Chimney Flue Liners

Oct 7, 2012 by HeflerLapar694

The flue, or space inside the chimney, is subject to strains; extremes of heating and cooling to condensation and chemical reactions. Therefore it may be necessary to set up flue liners for chimneys to counteract aging or existing damage. With regards to the type of apparatus attached, you need to consider which of numerous flue liners for chimneys or chimney liners for open fires you will require.

You will find three basic forms of flue liners available: cast in situ; solid sectional liners and metal liners.

Liners that are cast in situ tend to be a cheaper option compared to the others. A flexible rubber tube is extended through the chimney then a concrete mixture is poured between the side of the tubing and the chimney, creating the lining. There disadvantages to this process are; it will take a professional eye to be sure the lining is centred and the large quantity of water introduced to the chimney during the process may cause future issues.

Solid sectional liners are made from terracotta or specialist concrete; and fit together very nearly seamlessly. This lining is more frequently found in large diameter, straight flues; particularly when an existing chimney has been repaired. This type of liner has got the benefits of being very durable, removable if necessary and no water is employed through the installation.

Metal liners belong to three types. The stiff metal liners are meant for use chiefly with wood-burning stoves. They truly are generally made from stainless steel sections and fit as well as specialised clips for a tight seal. The chimney is then back-filled around the lining. Chimney liners for open fires may also fall into this group. Flexible double skin liners may be used without backfilling when it is certain that condensation will not happen. These stainless steel liners are threaded through the chimney — the installer should be certain it is going in the right way up, they are not able to be properly used either way — then fixed in place. The outer side of the liner is corrugated, whilst the interior surface is smooth. Gas flex liners are intended largely to be used with closed gas fires or boilers and consist of a light, single skin.

Benefits of metal liners are that no water is used, they are removable, and they can easily fit in tight spaces, even in bent chimneys.

For more, please go to: wood burning stoves flue liner