We are experts in flue lining
Why might you need a flue liner?
Safety: If the structure of the flue has deteriorated this can cause dangerous gases to be released into the home. For example, if the mortar in a brick constructed chimney has eroded, harmful products from combustion can be released into the property, this can prove fatal.
Efficiency: The efficiency listings of products are produced in lab conditions, using a perfectly sized fle and optimal updraft (rate of movement up the flue) To achieve this optimum efficiency a flue liner may be required.
Compliance: Many appliance manufacturers specify a flue diameter in order to validate the warranty of an appliance. A flue lining can be used to achieve these specifications.
Types of flue liner
There are three main types of flue liner, these can be used for solid fuel fires, gas fires and stoves.
These are the most commonly used and come in various diameters and materials. The photograph below highlights our installation team fitting a stainless steel twin skin flue liner for a wood burning stove via a cherry picker. We use cherry pickers, scaffolding and roof ladders on a weekly basis. These liners come with 10 or 20 year guarantees.
Pumper liner system
This liner can be used to achieve as liner to required specifications. A forma is placed down the chimney and inflated while using cement like filler to surround it. The forma is then deflated and removed , leaving a cavity that forms the flue. These liners are guaranteed for 20 years.
Sectional pot liner
Sections of liner are lowered down from the top to the bottom of the flue and sealed at each joint. This system requires the opening up of the chimney breast at the point of a bend to guide the sections into place. This is a good choice for larger diameter flues in large fireplaces and may require scaffolding (an example of a recent project via scaffolding is highlighted below). These liners last in the region of 60 years.
It is essential that all flues are checked on an annual basis for safety reasons and those for wood burning stoves should be swept at least once every heating season.