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.
6" 45 Degree Elbow - Twin Wall Flue
In Stock
£69.00

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HETAS Approved
Warranty Lifetime
135 Degree Long Tee & Cap 6" - Black
In Stock
£359.00

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Adjustable 45 Degree Bend Starter Length 450-575mm - 6" Twinwall Flue (150mm)
In Stock
£229.00

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Adjustable Starter Length 470-605mm - 6" Twinwall Flue (150mm)
In Stock
£149.00

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Adjustable Corner Support Bracket 270-520mm - 6" Twinwall Flue (150mm)
In Stock
£89.00

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Roof Brace Kit - 6" Twinwall Flue (150mm)
In Stock
£65.00

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Roof Brace Kit - 7" Twinwall Flue (175mm)
In Stock
£69.00

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Roof Brace Kit - 8" Twinwall Flue (200mm)
In Stock
£70.00

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6" 135 Degree Tee Powder Coated Black
In Stock
£209.00

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Black 250mm - 350mm Adjustable Twin Wall
In Stock
£79.00

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90 Degree Tee & Cap - 6" Twinwall Flue (150mm)
In Stock
£169.00

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15 Degree Bend - 6" Twinwall Flue (150mm)
In Stock
£69.00

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HETAS Approved
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30 Degree Elbow - Black Twin Wall Flue
In Stock
£69.00

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Adjustable Base Support 6"
In Stock
£149.00

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6" Powder Coated Twin Wall Rain Cap
In Stock
£59.00

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HETAS Approved
Warranty Lifetime
Matt Black 500mm Twin Wall Length
In Stock
£69.00

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Heat Resistant Silicone Cartridge - Black - 310ml
£19.95

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Draft Booster Chimney Fan
In Stock
£595.00

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350mm-500mm 6" Adjustable Twin Wall Flue - Black
In Stock
£99.00

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HETAS Approved
Warranty Lifetime
Long Adjustable Twin Wall Flue Pipe - Black
In Stock
£129.00

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Estimated 3-5 Day Delivery Estimated 3-5 Day Delivery
HETAS Approved
Warranty Lifetime

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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