STI Chimney Stack


Self supported Therminox chimney stack designated as suitable for use with all gas, oil, pellet and wood appliances.

STI Chimney Stack Kits from £312.00 + vat. 

Please call for our best trade prices and other kit options and fittings.

Product Images (Select an image to enlarge)

Product Description

The STI Chimney Stack is an innovative evolution of the standard Therminox chimney termination using modern engineering design principles, combined with « a state of the art» manufacturing process. This innovative system optimise your working process, you can now install several chimneys through the roof in one day.

Available as standard in 2 finishes (Black & Copper Brown), our STI Chimney Stack is CE marked and designated as suitable for use with all gas, oil, pellet and wood burning appliances. Complete with a comprehensive range of standard accessories to suit all applications. It is ideally suited for operating temperature up to 450°C and comes with a 10 year Axa backed guarantee.

The STI Chimney Stack comes with our engineered Poujoulat flashing system, very easy to position in place of 4 or 6 tiles and delivers a perfect seal to the roof; self-levelling chimney can be installed on the roof first.

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 J – Amendements to Approved Documents).

CE marking: 0071-CPD-001

Max. Temperature limitation:
– Soot fire tested at 1000°C
– Operating temperature 450°C
– 4 hours fire rated to BS 476-20

Insulation: High pressure injected mineral wool 30mm thick.




You may also like…

  • Therminox TI – ZI

    Mult-fuel twin wall insulated chimney system, Gas, Oil, Pellet and Wood burning appliances. Therminox TI - 950mm length, 150mm diameter, £83.68 + vat each - For external use Therminox ZI - 950mm length, 150mm diameter, £66.95 + vat each - Only suitable for internal use.  Please call for our
    Read More
  • Tubinox Starflex

    Flexi Flue Liner
    316L and 904L Stainless Steel, Double Skin, Multi-Fuel Flexible Liner. Ideal for the renovation of existing masonry chimneys with offsets. Starflex 316 - Prices start from £13.73 + vat per metre (125 mm) Starflex 904 - Prices start from £23.34 + vat per metre (125 mm).  Please call for our
    Read More
  • Enamel Premium Connecting Pipe

    Enamelled connecting flue pipe for wood burning appliances. Available in 5 colour finishes (Matt black, Matt grey, Gloss white, Gloss brown and Gloss black). This range is seem welded with a high quality enamel coating, with a minimum of two coats which provides the best aesthetic appearance. Exa
    Read More

Latest twitter