Items 1-18 of 306

View as List Grid
Page
per page
  1. 135 Degree Long Adjustable Branch Twin Wall Tee Piece in Matt Black - 150mm

    Key Features:

    A 135 degree long adjustable branch tee piece is used when the flue is passing through the wall at a 45 degree angle, it turns the flue pipe from 45 degree to vertical with an access hatch at the bottom for sweeping the flue system. Supplied with a locking band. Learn More
    Special Price £357.83 Regular Price £465.18
    • In Stock | 48 Hour Delivery
  2. 135 Degree Long Branch Twin Wall Tee Piece in Matt Black - 150mm

    Key Features:

    A 135 degree long branch tee piece is used when the flue is passing through the wall at a 45 degree angle, it turns the flue pipe from 45 degree to vertical with an access hatch at the bottom for sweeping the flue system. Supplied with a locking band. Learn More
    Special Price £338.26 Regular Price £439.74
    • In Stock | 48 Hour Delivery
  3. 135 Degree Long Adjustable Branch Twin Wall Tee Piece in Matt Black - 125mm

    Key Features:

    A 135 degree long adjustable branch tee piece is used when the flue is passing through the wall at a 45 degree angle, it turns the flue pipe from 45 degree to vertical with an access hatch at the bottom for sweeping the flue system. Supplied with a locking band. Learn More
    Special Price £325.04 Regular Price £422.55
    • In Stock | 48 Hour Delivery
  4. 135 Degree Long Branch Twin Wall Tee Piece in Matt Black - 125mm

    Key Features:

    A 135 degree long branch tee piece is used when the flue is passing through the wall at a 45 degree angle, it turns the flue pipe from 45 degree to vertical with an access hatch at the bottom for sweeping the flue system. Supplied with a locking band. Learn More
    Special Price £306.80 Regular Price £398.84
    • In Stock | 48 Hour Delivery
  5. Twin Wall Chimney Cage in Stainless Steel - 150mm

    Key Features:

    A chimney cage fitted to the top of the flue to stop birds and debris entering the flue system. Supplied with a locking band. Learn More
    Special Price £297.49 Regular Price £386.74
    • In Stock | 48 Hour Delivery
  6. 135 Degree Twin Wall Tee Piece in Matt Black - 200mm

    Key Features:

    A 135 degree tee piece is used when the flue is passing through the wall at a 45 degree angle, it turns the flue pipe from 45 degree to vertical with an access hatch at the bottom for sweeping the flue system. Supplied with a locking band. Learn More
    Special Price £295.61 Regular Price £384.29
    • In Stock | 48 Hour Delivery
  7. 135 Degree Long Adjustable Branch Twin Wall Tee Piece in Stainless Steel - 150mm

    Key Features:

    A 135 degree long adjustable branch tee piece is used when the flue is passing through the wall at a 45 degree angle, it turns the flue pipe from 45 degree to vertical with an access hatch at the bottom for sweeping the flue system. Supplied with a locking band. Learn More
    Special Price £289.70 Regular Price £376.61
    • In Stock | 48 Hour Delivery
  8. 135 Degree Long Adjustable Branch Twin Wall Tee Piece in Stainless Steel - 125mm

    Key Features:

    A 135 degree long adjustable branch tee piece is used when the flue is passing through the wall at a 45 degree angle, it turns the flue pipe from 45 degree to vertical with an access hatch at the bottom for sweeping the flue system. Supplied with a locking band. Learn More
    Special Price £275.96 Regular Price £358.75
    • In Stock | 48 Hour Delivery
  9. 135 Degree Long Branch Twin Wall Tee Piece in Stainless Steel - 150mm

    Key Features:

    A 135 degree long branch tee piece is used when the flue is passing through the wall at a 45 degree angle, it turns the flue pipe from 45 degree to vertical with an access hatch at the bottom for sweeping the flue system. Supplied with a locking band. Learn More
    Special Price £274.05 Regular Price £356.27
    • In Stock | 48 Hour Delivery
  10. 135 Degree Twin Wall Tee Piece in Matt Black - 175mm

    Key Features:

    A 135 degree tee piece is used when the flue is passing through the wall at a 45 degree angle, it turns the flue pipe from 45 degree to vertical with an access hatch at the bottom for sweeping the flue system. Supplied with a locking band. Learn More
    Special Price £266.34 Regular Price £346.24
    • In Stock | 48 Hour Delivery
  11. 135 Degree Long Branch Twin Wall Tee Piece in Stainless Steel - 125mm

    Key Features:

    A 135 degree long branch tee piece is used when the flue is passing through the wall at a 45 degree angle, it turns the flue pipe from 45 degree to vertical with an access hatch at the bottom for sweeping the flue system. Supplied with a locking band. Learn More
    Special Price £248.86 Regular Price £323.52
    • In Stock | 48 Hour Delivery
  12. From £245.41 Regular Price £397.25

    To £614.51 Regular Price £980.67

    • In Stock | 48 Hour Delivery
  13. 135 Degree Twin Wall Tee Piece in Stainless Steel - 200mm

    Key Features:

    A 135 degree tee piece is used when the flue is passing through the wall at a 45 degree angle, it turns the flue pipe from 45 degree to vertical with an access hatch at the bottom for sweeping the flue system. Supplied with a locking band. Learn More
    Special Price £239.93 Regular Price £311.91
    • In Stock | 48 Hour Delivery
  14. Twin Wall Base Support Unit With Brackets in Matt Black - 200mm

    Key Features:

    A base support is used to provide support at the base of an external flue system. Learn More
    Special Price £219.94 Regular Price £285.92
    • In Stock | 48 Hour Delivery

Items 1-18 of 306

View as List Grid
Page
per page

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

Explore >

Stockport

137 Wellington Road North
Stockport, Cheshire
SK4 2PF

Explore >

Bromsgrove

15 Sherwood Rd
Bromsgrove
B60 3DR

Explore >

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)