Chimney Liners For Open Fires

Open fire so a closed appliance may have to be fitted.

Chimney liners for open fires.

Open wood burning and coal fires require a class 1 flue liner with a minimum diameter of 200mm. Chimney lining systems for wood burning stoves and open fires. Chimney liners for open fires. Clay liners used in this method must comply with bs en 1457.

The most common type of chimney liners are clay tiles. Chimney liners and twinwall metal chimney system installations. It was only in 1965 that building regulations required new chimneys to be built with suitable flue liners to protect the chimney structure and provide a smooth flue for efficient performance of the heating appliance. The effect of a chimney fire on your chimney masonry chimneys when a chimney fire occurs in a masonry chimney whether the flue is an older unlined type or tile lined to meet current safety codes the high temperatures at which they burn around 2000 f can melt mortar crack tiles cause liners to collapse and damage the outer masonry material.

Open fires with larger fireplace openings usually freestanding grates will need larger flue sizes calculated alongside the height of the chimney and required ventilation. If you re looking to install a wood burning stove or a multi fuel stove due to new regulations it is necessary to have the chimney relined. We sweep woodburners multifuel stoves open fires pellet stoves aga ranges and rayburns. Almost any home built in the last century will have clay tile liners if there is a chimney.

Clay tile chimney liners are often found in older homes. Most british open fires were and still are designed to burn coal at up to 25 efficiency. They are an inexpensive option and clay tiles perform very well with well maintained open fireplaces. Usually constructed of sectional flue liners and components made from clay ceramic and concrete a new chimney can be formed by surrounding the liners with at least 100mm of brick filling around the liners with vermiculite or insulating concrete.

A flexible chimney liner or flexi or liner is a flexible stainless steel tube that is connected to the top of the pipe protruding from your wood burning stove and at the other end within the chimney pot or attached directly to the cowl. Large and uneven flues can also create poor up draught causing smoke to blow back into the room. Refractory concrete liners with a much higher insulation value and ability to withstand thermal shocks such as in a chimney fire are to be recommended particularly for wood burning stoves.