There are several reasons to consider the various types of liners available. If you have an older chimney, it may have been constructed without a liner or, over time, the existing liner may have become deteriorated. A practical and affordable way of up-grading or repairing them is by having your chimney relined. Liners can be used to properly size chimneys for new appliances, as well as, to prevent excessive creosote buildup when venting a woodstove through an existing fireplace.

Metal liners are constructed of stainless steel or aluminum. Stainless steel liners are used for woodstoves, as well as, gas or oil furnaces. Aluminum liners, however, may only be used to vent certain types of gas appliances. Clay tiles are inexpensive and work well for open fireplace chimneys that are suitably maintained. These may not be the best liners for gas appliances. Cast-in-place liners involve pouring a masonry product around an inflated form which is later removed leaving a smooth, seamless flue. These liners may be suitable for all fuel and can add strength to older, weak chimneys.

Liners are essential for venting fumes from home-heating appliances. As well, flue liners can save on fuel and general wear and tear on your chimney.

Keep in mind that flue-to-chimney connections must be waterproof, yet allow for heat expansion.

Professionals can help you assess your needs and choose the type of liner that will best suit your chimney.