25 Year Warranty

All Weather Cowl – Twin Wall Pipe 150mm (Black)

Name: All Weather Cowl - Twin Wall Pipe 150mm (Black)
SKU: TTWI-BSHI-LBLK-D150-CAWC
Price: 87.95 GBP
Availability: InStock

£87.95 Inc VAT

HETAS approved, black and Stainless Twin Wall flue components and associated parts for creating new internal and external flue systems.

Available in 125mm-200mm internal diameters, all insulated parts feature a 25mm layer of Rockwool insulation, creating a 50mm greater outer diameter and come supplied with a Locking Band where applicable.

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1. Pipe and elbow diameters

With twin wall flue pipe, the internal and external diameters are different. This is because they have 1 inch of insulation surrounding the inner pipe that makes the outer pipe 2 inches larger than the inner pipe. The diameters referred to always relate to the INTERNAL diameter of the pipes it is this diameter that is important when connecting your flue pipe to a stove.

2. Brackets and finishing plates

Due to the reasons above all brackets and plates that are cut to fit twin wall pipe will actually measure 2 inches more than their stated diameter.

Stated Diameter	I = Internal Diamater	E = External Diameter	Brackets & plate Diameter
100mm (4″)	100mm	150mm	150mm
125mm (5″)	125mm	175mm	175mm
150mm (6″)	150mm	200mm	200mm
175mm (7″)	175mm	225mm	225mm
200mm (8″)	200mm	250mm	250mm

Other useful information regarding twin wall flue systems

Your flue system (internal diameter) must never be less than the flue collar diameter on your stove and the stated flue requirements of that stove.
You can increase but never decrease the diameter of your flue system.
For that reason we do not sell reducers or decreasing components.
You should have a maximum of 4 elbows in your system.
The maximum angle of a bend permitted is 45 degrees other than coming straight out the back of your stove.
You should aim for an overall height of at least 4.5 meters from the top of your stove for the flue to work well.
The outlet or terminal of your flue system needs to finish at least 1000mm above your roof or 2,300mm horizontally from your roof, or 600mm above the ridge of your roof, whichever comes first.
Need help planning your system? Call us on 01376 315 760 to speak to our HETAS approved team of specialists who can plan your building regulation compliant system with you.

Description
Additional information

All Weather Cowl – Twin Walled Pipe

Push-fit All Weather Cowl for ultimate protection against the elements for a twin wall flue system. Featuring extra protection around the terminal, this Cowl is ideally suited to flue systems in exposed areas or waterfronts or suffer from wind channelled across the flue.

Please note, this item is not advised for flue systems under 4m in length due to potential impact on the draw. Similarly, no terminal is designed to be 100% water-tight as this would impact the draw of the stove.

Also available in Open-Sided and Meshed versions.

Available in Stainless and black finishes, for 125mm-200mm internal diameters.

Please note – As with all twin wall parts the diameter quoted is the internal diameter – The external diameter is 2 inches larger due to the surrounding insulation.

Designation number T450-N1-D-Vm-L50050-G60

Finish: Black
Internal Diameter: 150mm
External Diameter: 200mm
Height: 350mm
Insulated: Yes
Locking Band Supplied:Yes
Warranty: 12yrs
Grade: 316

Additional information

Colour	Black
Flue Diameter	150mm
Flue Parts	Cowl/Terminal
Terminal Type	Rain cap, Bird guard, Anti downdraught
To Fit	Twin wall pipe

All Weather Cowl – Twin Wall Pipe 150mm (Black)

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