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Flexible Chimney Lining for gas fires
Lining for gas fires
Open Gas Fires need a 7” diameter, single skin flexible liner. Sometimes this needs to be increased in diameter, up to 10” internal diameter. The bends or doglegs in the chimney are not at a 45-degree bend or have something in the flue that stops it coming down the chimney. Our fitters have the experience to deal with this. Sometimes we have to knock a hole in the chimney breast to enable the fitting of the flue to go down safely - though this is not the case often. Surprisingly it is often the newer houses, later than 1930, that this can be an issue. Most Victorian and Edwardian flues are built with a 9” x 9” internal flue.
Often chimneys leak at the top of the chimney stacks between the mortar joints. This can occur anywhere in the chimney. This is very dangerous and will require that the chimney be properly lined.
The image shows that flaunching at the top of the stack has failed over the years and it has failed its smoke test. When this happens, water can leak through and cause water damage to the flue and often the room below. This chimney needed to be lined and the flaunching removed and replaced by our expert HETAS and Corgi registered fitters.
The other image shows a “Gather” attached to an Insulated Twin Wall system. “Gathers” are also used with flexible liners to gather the fumes into the liner on both gas and solid fuel fires. These are measured by our experts on the site survey and made to order. This example is one of the larger sizes, most are smaller to fit into a brick chimney breast.
Sometimes the chimney looks fine, but the mid-feathers inside the flue are breached and smoke is leaking from one flue to another or into your neighbour’s chimney.
Before installing an open fire you must use a NACS registered chimney sweep, they will sweep the chimney and issue a certificate after completing an integrity test. This certificate of sweeping will confirm if the chimney needs lining.
Testing of flues should be done at least once a year if there is not a liner fitted, to ensure the chimney remains safe. If the house is old, it is advisable to have the chimney lined, as most period buildings would fail a smoke pressure test.
Our fireplace fitters are tidy and polite and are proud of their trade.
Open Gas Fires need a 7” diameter, single skin flexible liner. Sometimes this needs to be increased in diameter, up to 10” internal diameter. The bends or doglegs in the chimney are not at a 45-degree bend or have something in the flue that stops it coming down the chimney. Our fitters have the experience to deal with this. Sometimes we have to knock a hole in the chimney breast to enable the fitting of the flue to go down safely - though this is not the case often. Surprisingly it is often the newer houses, later than 1930, that this can be an issue. Most Victorian and Edwardian flues are built with a 9” x 9” internal flue.
Often chimneys leak at the top of the chimney stacks between the mortar joints. This can occur anywhere in the chimney. This is very dangerous and will require that the chimney be properly lined.
The image shows that flaunching at the top of the stack has failed over the years and it has failed its smoke test. When this happens, water can leak through and cause water damage to the flue and often the room below. This chimney needed to be lined and the flaunching removed and replaced by our expert HETAS and Corgi registered fitters.
The other image shows a “Gather” attached to an Insulated Twin Wall system. “Gathers” are also used with flexible liners to gather the fumes into the liner on both gas and solid fuel fires. These are measured by our experts on the site survey and made to order. This example is one of the larger sizes, most are smaller to fit into a brick chimney breast.
Sometimes the chimney looks fine, but the mid-feathers inside the flue are breached and smoke is leaking from one flue to another or into your neighbour’s chimney.
Before installing an open fire you must use a NACS registered chimney sweep, they will sweep the chimney and issue a certificate after completing an integrity test. This certificate of sweeping will confirm if the chimney needs lining.
Testing of flues should be done at least once a year if there is not a liner fitted, to ensure the chimney remains safe. If the house is old, it is advisable to have the chimney lined, as most period buildings would fail a smoke pressure test.
Our fireplace fitters are tidy and polite and are proud of their trade.
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