5-Inch Twin Wall Flue


- Supports flue systems extending 1.5m beyond last structural support
- Allows guy wire installation at 120° intervals for stability
- Optional 30m guy wire pack available for added bracing
- CE and HETAS approved for safety and compliance
- Available in stainless steel or matt black finish
In Stock





- Prevents water ingress around roof flashing for weatherproof seal
- 10-year warranty for long-lasting protection
- CE & HETAS approved for safety and compliance
- Quick to install with individually boxed components
- Available in stainless steel or matt black finish
In Stock




- Supports up to 20m of twin wall flue for tall installations
- Adjustable from 50mm-80mm for flexible positioning
- Suitable for solid fuel, gas, and oil appliances
- CE & HETAS approved for safety and compliance
- Available in stainless steel or matt black finish
In Stock









- Temperature resistant from -74°C to 260°C for reliable performance
- Suitable for profiled sheeting and flat panel surfaces
- Clean, pleat-free silicone design for a neat finish
- CE & HETAS certified for quality and safety
- Optional fixing kit includes screws, drill bit, and silicone sealant
In Stock





- Adjustable from 50mm to 80mm for flexible wall support
- Suitable for 5" twin wall flue with 125mm internal diameter
- Made from durable 316 grade stainless steel
- Approved for use with solid fuel, gas, and oil appliances
- CE and Hetas certified for safety and compliance
In Stock




- Handles temperatures from -50°C to 135°C for weather resistance
- EPDM flashing for profiled or flat panel roof surfaces
- Clean, pleat-free design for a neat finish
- CE & Hetas approved for compliance and safety
- Optional fixing kit with screws, drill bit, and silicone
In Stock




- Dimensions: 900mm (H) x 350mm (W) mesh panels (x4)
- Meets building regulations for flue enclosure in loft areas
- Prevents combustible materials from contacting the chimney
- Includes fixing clips, joist support, and top clamp for easy install
- CE & HETAS approved for safety and compliance
In Stock






PayPal Credit Example of a £500 purchase
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
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 5-Inch Flue
A 5-inch twin wall flue kit from this range can be used when there is no constructed chimney available. They are often used in period or new build properties without chimneys, as well as in conversions and renovations where the chimney stack has been removed or the stoves desired position is not where the chimney is located.
In this range, you’ll find a choice of 5-inch twin wall flue pipes in black, the perfect versatile colour for completing your set up. On top of this, there are twin wall insulated flue components to suit most requirements in this range, whether it be long, short, or adjustable lengths, or 15-, 30- or 45-degree angled bends.
Frequently Asked Questions
What is the distance to combustible material for a 5" twin wall flue?Every piece of twin wall flue in our collection has been tested rigorously and can be installed within 60mm of non-combustible material. This is a great advantage when fitting a flue system in a loft space or past ceiling joists as it means your system can be positioned relatively close to the timber work.
What is the outside diameter of a 5" twin wall flue pipe?The outside diameter of a 5" twin wall flue system measures 7" (175mm). The inner and outer steel skin of our twin wall flue pipe is packed with high-quality insulation which keeps the flue gases warm for a great draught and also ensures the flue can be installed within 60mm of combustible materials.
Can I install a twin wall flue system myself?Installing a twin wall flue system is a considerable task and may involve equipment like tall ladders or scaffolding if access to your roof is required. Connecting sections of twin wall flue pipe is technically very straightforward and specialist skills are not required, you'll still need to ensure that you follow building regulations for your own safety.
Buy a 5-inch twin wall flue pipe or kit from StovesAreUs today. And make sure to browse our wider range of chimney essentials for flexible flue liners, chimney cowls, and more.