Twin Wall Flue Pipe Systems
- Made from 316-grade stainless steel
- Suitable for all fuels: solid fuel, gas, and oil
- 60mm clearance from combustibles required
- Fully welded and insulated with high-density rockwool
- CE and HETAS approved
In Stock
- Complete 5" (125mm) twin wall flue kit for two-storey installs
- Straight-up internal flue system for connection through two floors
- Includes firestop, roof support and adjustable flashing
- Storm collar and rain cap provide protection against elements
- Multiple straight flue lengths included
In Stock
- Adjustable corner support, 270-520mm
- For internal/external flue use
- 60mm clearance to combustibles
- CE & HETAS approved
- Fully insulated, no thermal bridges
In Stock
- 90 degree tee enables rear stove connection and flue cleaning
- Suitable for internal or external flue installations
- Requires only 60mm clearance from combustibles
- Fully welded and insulated with high-density rockwool
- Available in stainless steel or matt black
In Stock
- Dimensions: 850mm (L) x 550mm (W) base size
- Suitable for 36-45° pitched tiled or slate roofs
- Easy-fit pull tab design for fast installation
- CE & HETAS approved for safety and compliance
- Durable, pleat-free construction with no safety concerns
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- Helps reduce condensation by insulating flue liners
- Suitable for large open chimneys and exposed installations
- Supplied in 1 metre lengths for easy installation
- Not suitable for Class 2 flexible liners (gas and oil liners)
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- Complete kit for securing Masterflash flashings
- Includes 8 screws, drill bit & 80ml silicone
- Fits sizes No.3–No.9 (kit quantity varies)
- CE approved components
- All-in-one solution for quick, clean flashing installation
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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