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All-Weather Cowl 6" Twinwall

currently out of stock.


Inner Diameter 150mm, external diameter 210mm.

Our superior stainless steel insulated twinwall flue system for use with solid fuel appliances. DWX has the strongest interlocking joint system on the market today, making it popular with top installers who need to rely on a quality system every time.

Select your required parts and add to your cart, or alternatively use our FREE TWINWALL QUOTATION SERVICE and we will select all of the required parts to suit your system.

Note: a locking band is required at each joint in the twinwall system.

Main Features

Simple, easy push-fit system
HETAS Approved
High mechanical resistance to vertical and horizontal forces
60mm clearance to combustibles
No thermal bridge, insulation continuity throughout the system
Thermal expansion absorbed in each element
High working temeprature: 600C under continuous operation


Solid fuel appliances, wood and multifuel stoves
Biomass boilers
Domestic heating and hot water systems
Hot air generators
Bakery ovens
Ventilation and smoke extraction
Industrial / commercial heating


Inner wall: 316L Stainless Steel
Outer wall: 304 Stainless Steel
Insulation: 30mm Rockwool

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