5 Inch (125mm) Silver Twin Wall Flue

  1. Dura Flue 30-Degree Elbow Bend in Stainless Steel - 125mm

    Key Features:

    • > Material: 316 Grade Steel
    • > Brand: Dura Flue
    • > Use: Used to create a bend of 30 degrees in a twin wall insulated flue system.
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    Special Price £77.26 Regular Price £97.00
    • In Stock
  2. Dura Flue 45-Degree Elbow Bend in Stainless Steel - 125mm

    Key Features:

    • > Material: 316 Grade Steel
    • > Brand: Dura Flue
    • > Use: Used to create a bend of 45 degrees in a twin wall insulated flue system.
    Learn More
    Special Price £80.09 Regular Price £100.00
    • In Stock
  3. Dura Flue Guy Wire Bracket in Stainless Steel - 125mm

    Key Features:

    • > Material: 316 Grade Steel
    • > Brand: Dura Flue
    • > Use: Used to provide support to external flue pipe which can not be supported via wall brackets.
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    Special Price £80.35 Regular Price £100.00
    • In Stock | 48 Hour Delivery
  4. Dura Flue 1000mm Twin Wall Pipe In Stainless Steel - 125mm

    Key Features:

    • > Material: 316 Grade Steel
    • > Brand: Dura Flue
    • > Use: Used to extend the height of a twinwall inuslated flue system.
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    Special Price £102.93 Regular Price £129.00
    • In Stock | 48 Hour Delivery
  5. Dura Flue Adjustable 380mm - 585mm Twin Wall Pipe In Stainless Steel (125mm)

    Key Features:

    • > Material: 316 Grade Steel
    • > Brand: Dura Flue
    • > Use: Used to adjust the height of a twinwall inuslated flue system.
    Learn More
    Special Price £103.21 Regular Price £129.00
    • In Stock | 48 Hour Delivery
  6. Dura Flue 90 Degree Tee Piece in Stainless Steel - 125mm

    Key Features:

    • > Material: 316 Grade Steel
    • > Brand: Dura Flue
    • > Use: Used to adjust the height of a twinwall inuslated flue system.
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    Special Price £118.95 Regular Price £149.00
    • In Stock | 48 Hour Delivery
  7. 5-Inch 800mm Stainless Steel Twin Wall Flue Length

    Key Features:

    • Flue Diameter: 5-Inch (125mm)
    • Inner Diameter: 130mm
    • Outer Diameter: 190mm

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    £125.18
    • In Stock | 48 Hour Delivery
  8. Dura Flue Corner Wall Support in Stainless Steel - 125mm

    Key Features:

    • Flue Diameter: 5-Inch (125mm)
    • Overall Height: 50mm
    • Length - Wall to Pipe: 300mm - 350mm

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    £128.52
    • In Stock | 48 Hour Delivery
  9. Dura Flue Base Support Unit With Brackets In Stainless Steel - 125mm

    Key Features:

    • > Material: 316 Grade Steel
    • > Brand: Dura Flue
    • > Use: Used to provide support to external flue pipe at the bottom of the chimney.
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    Special Price £128.91 Regular Price £161.00
    • In Stock | 48 Hour Delivery
  10. Special Price £131.01 Regular Price £164.00
    • In Stock | 48 Hour Delivery
  11. Dura Flue Adjustable 590mm - 1005mm Twin Wall Pipe in Stainless Steel - 125mm

    Key Features:

    • > Material: 316 Grade Steel
    • > Brand: Dura Flue
    • > Use: Used to adjust the height of a twinwall inuslated flue system.
    Learn More
    Special Price £135.26 Regular Price £169.00
    • In Stock | 48 Hour Delivery
  12. Dura Flue 1000mm Starter Length In Stainless Steel With Built In Adaptor - 125mm

    Key Features:

    • Flue Diameter: 5-Inch (125mm)
    • Inner Diameter: 133mm
    • Outer Diameter: 190mm

