Stainless steel single skin flexible liner

Charming Stoves are the proud suppliers of the Poujoulat product within the Somerset Area  Call : 01458 274 664

Tubinox Gas Flex is a single skin, stainless steel flexible flue liner designed for use with gas and oil heating appliances. This range is perfect for the renovation of existing masonry chimneys with offsets. It is ideally suited for operating temperature up to 250°C and comes with a 10 year Axa backed guarantee.

This range is the ideal solution for lining a naturally vented room-sealed gas fires, this range is not suitable for condensing application.

All of the products offered by Cheminées Poujoulat have been rigorously tested in every configuration by the CERIC Laboratory to ensure they meet highest standards (Building Regulation Document JAmendements to Approved Documents).

CE marking: 0071-CPD-0047
Designation: T250 N1 D W Vm L50010 O20

Please note a discount is available on a full system which needs to include a minimum of 3 meters of flex Call : 01458 274 664

Please see  the Poujoulat price guide 



  • Wide range of accessories i.e. Terminals, Clamp Plate, bracketeries, etc
  • Extremely flexible
  • Quick and easy to install with no mess
  • Easily meets regulation requirements




Renovation kits

Our Renovation Kits can combine the air intake as well as the smoke evacuation, utilising the existing brick stack.
diametersKIT 1: Vertical connection to the chimney
KIT 2: Horizontal connection to the chimney

Note: Other diameters up to 200mm are available on request. Allow 2 to 3 weeks for delivery.


Packaging methods:

Cut Lengths: It can be ordered in 8,10,13 & 16 metres.

Ecofilm Coils: From 52 to 36 metres coils depending flex diameter, it can be packed as 1 coil shrink wrapped on one pallet or be supplied with 2 coils on one pallet.


Technical features

Flex Ø (in mm)




Wall materialAISI 316L stainless steel – Thickness: 0.1 mm
Nb of metre per Ecofilm coil52m44m36m
Max flue gas temperature


Lining an existing stack

The existing masonry chimney itself isn’t very well adapted for the evacuation of combustion gases coming from your heating appliance. Indeed, the existing stack can be too old, too large and its tightness can’t be guaranteed. Your actual installation may cause a risk of domestic fires, condensation or bad chimney draught. It is essential, to get the best of your system chimney, using the right flexible liner, adapted, conformed and safe. You then require lining your existing masonry chimney.
The lining principle consists of introducing inside your existing stack, a stainless steel flexible liner adapted to the evacuation combustion gases.

Technical support

Our Technical team will provide you a full thermal and structural design and produce working CAD drawings, all fully compliant with British and European Standards. For any technical enquiries, please e-mail : office@charmingstoves.co.uk