Chimney Flues and Liners

Chimney Relining as Standard with all stove Installations

Relining

Why Chimney Liners are Important

The chimney liner of a fireplace is one of the most critical components of the operating system.The chimney liner is designed  to safely expel hot flue gases to the exterior atmosphere. The proper sizing of these liners is very important. If the liner is too small, the gases will back into the home and cause smoking issues. If the liner is sized too large, the smoke will travel slowly up the chimney and large amounts of creosote will form on the liner. Creosote build-up is one of the major causes of chimney fires.

Types of chimney flue liners

There are many types of flue liners and flue systems in use and on the market today, it is important that you seek correct advice if you intend to carry out repairs on an existing  chimney or you are having a new appliance installed.

Stainless Steel Flexible Liners

Stainless Steel Flexible Liners

Stainless Steel Flexible Liners Stainless steel flexible liners are certified to BS EN1856-2. Flexible liners are used to reline an existing chimney. Care must be taken when selecting a flexible liner.There are two types of flexible liners:Single skin liners for use with gas appliances and Twin skin liners, manufactured from overlapping strips of high grade stainless steel to give a smooth sealed flue-way. These liners should be used with wood and multi-fuel appliances. Single skin liners must never be used with wood or multi-fuel applications.

flex liner


 

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Pumice, Concrete &clay liners

Pumice, concrete & clay liners

Clay/ceramic flue liners are manufactured from a specially selected blend of fire clays in a range of sizes in both round and square to suit the range of wood and solid fuel appliances and open fires. BS EN 1457:2012 part 1 specifies the technical requirements for clay/ceramic liners to be used in dry, non-condensing conditions.Pumice and concrete liners are certified to BS EN 1857:2010. The difference between concrete and pumice chimney products lies in the degree of pumice used in their manufacture. The Schiedel pumice liners, for example, are manufactured with 100% pumice aggregate. Cement is used to bind the aggregate with the result that the percentage of pumice in the finished product is still over 90%. Pumice is made from volcanic rock and its importance in chimney construction comes from the fact that it is a natural insulator.To form a chimney, the liners have to be surrounded with at least 100mm thick brick, block or stonework with the gap in between filled with a suitable insulating concrete mix. Clay, pumice and concrete liners can be used to reline an existing chimney. Concrete and pumice liners should not be used with condensing applications.

LINERS-CHIMNEY pumace

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Stainless Steel system chimneys

Stainless Steel system chimneys

Stainless steel system chimneys consist of two concentric stainless steel metal walls with insulation filling the annular space between them. Some systems have a ceramic liner, which can offer a longer life. Factory made system chimneys are easy to handle and available with a wide range of fittings such as elbows, terminals and tees, all of which simple lock or push together. They are easily assembled and supported with purpose designed support brackets. These products, which can be used internally and externally.

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Dm double module chimney system

Dm double module chimney system

When the ease of construction and maximum insulation matter then the Double Module System comes into its own. This chimney system is designed to be quick and easy to install.The lightweight blocks are easy to handle. The outer and inner blocks are laid at the same time but with staggered joints for safety and stability. The double layer of pumice separated by an air gap maximises the chimney insulation.The Pumice chimney systems are suitable for wood logs, solid fuel, oil and gas (not suitable for condensing appliances).

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Relining

Tubinox Starflex

Double skin multi-fuel flexible liner

Tubinox Starflex is a double skin, smooth bore stainless steel flexible multi-fuel flue liner designed for use with all solid fuel, wood, coal, gas, oil and pellet heating appliances. This range is perfect for the renovation of existing masonry chimneys with offsets. It is ideally suited for operating temperature up to 450°C and comes with a 10 year Axa backed guarantee.

In grade 316L (Starflex 2012) or 904L (Starflex HR 2010) our Tubinox Starflex is extremely robust and strong to minimise problems on site whist passing it down an existing masonry chimney. It can be supplied in 3 different packaging methods:   Cut lengths, Ecofilm coils and de-coiling box.

 

 

 

 

 

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flue liner

Liner systems for new or existing chimneys

Liner systems for new or existing chimneys

The pumice liner system comes in a range of 15 diameters from 150mm to 1000mm internal diameter. The Pumice flue liners are for masonry chimneys where the linings are surrounded by 100mm of brick, block or stone.

The linings are suitable for all fuels but not suitable for condensing appliances –including pellet or biomass.

Pumice liners are ideal for new build as well as relining existing masonry chimneys. The features of this are:

 

·    Lightweight materials, easy to use ,handle and cut

·    Highly insulating pumice for better draw and minimum heat loss

·    600mm and 1000mm lengths mean fewer joints and fast to install

·    15 flue sizes available

·    Good resistance to temperature variations gives the maximum performance for your appliance

·    CE certified to EN1857 with the designation T450, N2, D, 3, G.

·    Three angles of bends available for maximum versatility.

 

 

 

Chimney relining