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    Special Price £142.96 Regular Price £179.00
    • In Stock | 48 Hour Delivery
  13. Dura Flue 45-Degree Adjustable Wall Sleeve in Stainless Steel - 125mm

    Key Features:

    • > Material: 316 Grade Steel
    • > Brand: Dura Flue
    • > Use: Used to protect the flue pipe as it passes through the wall.
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    £151.17
    • In Stock | 48 Hour Delivery
  14. Special Price £159.73 Regular Price £200.00
    • In Stock | 48 Hour Delivery
  15. Dura Flue 35 Degree Tee Piece in Stainless Steel - 125mm

    Key Features:

    • > Material: 316 Grade Steel
    • > Brand: Dura Flue
    • > Use: Used to adjust the height of a twinwall inuslated flue system.
    Learn More
    Special Price £171.03 Regular Price £214.00
    • In Stock | 48 Hour Delivery
  16. Dura Flue 135 Degree Pre Longed Tee Piece in Stainless Steel - 125mm

    Key Features:

    • > Material: 316 Grade Steel
    • > Brand: Dura Flue
    • > Use: Used to adjust the height of a twin wall insulated flue system.
    Learn More
    Special Price £185.64 Regular Price £232.00
    • In Stock | 48 Hour Delivery
  17. Dura Flue 1.5m - 2.5m Telescopic Support Kit in Stainless Steel - 2 Pieces

    Key Features:

    • Overall Height: 1.5m - 2.5m
    • Distance to Combustibles - Sides: e
    • Maximum Distance Between Two wall Brackets: Tested Max: 4m (Recommended: 2m)

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    £210.42
    • In Stock | 48 Hour Delivery
  18. Dura Flue Ventilated Firestop Support Set in Stainless Steel - 125mm

    Key Features:

    • Flue Diameter: 5-Inch (125mm)
    • Overall Width: 440mm
    • Overall Width New Filter: 401mm to 450mm

    Learn More
    £215.46
    • In Stock | 48 Hour Delivery

5 Inch Twin Wall Flue Systems

Our 5 inch twin wall flue systems allow you to install a stove safely in properties without an existing chimney. The double-walled design ensures exhaust gases are expelled efficiently while keeping the outer surface cooler, making them suitable for both single and multi-storey installations.

Why Do You Need a 5 Inch Twin Wall Flue?

  • Safe operation – double insulation protects against high surface temperatures
  • Compliance – designed to meet UK building regulations for stoves without a chimney
  • Flexible installation – works for straight or angled flue runs, including multi-storey setups
  • Durable materials – crafted from high-quality stainless steel for long-lasting performance

Components and Accessories

Alongside the 5 inch flue pipes, we stock all the parts you need to complete your installation:

  • Adaptors, bends, and T-pieces
  • Locking bands, brackets, and finishing plates
  • Top caps and rain cowls for protection and draft control

Before You Choose

5 inch twin wall flues are primarily required for homes without a chimney or where your stove will be outside an existing flue. Check your stove type, property layout, and local building regulations. Professional installation by a HETAS-qualified engineer is strongly recommended.

Explore Our Range

Browse our 5 inch twin wall flue pipes and accessories to find everything needed for a compliant, safe installation. For guidance, see our stove installation guide or contact our HETAS-trained team on 0161 376 4191.

Visit our Showrooms

Explore our full range of wood burning stoves, BBQs, grills and outdoor heating at our showrooms.

Cheadle

Stanley Green Retail Park, 
Earl Rd, Cheadle
SK8 6PT

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Stockport

137 Wellington Road North
Stockport, Cheshire
SK4 2PF

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Bromsgrove

15 Sherwood Rd
Bromsgrove
B60 3DR

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Package includes: 

Woodford Carrington 5 Multifuel Stove (Ideal Home Award winner), Flue liner Pack (flue liner, adapter, chimney cap), Fitting Kit (stove pipe, register plate, carbon monoxide detector) Full Installation (by a HETAS registered installer)