FuranFlex® chimney liner material fundamentally differs from any other chimney lining material. FuranFlex® is the only method, by which chimneys of any shape, dimension and length can be lined with joint-free, airtight liner with the strength of steel. It also means not having to demolish any walls during the installation process and once cured is also resistant to flames and heat.
When fuels are burnt, they give off acidic vapour which is then condensed inside the chimney. Over time, it will damage concrete, stainless steel, the mortar between the bricks and possibly internal plaster. This is called chimney corrosion. The slots generated due to corrosion may let carbon-monoxide in the rooms, which can be fatal. In most countries across Europe it is now mandatory to provide chimneys with liners.
A composite material is the professionally defined term for a thermosetting resin with high hardness and fibre glass reinforcement. Once hardened the resin will no longer soften and due to it's properties will not melt either. Structurally it is similar to reinforced concrete.
FuranFlex® provides the hardness and corrosion-proof characteristic of steel, whereas it is five times lighter. FuranFlex black material resists heat up to 500°C, while the red one can resist heats up to 1000°C.
Until recently chimneys had been lined with either rigid or flexible stainless steel, ceramic or thermosetting concrete.
Stainless steel tubes corrode and tend to be damaged while being installed. The corrosion guarantee provided for such materials usually does not exceed 10 years. Ceramic liners can only be used for lining straight chimneys. Their heat-resistance is excellent and they are resistant to acidic effects. However, as they need to be assembled from several shorter sections, their sealing is uncertain at the joints and they could let water and acids leak through.
FuranFlex® liners are exported by Kompozitor Kft. to all countries of Europe as well as to the USA. So far, over 5 million metres of liner have been installed.
FuranFlex® has won several awards including for example Genius Europe Award and the Innovation Trophy in Paris.
FuranFlex25 Black is a Glass Fibre Reinforced Thermosetting Resin lining and is suitable different type gas fires, gas and oil heating boilers and especially high efficiency and condensing applications, ductwork, pipes and resleeving applications.
FuranFlex RWV has been specially developed to cater for Solid Fuel appliances and solid fuel open fires. FuranFlex RWV is suitable for all DFE type gas fires. FuranFlex RWV has been tested to 1000°C.
VentilFlex Green is suitable for lining and constructing air movement ducts (Ventilation and exhaust ducts)
In a chimney without lining various hazardous gases in the smoke gas may escape through cracked mortar, which can cause death. Water vapour condenses on the wall of the chimney as a liquid ( which can contain sulphuric acid, nitric acid or hydrochloric acid), which over time spoils the mortar, concrete, aluminium and in many cases even the steel creating slots on the chimney wall. The acidic steam from the smoke gases make the chimney structure corrode. This can create an unpleasant sweating that appears on the wall of the chimney which also spoils the atmosphere of therooms causing visual and material damage as well as drastically dropping the lifetime of the chimney.
The colourless and odourless carbon monoxide that escape through the slots of the chimney may not be sensed by the residents and, as a result, they may lose consciousness or even being conscious, may lose their ability to move. Even a very low concentrate (0.02 V/V%) may cause headaches, sickness and in long term exposure even brain damage, sight disorder, while any higher carbon monoxide content (0.04-0.08 V/V%) may lead to death trap after 2-3 hours and the concentrate of 1.28 V/V% would be fatal in 1-3 minutes. For more information about the signs of carbon monoxide poisoning please visit this page NHS UK Carbon Monoxide Poisoning
Yes, it does, it is resistant to the acids generated in the chimneys.
It is the end result, not the price of the two chimney liners that needs to be taken account of. FuranFlex® can be installed in one day, does not need any wall deconstruction and can be installed in chimneys with any dimension and shape. Guarantees provided by stainless steel tubes are generally 10 years, while FuranFlex® liner tubes are provided with 25 years guarantee at nearly the same price at the same time.
The process begins with a site overview. At the installation, if necessary, the chimney to be lined needs to be cleaned using an appropriate manner. This process is necessary for all chimneys. However, there is usually no need for any wall demolition during the installation of FuranFlex® liners in chimneys other than with straight design. The utmost work that may be necessary on the wall is a few centimetres of carving at the point the flue gas of the boiler used for heating is piped in as well as at the bottom of the chimney.
Lining a chimney with the FuranFlex® technology may be completed in a morning. Obviously, it will depend on the possible difficulties that may crop up during the preparations as well as on the external temperature.
There is no such thing as old chimney; there are only good or bad ones. Having been lined with FuranFlex® liner, chimneys become renewed and useful again. The hardened FuranFlex® will have the hardness of steel, which reinforces the original chimney. The technical state of the chimney always needs to be reviewed prior to installing FuranFlex® liner.
One of the several advantages of FuranFlex® is that it is available in any diameter and length from 60 to 1250 mm. With only a few exceptions, it can be applied to chimneys of any shape.
Yes, it can. For gas and oil heating generating larger amount of condensate, FuranFlex® chimney liner is recommended, while for wood heating with flue gas of higher temperature and more carbon black, it is the FuranFlex® RWV brand of liner is to be installed.
In case of heating with gas and oil, the chimney does not need to be cleaned, but it needs to be checked annually. Heating with wood, there may be tar deposits, which will need to be cleaned by chimney sweeping.