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The guaranteed chimney restoration solution is a revolutionary new chimney lining system specifically engineered to tackle a number of chimney related problems.

FuranFlex chimney lining is perfect for commercial or domestic condensing boiler flues, gas fires, oil heating flues and can even be used for solid fuel chimney lining.

Because not all chimneys are the same shape or design and sometimes traditional lining methods cannot achieve a suitable uniform integrity. FuranFlex has been developed to mould to the shape and run of the flue and can also be installed in any diameter and any length without joints in the lining making it completely gas tight.

This award winning FuranFlex technology is made from a glass fibre reinforced thermosetting resin composite. This means when installed FuranFlex liners are as strong as steel and also resists corrosion better than steel chimney liners.

Advantages of FuranFlex

FuranFlex is suitable for gas fires and oil heating chimneys, condensing boiler flues and solid fuels including biomass applications.It can be installed without any demolition being necessary and can improve boiler efficiency and reduces gas consumption. It can be used in any length chimney without the need for joints and complies with the route of chimneys that are not straight

Installing FuranFlex

The Furanflex liner comes deflated and has to be inserted into the flue before being inflated to the flue size. Once the liner is in place the steam generator is then attached and the heating process begins.

Once hardened, the FuranFlex liner is as strong as steel liners and provides a perfect gas tight chimney lining ready to use.

The installation process of FuranFlex is very clean and non intrusive but requires specialist skill and training. Please follow the link below to watch an installation.

FuranFlex Technical Specifications:

  • Fuel gas and oil, wood and pellets
  • Operating temperature in flue gases >450 °C
  • Cold resistance -50 °C
  • Wall thickness 2-2,5 mm
  • Diameter 50-1000 mm (optional within this range)
  • Length (optional) 3-81 m (minimum and maximum length installed so far)
  • Corrosion resistance Very good for acids pH 1-7, Good in respect of pH 7 - max. 12
  • Density 1,5 g/cm3
  • Tensile strength 100-150 N/mm2
  • Thermal conductivity 0,4 W/m K
  • Coefficient of thermal expansion 2,4 x 10-5 m/m K
  • Angle of distortion 30° max.
  • Flame resistance at 1000 °C 10 minutes
  • EU classification (EN-14471) T250 P1 W3 R1 050 E

Techreline stand ready to assist with your FuranFlex requirements in London, Kent, Surrey, Essex, Suffolk, East & West Sussex, Northamptonshire, Cambridgeshire, Berkshire, Oxfordshire, Warwickshire,  as well as larger commercial and industrial applications in Hampshire, Buckinghamshire, Bedfordshire, Gloucestershire, Hertfordshire, Wiltshire and beyond.

For further information on the FuranFlex technology or to arrange your on-site survey call us today on 0800 015 4636.