1. 130mm - 210mm Twin Wall Flat Adjustable Wall Support in Stainless Steel - 150mm

    Key Features:

    Used to connect twin wall flue pipe to the wall. The bracket can be placed anywhere on a length of pipe, except for on the joints. The support allows the pipe to be fitted 130mm - 210mm away from the wall. Learn More
    Special Price £66.64 Regular Price £86.63
    • In Stock | 48 Hour Delivery
  2. Twin Wall Fire Stop Plate in Stainless Steel - 150mm

    Key Features:

    A fire stop plate is used where the flue passes through a ceiling or floor to stop the spread of fire between rooms. Learn More
    Special Price £67.13 Regular Price £87.27
    • In Stock | 48 Hour Delivery
  3. Twin Wall Conical Adaptor (125mm) in Matt Black - 150mm

    Key Features:

    A conical adaptor used to connect a 125mm appliance outlet to twin wall insulated flue pipe. Supplied with a locking band. Learn More
    Special Price £67.29 Regular Price £87.48
    • In Stock | 48 Hour Delivery
  4. Twin Wall Firestop Masking Plate in Matt Black - 125mm

    Key Features:

    A masking plate used to give a neat finish to the underside of a fire stop plate. Learn More
    Special Price £67.30 Regular Price £87.49
    • In Stock | 48 Hour Delivery
  5. 45 Degree Twin Wall Elbow Bend in Stainless Steel - 125mm

    Key Features:

    Used to create a bend of 45 degrees in a twin wall insulated flue system. Supplied with a locking band. Learn More
    Special Price £67.31 Regular Price £87.50
    • In Stock | 48 Hour Delivery
  6. 125mm Flex Liner (Below) to 150mm Twin Wall Adaptor in Stainless Steel - 150mm

    Key Features:

    Used to connect a 125mm flexible flue liner (below) to 150mm twin wall insulated flue pipe (above). Supplied with a locking band. Learn More
    Special Price £67.69 Regular Price £88.00
    • In Stock | 48 Hour Delivery
  7. 125mm Twin Wall (Below) to 150mm Flex Liner Adaptor in Stainless Steel - 125mm

    Key Features:

    Used to connect 125mm twin wall insulated flue pipe (below) to a 150mm flexible flue liner (above). Supplied with a locking band. Learn More
    Special Price £67.76 Regular Price £88.09
    • In Stock | 48 Hour Delivery
  8. 225mm - 385mm Twin Wall Flat Adjustable Wall Support in Stainless Steel - 125mm

    Key Features:

    Used to connect twin wall flue pipe to the wall. The bracket can be placed anywhere on a length of pipe, except for on the joints. The support allows the pipe to be fitted 225mm - 385mm away from the wall. Learn More
    Special Price £68.20 Regular Price £88.66
    • In Stock | 48 Hour Delivery
  9. 15 Degree Twin Wall Elbow Bend in Stainless Steel - 125mm

    Key Features:

    Used to create a bend of 15 degrees in a twin wall insulated flue system. Supplied with a locking band. Learn More
    Special Price £68.28 Regular Price £88.76
    • In Stock | 48 Hour Delivery
  10. Twin Wall Weathering Cap in Matt Black - 125mm

    Key Features:

    A weathering cap is used at the end of a flue system it helps to prevent down draught and rain entering the flue system. Supplied with a locking band. Learn More
    Special Price £68.65 Regular Price £89.24
    • In Stock | 48 Hour Delivery
  11. 500mm Twin Wall Flue Pipe in Stainless Steel - 125mm

    Key Features:

    This 500mm twin wall insulated flue pipe is used to extend the height of a flue system by 500mm. Supplied with a locking band. Learn More
    Special Price £68.95 Regular Price £89.64
    • In Stock | 48 Hour Delivery
  12. 130mm - 210mm Twin Wall Flat Adjustable Wall Support in Stainless Steel - 175mm

    Key Features:

    Used to connect twin wall flue pipe to the wall. The bracket can be placed anywhere on a length of pipe, except for on the joints. The support allows the pipe to be fitted 130mm - 210mm away from the wall. Learn More
    Special Price £69.62 Regular Price £90.51
    • In Stock | 48 Hour Delivery
  13. Twin Wall Rain Cap in Matt Black - 125mm

    Key Features:

    A rain cap is used at the end of a flue system it helps to prevent rain entering the flue system. Supplied with a locking band. Learn More
    Special Price £69.71 Regular Price £90.62
    • In Stock | 48 Hour Delivery
  14. Twin Wall Soot Collector with Drain in Stainless Steel - 200mm

    Key Features:

    Our Soot Collector with Drain is used in conjunction with the T-pieces to close off the flue system and provides a drain point. Learn More
    Special Price £69.82 Regular Price £90.77
    • In Stock | 48 Hour Delivery
  15. 30 Degree Twin Wall Elbow Bend in Stainless Steel - 125mm

    Key Features:

    Used to create a bend of 30 degrees in a twin wall insulated flue system. Supplied with a locking band. Learn More
    Special Price £69.86 Regular Price £90.82
    • In Stock | 48 Hour Delivery
  16. 225mm - 385mm Twin Wall Flat Adjustable Wall Support in Stainless Steel - 150mm

    Key Features:

    Used to connect twin wall flue pipe to the wall. The bracket can be placed anywhere on a length of pipe, except for on the joints. The support allows the pipe to be fitted 225mm - 385mm away from the wall. Learn More
    Special Price £70.04 Regular Price £91.05
    • In Stock | 48 Hour Delivery
  17. 130mm - 210mm Twin Wall Flat Adjustable Wall Support in Stainless Steel - 200mm

    Key Features:

    Used to connect twin wall flue pipe to the wall. The bracket can be placed anywhere on a length of pipe, except for on the joints. The support allows the pipe to be fitted 130mm - 210mm away from the wall. Learn More
    Special Price £70.46 Regular Price £91.60
    • In Stock | 48 Hour Delivery
  18. Twin Wall Firestop Masking Plate in Matt Black - 150mm

    Key Features:

    A masking plate used to give a neat finish to the underside of a fire stop plate. Learn More
    Special Price £70.90 Regular Price £92.17
    • In Stock | 48 Hour Delivery

Twin Wall Flue Systems

Twin wall flue systems allow you to install a stove safely and efficiently in homes without an existing chimney. Designed with double insulation, these flues ensure that exhaust gases are expelled correctly while keeping the outer pipe cooler, making them ideal for stoves installed outside a traditional chimney.

Why Do You Need a Twin Wall Flue?

  • Safe operation – expels fumes safely while maintaining appropriate surface temperatures
  • Compliance – meets UK building regulations for wood, multi-fuel, or gas stoves
  • Non-chimney installation – allows a stove to be installed in homes without an existing flue
  • Flexible setup – can be used for single or multi-storey installations with straight or angled runs

Styles and Components

Our twin wall flue range includes:

  • Double insulated pipes – available in multiple diameters for different stove types
  • Adapters, bends, and T-pieces – to configure the flue according to your installation
  • Top caps and rain cowls – protect the flue from the elements while ensuring proper draft

Before You Choose

Not all stoves require a twin wall flue. These systems are primarily for homes without an existing chimney or for installations outside a standard flue. Check your property layout and stove type carefully to determine if a twin wall system is necessary. Professional installation by a HETAS-qualified engineer is strongly recommended.

Explore Our Range

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

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)