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4 inch (100mm) Twin wall flue Dinak DW

dinak-twinwall-brochure

Dinak DW is a class 1 Twin wall flue system manufactured in Europe. This Twin wall flue is suitable for use with wood, coal, gas and oil appliances - Stainless steel - The Dinak Twin wall flue system is also perfect for biomass boiler installations.

  • Push fit jointing system - secures using locking band
  • 10 year warranty
  • 30mm of insulation
  • Internal joint system prevents moisture draw through
  • HETAS listed for use on solid fuel applications

Diameter is internal.

Dinak Twin wall flue stainless and black powder coated systems are fully interchangeable.

Note: For more information see the Twin wall flue Technical Guide.

Note: 4 inch twin wall components come supplied with a rubber joint seal fitted - this needs to be removed for non condensing installlations

dinak dw twin wall flue, biomass flue


Adapter to vitreous (4 inch) - Twin wall flue
£33.16
inc VAT  £39.79
Adapter used to change from 4 inch vitreous to 4 inch twin wall flue. Requires a locking band.
Adapter to single wall (4 inch) - Twin wall flue
£20.95
inc VAT  £25.14
Adapter used for boiler installations to connect our stainless steel 1mm pipe to twin wall flue. Requires a locking band.
Boiler adapter (4 inch) - Twin wall flue
£23.11
inc VAT  £27.73
Adapter used to connect your boiler to twin wall flue. Requires a locking band.
Increaser dw to dw (3-4 inch) - Twin wall flue
£54.95
inc VAT  £65.94
Increaser used to increase 3 inch twin wall to 4 inch twin wall. Requires a locking band.
Straight length (4 inch) 1000mm - Twin wall flue
£54.09
inc VAT  £64.91
Straight length pipe, 1000mm. (940mm effective length) Requires a locking band.
Straight length (4 inch) 500mm - Twin wall flue
£32.98
inc VAT  £39.58
Straight length pipe, 500mm. (440mm effective length) Requires a locking band.
Straight length (4 inch) 330mm - Twin wall flue
£27.49
inc VAT  £32.99
Straight length pipe, 330mm. (270mm effective length) Requires a locking band.
Straight length (4 inch) 200mm - Twin wall flue
£26.95
inc VAT  £32.34
Straight length pipe, 200mm. (140mm effective length) Requires a locking band.
Long adjustable pipe (4 inch) 880- 530mm - Twin wall flue
£67.55
inc VAT  £81.06
Telescopic adjustable pipe, 880mm - 530mm. Requires a locking band.
Medium adjustable pipe (4 inch) 530mm-350mm - Twin wall flue
£51.83
inc VAT  £62.20
Telescopic adjustable pipe, 530mm - 350mm. Requires a locking band.
Short adjustable pipe (4 inch) 380 - 250mm - Twin wall flue
£47.95
inc VAT  £57.54
Telescopic adjustable pipe, 380mm - 250mm. Requires a locking band.
90 degree elbow (4 inch) - Twin wall flue
£77.46
inc VAT  £92.95
90 degree elbow allows for a 90 degree change in direction. Requires a locking band.
45 degree elbow (4 inch) - Twin wall flue
£36.89
inc VAT  £44.27
45 degree elbow allows for a 45 degree change in direction. Requires a locking band.
30 degree elbow (4 inch) - Twin wall flue
£42.49
inc VAT  £50.99
30 degree elbow allows for a 30 degree change in direction. Requires a locking band.
15 degree elbow (4 inch) - Twin wall flue
£42.49
inc VAT  £50.99
15 degree elbow allows for a 15 degree change in direction. Requires a locking band.
Straight length with drain (4 inch) 330mm - Twin wall flue
£69.95
inc VAT  £83.94
Straight length with drain, has an effective length of 270mm. Requires a locking band.
Inspection tee (4 inch) - Twin wall flue
biomass
£104.95
inc VAT  £125.94
Inspection tee. Requires a locking band.
90 degree tee (4 inch) - Twin wall flue
£64.16
inc VAT  £76.99
90 degree tee provides cleaning access at the base of the flue. Requires a locking band.
93 degree tee (4 inch) - Twin wall flue
biomass
£64.95
inc VAT  £77.94
93 degree tee. Requires a locking band.
Tee cap (4 inch) - Twin wall flue
£21.16
inc VAT  £25.39
Tee cap is used to close off and provide cleaning access at the base of a tee. Requires a locking band.
Tee cap with drain (4 inch) - Twin wall flue
£30.95
inc VAT  £37.14
Tee cap with drain is used to close off and provide a drain point at the base of the flue. Requires a locking band.
Locking band (4 inch) - Twin wall flue
£4.18
inc VAT  £5.02
Locking band is used to connect two pieces together at the join.
Wall support (4 inch) - Twin wall flue
£11.67
inc VAT  £14.00
Wall support is used to connect two pieces together at the join with its integrated locking band and fixes the chimney to the wall.
Adjustable wall support 70-120mm (4 inch) - Twin wall flue
£13.78
inc VAT  £16.54
