6" Ultraflex 904/904 Flexible Flue Liner
6" FlexiFlue liner is constructed from 904 inner and 904 outer Stainless steel, that carries a lifetime warranty (warranty valid for as long as you own the property)
Uses for 904 Grade Chimney Liner
This product is widely used by the trade when lining chimneys. The 904/904 grade is capable of burning wood, gas, oil, low sulphur coal, Coal, Coke, Peat and Smokeless fuels
For 316/316 & 316/904 grade liners, see our 6 inch flue liners page
Our 904/904 flue liner 6 inch diameter is constructed from 904 grade inner and 904 grade outer Stainless steel, that includes a lifetime warranty*
904/904 grade liner is suitable for use with :
● seasoned / kiln dried wood
● low sulphur coal
● peat smokeless fuel
With a smooth inner liner and corrugated external, our flexible flue liner is approved by Hetas and
has British Standard to BS - EN1856 (Conforms to Building Regulations in UK)
All of our flexi liners are manufactured in the UK.
For custom kits, see our 904 grade flue liner kits
|Designation||BS EN 1856-2 T450 P2 D VmL500-24 G|
|Inner Material:||904L - 0.12mm|
|Outer Material:||904L - 0.12mm|
|Fuels:||Seasoned Dried Wood, Gas, Oil, Coke, Peat and Smokeless fuels|
|Notice:||*We DO NOT accept returns on flexible flue liner as they are bespoke items|
Internal Diameter - 150mm
External Diameter - 156mm
The liner is used to re-line your existing chimney, the liner should always be fitted from the top ,Before you start secure the NOSE cone (order separately) onto the end of the liner making sure the arrows on the liner are pointing away from the nose cone in a upward direction so when the liner is installed the arrows will be pointing to the top of the chimney, pull the liner down the chimney using a draw string which isn't supplied with the Nose cone at the same time have someone at the top of the chimney feeding the liner down, once the liner is fitted remove the nose cone.
Please Note : The Person at the top of the Chimney Should Be the One Pushing The Liner Down the Chimney with the Person on the Draw String Helping to Guide The Liner Around any Obstacles EG : Bricks in the Chimney)
Quality Flexible 904/904 Grade Flue Liner : Ultraflex : Made in the UK
We recommend that all installations are carried out by a qualified chimney installer.
additional information on installation and requirements can be found below.