Chimney Flue Liner Open Fire

However a gas fireplace will require a much smaller flue liner you are able to use a flue liner that is only 5 to 6 inches in diameter.

Chimney flue liner open fire.

Flue liners can be of fire clay refractory quality concrete or metal usually high grade stainless steel. Flue pipe a flue pipe is a single skin metal pipe used to connect a fire or appliance to a chimney. However for any fire to work successfully it must be connected to a sound chimney and correctly sizedflue. The type of fireplace will determine the size of flue liner for example an open fire fireplace will require a flue liner that ranges in diameter from 8 to 10 inches.

Open fires with larger fireplace openings usually freestanding grates will need larger flue sizes calculated alongside the height of the chimney and required ventilation. In the nbs tests unlined chimneys allowed heat to move through the chimney so rapidly that the adjacent woodwork caught fire in only 3 1 2 hours. This means that the flue outlet needs to be positioned sufficiently high above the roof surface and surrounding buildings to prevent it being affected by wind eddies or downdraughts. Chimney liners for open fires.

Sometimes people say but i have had an open fire in this chimney for years and no problems. Flue liner the flue liner is the material used to form the flue within the chimney. The functions of a chimney are to safely remove the products of combustion from the fireplace or appliance to outside without causing danger to. It is common to find that old chimneys are in a poor condition and can leak fumes particularly if the flue is not lined.

The liner protects the house from heat transfer to combustibles while being installed in a masonry chimney. Be it an open fire closed stove or roomheater the leaping flames and glowing coals are the real heart of the home. Flue gases from the stove must be able to discharge freely without presenting a fire or health hazard whatever the wind conditions. Leaves and animal nests inside a flue can quickly fuel a chimney fire when touched by loose embers from a fire.

Most british open fires were and still are designed to burn coal at up to 25 efficiency. A chimney fire is more likely far less likely if lined and would also be contained within the metal tube if you do not fit a chimney liner. Open wood burning and coal fires require a class 1 flue liner with a minimum diameter of 200mm. A chimney cap on the crown around the outside opening of the flue will keep debris.

Lining old chimneys a. 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.