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Frequently Asked Questions
View the answers to some of the most popular questions asked by our customers.
 
Chimney Liners
 
Why line a chimney?

For any fire to work successfully it must be connected to a sound chimney and correctly sized flue in order to take the harmful products of combustion away to the outside without causing damage to the occupants or setting the house on fire.

In houses built since 1965 Buildings Regulations require that all flues be built with liners during the construction. These are usually clay and will last for the life of the building however in older houses, or where flue liners have been badly installed, flues can leak fumes or tars into other parts of the building.

 
Definition of terms used

At this stage it is helpful to understand different terms used in relation to chimneys.

Flue: The void or passageway used to direct products of combustion from the fire to the outside.
Chimney: The structure surrounding one or more flues.
Flue Liner: The material used to form the flue within a chimney.
Chimney Terminal: The pot, cowl or other method of finishing the top of the chimney.
Flue Pipe: the metal pipe used to connect an appliance to the flue in a chimney.
 
Reasons for lining a chimney
Stove Fitters Rock The flue is leaking smoke or fumes. Stove Installation Rock Condensates of tar are seeping through and causing staining.
Stove Showroom Rock The flue is too large for the fire or appliance. Stove Installers Rock Newer chimney liners are sometimes installed upside down causing leakage.
Stove Fitters Rock The flue is too cold causing poor draw. Woodburning Stoves Rock Old flue surfaces can become eroded and rough over time resulting in poor updraught.
 
Chimney liners

There are several methods of lining that can be used but at Stove Shop we specialise in using flexible stainless steel liner and our specialist HETAS registered engineers would visit your property and do a free survey to advise you about the problems you may be experiencing and the most appropriate remedial work they would recommend.

 
Stages of lining a flue

N.B. Prior to the commencement of installing a flue liner, the chimney should be swept by a registered chimney sweep. This is usually the customer's responsibility.

Scaffolding is another requirement for Health and Safety reasons.

 
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Step 1
The flue liner is prepared by temporarily attaching a cone adapter to one end.
 
Step 2
A smoke pellet is lit in the hearth of the chimney to be lined and the smoke that comes out will confirm the exact chimney to be lined.
 
Step 3
A weighted line is dropped from the top of the chimney in order to determine the length of liner required.
         
         
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Step 4
The liner is carefully fed into the top of the chimney and down until it is visible at the hearth.
 
Step 5
The liner is secured in place and sealed into the top of the chimney and finished off with a pot and/or cowl.
 
Step 6
The hearth end of the liner is now ready to be connected to the chosen appliance
         
 

Stove Shop
7 Pike St, Liskeard
Cornwall PL14 3JE

Telephone:
01579 308 818

Stove Shop Wadebridge
Eddystone Road, Wadebridge,
Cornwall PL27 7AL

Telephone: 01208 812800


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