Twin Wall Flue Pipe Systems

Twin wall flue pipe systems are a quick and easy way to make a chimney for your log burner or gas stove when a chimney stack is not available. Our flues are HETAS-approved and come with a 10-year warranty for total peace of mind, ensuring you have a reliable and durable solution to meet your heating needs.
Flue Liner to Twin Wall Adaptor - 8" Twinwall Flue (200mm)
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£110.00

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500mm Length - 8" Twinwall Flue (200mm)
In Stock
£105.00

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250mm-350mm Adjustable Length - 8" Twinwall Flue (200mm)
In Stock
£110.00

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Adjustable 8" 80mm-130mm Twin Wall Bracket - Black
In Stock
£65.00

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Black 130mm-210mm Adjustable Wall Support
In Stock
£70.00

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Adjustable Wall Support Bracket 210-420mm - 8" Twinwall Flue (200mm)
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£95.00

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Black Structural Locking Band
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£40.00

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Chest Mounting Plate - 8" Twinwall Flue (200mm)
In Stock
£130.00

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Joist Support Powder Coated Black 8"
In Stock
£35.00

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Ventilated Firestop Pack - 8" Twinwall Flue (200mm)
In Stock
£135.00

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Anti-Wind Cowl 6" Black
In Stock
£105.00

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Rain Cap with Mesh - 8" Twinwall Flue (200mm)
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£90.00

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Square Finishing Plate - 8" Twinwall Flue (200mm)
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£30.00

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90 Degree Bend - 8" Twinwall Flue (200mm)
In Stock
£170.00

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100mm Length - 6" Twinwall Flue (150mm)
In Stock
£39.00

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Static Anti-Downdraft Cowl - 6" Twinwall Flue (150mm)
In Stock
£129.00

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Gas Cowl - 6" Twinwall Flue (150mm)
In Stock
£89.00

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800mm Length - 6" Twinwall Flue (150mm)
In Stock
£105.00

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1000mm 6" Twin Wall Flue Pipe - Black
In Stock
£105.00

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500mm 6" Twin Wall Flue - Black
In Stock
£79.00

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Twin Wall Flues

Here you'll find a wide selection of twin wall flue parts in 5", 6", 7", 8" diameters. We stock insulated double wall flue pipes, cowls, flashing, and bends to ensure you can complete any twin wall flue system. Find both black and stainless-steel options to match your home aesthetic. If you need any help finding the right parts for your needs, take a look at our guides to twin wall flue systems and the different types of chimneys and flues.

We also offer a free twin wall flue system design service to help ensure you have a chimney system that complies with current building regulations. You can either complete our online twin-wall flue forms or send us a simple diagram with dimensions to [email protected]. A member of our HETAS-trained technical team will return a quotation to you within 24 hours with a complete breakdown of the components needed for your flue system. For more information or guidance on twin wall flue systems please read our handy FAQs below.

Frequently Asked Questions

What is a Twin Wall Flue System?

A twin wall flue system or double insulated flue is used as an alternative to a brick-built chimney. It can be fitted internally or on an outside wall. The steel walls of the flue are separated by a layer of insulation which keeps the flue gases warm and transports them safely outside. If you'd like us to design your flue system, visit our handy free flue design page.

Do I Need Planning Permission for a Twin Wall Flue?

If you live in the UK, you don’t need any prior planning permission to install a twin wall chimney flue. An exception would be if you live in a listed building. In this case, you would likely need to get permission to alter the external appearance of your home.

Does a Twin Wall System Get Hot?

A twin wall flue system has a layer of insulation so it is much less hot to touch than vitreous enamel stove pipe. Double wall flue pipes can still be hot to touch especially at the lower end of the system. Typically, the higher the flue goes the less heat there is.

Shop for twin wall flue pipes and more at StovesAreUs and get free UK mainland delivery when you spend £100 or more.

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