System Cascade

Cascade Boilers Designated: Type B22, B22p, B23 & B23p

‘System Cascade’ is a standard single wall flue header kit that’s designed to fit on all boiler manufacturers ranges of cascade boilers designated as suitable for the boiler / flue configurations: Type B22, B22p and / or B23, B23p.

All kits are compatible with the Poujoulat single wall flue or Poujoulat twin wall insulated flue to connect the header kit to the chimney riser.

It is available in 7 diameters (Ø130, Ø150, Ø180, Ø200, Ø250 & Ø300, & Ø350).

The branch connection diameter is Ø110mm (Ø130mm branch with non-return valve available on request)











Product details

>Quality: Production is performed under quality control of CERIC (research and testing centre for the chimney and flue industry). Exceptional high resistance to corrosion.

> Performance: The Poujoulat cone on cone patented Condensor joint provides a 50mm depth engagement, giving an excellent performance of P1 level at 200 Pa.

Safety: Easy fixing locking band with safety closing ring pin with all components.

> Easy to maintain: Full range of accessories. Lengths with inspection door available.

> Innovation: Reducing tees, drain sections, increasers provide wide varying and flexible solutions to multiple boiler and cascade systems.

> Aesthetic: Exceptionally good looking chimney and terminal with integrated support bracketry plus excellent flashing/weather plate arrangements, to suit all roof types.




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 - Amendments to Approved Documents).


Technical data

> Max. Temperature limitation: 250°C
> CE marking: 0071-CPR-0014

Ø80 to Ø150 T250 N1 W V2 L50 040 O50 T200 P1 W V2 L50 040 O50 (with joint seals)
Ø180 to Ø350 T250 N1 W V2 L50 060 O50 T200 P1 W V2 L50 060 O60 (with joint seals)

Reducing Tees
The tee branch to branch centres are adjustable
from 480 mm to 580 mm
The centres can be further extended with the addition of another length(s).


Installation & regulation



We develop the product and apply it to your project.

We provide a full thermal and structural design, with working drawings, fully compliant to British and European Standards.

We produce Clean Air Act calculations and ADMS4 dispersion modelling.

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