet fuels. Flexible liners come in three different thicknesses, and tend to resist the collection of creosote, because the flexibility of the liner allows the liner to expand and contract with temperature fluctuations.
The rigid pipe comes in sections that range from six inches to four foot sections. Each section needs to be joined together with stainless steel screws or pop rivets. It can be shaped into place, but can become heavy when it is being installed due to each section has to be installed and attached together. A rigid liner can only be used in a chimney flue that has no bends.
Chim-Fab is the chimney supply company that offers rigid and flexible liner kits. It is Connecticut’s chimney supply company source. We offer a lifetime warranty on all of our liner kits, and all of our liner kits are made in the United States. Give us a call today, and let us go over our liner kit options with you today!