Twin Wall Flue Pipe Systems
- Dimensions: 292mm x 292mm
- Maintains safe clearance between flue and combustibles
- Requires 60mm clearance from combustibles
- CE and HETAS approved
- Available in stainless steel or matt black with cover plate option
In Stock
- Adjustable length: 470–605mm
- Connects directly to heating appliance, no adapter needed
- 60mm clearance to combustibles
- CE & HETAS approved with 10-year warranty
- Fully welded, insulated with high-density rockwool
In Stock
- 135 degree tee with cap allows flue access for sweeping and inspection
- Suitable for internal or external use in flue systems
- Requires only 60mm clearance from combustibles
- Fully welded and insulated with high-density rockwool
- Available in stainless steel or matt black
In Stock
- Adjustable wall support from 210mm to 420mm
- Provides lateral stability every 2.5m of flue system
- Suitable for solid fuel, gas, and oil appliances
- CE and HETAS approved for safe installation
- Available in stainless steel or matt black finish
In Stock
- Adjustable wall support from 130mm to 200mm
- Provides lateral support for twin wall flue systems
- Suitable for solid fuel, gas, and oil appliances
- CE and HETAS approved for compliant installation
- Available in stainless steel or matt black finish
In Stock
- High temperature resistance up to 300°C
- One-part, ready-to-use silicone sealant
- Cures with atmospheric moisture for strong bond
- Forms a flexible, highly elastic silicone rubber
- Ideal for sealing in heat-exposed flue installations
In Stock
- Provides stability for flue passing through loft spaces
- Can be used with firestop plates on joists
- Requires only 60mm clearance from combustibles
- CE and HETAS approved for safety compliance
- Available in stainless steel or matt black
In Stock
- Dimensions: 450mm (L) x 450mm (W) base size
- Suitable for 25–35° pitched tiled or slate roofs
- Pull tab design for easy, accurate sizing
- CE & HETAS approved for certified safety
- Durable, pleat-free construction with no safety concerns
In Stock
- Connects flexible flue liner to twin wall chimney system
- For use with solid fuel, gas, or oil appliances
- CE and Hetas approved for safe, compliant installation
- Fully insulated with high-density rockwool for efficiency
- Requires only 60mm clearance from combustibles
In Stock
PayPal Credit Example of a £500 purchase
Instalments
6 Months (over £99)
- Minimum Spend: £99
- Monthly Instalment: £86.87
- Instalment Rate: 14.9% APR
- Cost of Purchase: £500.00
- Total inc. Interest: £520.57
12 Months (over £99)
- Minimum Spend: £99
- Monthly Instalment: £44.89
- Instalment Rate: 14.9% APR
- Cost of Purchase: £500.00
- Total inc. Interest: £538.64
24 Months (over £199)
- Minimum Spend: £199
- Monthly Instalment: £24.00
- Instalment Rate: 14.9% APR
- Cost of Purchase: £500.00
- Total inc. Interest: £575.98
36 Months (over £499)
- Minimum Spend: £499
- Monthly Instalment: £17.09
- Instalment Rate: 14.9% APR
- Cost of Purchase: £500.00
- Total inc. Interest: £614.93
0% for 4 Months
4 Months (over £99)
- Minimum Spend: Over £99
- Monthly Instalment: min monthly payment
- Instalment Rate: 0% APR
- Cost of Purchase: £500.00
- Total inc. Interest: £500.00
Representative Example
Purchase rate: 23.9% p.a. (variable)Representative: 23.9% APR (variable)
Assumed Credit Limit: £1,200
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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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