Chimney Safety Group

Chimney Safety Group Formed

Chimney Safety GroupOrganisations responsible for the safety and maintenance of chimneys and flues have come together to form a Chimney Safety Group to promote and offer solutions to chimney related problems in the UK.

HETAS (Heating Equipment Testing & Approvals Scheme) is joining forces with APICS (Association of Professional and Independent Chimney Sweeps), The National Association of Chimney Sweeps (NACS) and The Guild of Master Chimney Sweeps to influence legislation, organisations, government departments and standards committees.

The group will draw on the strengths of the independent organisations and will meet to deal with common safety concerns and support awareness initiatives, such as Chimney Safety Week. The unique access of chimney sweeps will be used to influence consumer safety and awareness.

The partnership of equals creates a stronger voice for educating the UK public on chimney and flue issues, with the core aim of reducing air pollution and chimney-related accidents.

Do I need my chimney lined

Do I need my chimney lined?

Liner v’s no liner

One of the most common questions asked on the HETAS Consumer Helpline is Do I need my chimney lined?

There is a regulation that says your installer must satisfy themselves that the chimney is free from defects and suitable for its intended use. When he or she checks your chimney they may find that the only way to provide you with a compliant and safe installation is to line the chimney. If there is any risk that the chimney could leak fumes in to the house they must line it with a suitable re-lining material. There are quite a few choices of system and the most popular is the flexible stainless steel type. It may be an essential part of your installation.

If any work undertaken on the chimney, including installation of a new liner, is done in conjunction with the installation of a heating appliance, then that work is a controlled service and must be undertaken by a competent person, such as a HETAS Registered Installer or approved by your Local Authority Building Control department.

Why line a chimney?

Chimneys are lined for a number of safety reasons. New chimneys may require relining to suit the fuel type being used (a gas flue liner may not be suitable for other fuels). Chimney systems that predate 1965 will often require a modern lining solution for the following reasons:

  • The flue may have lost integrity and can leak smoke into rooms or other part of the building
  • Condensates or tar can seep through chimney walls causing staining, inside or outside of the building
  • Lining with insulation included can improve the operation of the appliance and flue – particularity important when the chimney is situated on an external wall
  • Defective flue systems may be eroded and rough. Thus will cause frictional resistance to the flow of the gases resulting in poor up-draught
  • Large flues over 200mm, particularly ones containing voids, may affect appliance performance. Some appliance manufacturers specify smaller flues for efficient operation

The BFCMA has produced general guidance on the selection and installation of flues and chimneys for wood burning and multi fuel appliances in residential properties. Click here to view the guidance document. Always consult a HETAS Registered Installer prior to undertaking any solid fuel installation work.

The British Flue & Chimney Manufacturers’ Association is Britain’s only Trade Association for factory-made chimney products and works closely with Government, public bodies and other organisations to further the interest of the chimney & flue industry. Click here to find out more about the BFCMA.



Become a FuranFlex25 installer

FuranFlex25 is the unique lining technology that expands from within flues and ducts, and more and more customers are choosing this liner over other alternatives, especially in solid fuel applications, ranging from historic stately homes to residential homes and kitchen extraction. FuranFlex25’s solid fuel liner is called RWV and has an operating temperature of 450°C and is shock tested to over 1000°C

FuranFLEX25 RWV Chimney Lining System (HETAS Listed Chimney Product) is suitable for all solid fuel installations (dry applications i.e. Solid Fuels, Decorative Fuel Effect Gas Fires, Biomass Boilers) with a product designation of:

  • EN1443 – T450-N1-D-3-G (Dry Applications)

FuranFlex25 Black is suitable for all gas and oil installations (wet and dry) which require a designation of:

  • EN 14471:2005   T400 N1 G D V3 O 1 A2 LO – (Dry Applications)
  • EN 14471:2005   T200 P1 O W V1 0 1 A2 LO – (Wet Applications)

Kompozit’all UK always ensure that the correct FuranFLEX25 system has been specified/ installed for every application and then a full 25 year guarantee is issued on the full cost of replacement in case of a manufacturing fault. A technical product like FuranFlex25 needs experienced installers to put the unique 25 year guarantee into the product which is why Kompozit’All UK is searching for installers nationwide to meet increased demand.

Kompozit’All UK is the UK distributor and trainers of all FuranFlex25 and VentilFlex25 products, with over 5 years of experience with the product and responsible for over 5,000 installations and feel the best way to protect customers and end-users, is to provide the most comprehensive training and technical support to all our installation partners.

All who have chosen this liner as the premium option have cited many of the benefits listed below with one customer saying “I may have paid more for this product than the other alternatives, but I feel it is worth it for the extra security and the lower life-time cost”

Reasons Customers choose FuranFlex25:

  • All installers are annually re-certified
  • Quick clean Installation speed
  • Full 25 year guarantee
  • Least destructive installation process (rarely a need to ‘break through)
  • 24 hour promise (to return to installation if failure reported)
  • Installations Underwritten by Insurance group ARK

To register interest in becoming an installer or for more product information and to view case studies, please visit Alternatively call Andrew on 07772 118400 or David on 07565 583456

The HETAS installation competence for the Furanflex25 chimney lining system is “Install a specialist flue lining system”.

If you have taken the appropriate training to install these systems, please contact HETAS with the details, to enable us to add that to your registration. Once you have the competence assigned, you will be able to notify an installation through HETAS and your customer can have a HETAS certificate of compliance. Please refer to the Official Guide to HETAS Approved Products & Services for listings of factory made chimneys and chimney lining systems, including:

Specialist flue lining systems

  • Part 2 Type G – non-metallic chimney relining systems –typically using a special formulation of ceramic or concrete based materials
  • Part 2 Type J – cast in-situ concrete relining systems – using an inflatable rubber former.

Non-metallic block or sectional liners

  • Part 2 Type B – chimney block systems (concrete, pumice or clay)
  • Part 2 Type D – flue liners for relining (fire clay, ceramic, pumice or refractory concrete) – usually with spigot and socket joints.