Adjustable wall support is used to connect two pieces together at the join ( with its integrated locking band) and fixes the chimney to the wall.
Cuttable wall support 100 - 250mm (4 inch) - Twin wall flue
£40.84
inc VAT  £49.01
Cuttable wall support is used to connect two pieces together at the join (with its integrated locking band) and fixes the chimney to the wall.
Cuttable wall support 250-430mm (4 inch) - Twin wall flue
£46.68
inc VAT  £56.02
Cuttable wall support is used to connect two pieces together at the join (with its integrated locking band) and fixes the chimney to the wall.
Flat wall support (4 inch) - Twin wall flue
£12.40
inc VAT  £14.88
Flat wall support is used to fix the chimney to the wall. Fix anywhere except on a joint.
Flat adjustable wall support 70-120mm (4 inch) - Twin wall flue
£17.92
inc VAT  £21.50
Flat adjustable wall support is used to fix the chimney to the wall. Fix anywhere except on a joint.
Flat cuttable wall support 100-250mm (4 inch) - Twin wall flue
£43.40
inc VAT  £52.08
Flat cuttable wall support is used to fix the chimney to the wall. Fix anywhere except on a joint.
Flat cuttable wall support 250-430mm (4 inch) - Twin wall flue
£49.59
inc VAT  £59.51
Flat cuttable wall support is used to fix the chimney to the wall. Fix anywhere except on a joint.
Adjustable base support (4 inch) - Twin wall flue
£103.27
inc VAT  £123.92
Adjustable base support is designed to be installed at the base of the vertical run of the chimney. Requires a locking band.
DW/Flue liner adapter (4 inch) - Twin wall flue
£38.67
inc VAT  £46.40
Adapter used to connect flue liner to twin wall flue where the bottom part of your masonry chimney has been removed. Requires a locking band and flue liner adapter.
Joist support (4 inch) - Twin wall flue
£22.09
inc VAT  £26.51
Joist support is used where the flue passes through a floor or ceiling.
Roof support (4 inch) - Twin wall flue
£29.95
inc VAT  £35.94
The roof support is designed to be fixed to the underside of the rafters.
Guy wire bracket (4 inch) - Twin wall flue
£11.67
inc VAT  £14.00
Guy wire bracket is a special bracket to which guy wires are attached.
Universal guy wire kit
£49.95
inc VAT  £59.94
The Universal guy wire kit provides lateral support to the flue above the roof line. Guy wire bracket needed.
Basic firestop plate (4 inch) - Twin wall flue
£22.95
inc VAT  £27.54
Basic firestop plate is designed to provide the appropriate distance between the flue and any adjacent material.
Circular firestop plate (4 inch) - Twin wall flue
£24.99
inc VAT  £29.99
Stainless steel circular firestop plate.
Ventilated firestop plate (4 inch) - Twin wall flue
£54.05
inc VAT  £64.86
Ventilated firestop must be used on solid fuel appliances where the flue passes through a combustible floor or ceiling.
Flashing EPDM Res 1
£24.99
inc VAT  £29.99
This flashing is used to provide a weatherproof seal where the flue passes through a tiled or slate roof.
Flashing silicone Res 1 High Temp
£41.66
inc VAT  £49.99
This flashing is used to provide a weatherproof seal where the flue passes through a tiled or slate roof.
Flashing EPDM Res 1 Lead base
£41.63
inc VAT  £49.95
This flashing is used to provide a weatherproof seal where the flue passes through a tiled or slate roof.
Masterflash EPDM No 6
£33.29
inc VAT  £39.95
This flashing is suitable for sheet metal profiled roofs, flat roofs, boats and caravans. Comes with fixing kit.
Masterflash No 6 High Temp
£46.95
inc VAT  £56.34
This flashing is suitable for sheet metal profiled roofs, flat roofs, boats and caravans. Comes with fixing kit.
Lead slate 0-35 degree pitch, for 100mm Dinak twin wall flue
exclusive
£48.62
inc VAT  £58.34
Lead slates are used wherever a pipe penetrates a roof, to form a weatherproof joint. Select the pitch required.
Lead slate 36-45 degree pitch, for 100mm Dinak twin wall flue
exclusive
£51.86
inc VAT  £62.23
Lead slates are used wherever a pipe penetrates a roof, to form a weatherproof joint. Select the pitch required.
Lead slate 46-60 degree pitch, for 100mm Dinak twin wall flue
exclusive
£57.31
inc VAT  £68.77
Lead slates are used wherever a pipe penetrates a roof, to form a weatherproof joint. Select the pitch required.
Storm collar (4 inch) - Twin wall flue
£18.94
inc VAT  £22.73
Storm collar is used as extra protection above the flashing where the flue passes through the roof.
Rain cap (4 inch) - Twin wall flue
£35.02
inc VAT  £42.02
Rain cap is the final element of the vertical run and provides protection from the rain. Requires a locking band.
Weathering cap (4 inch) - Twin wall flue
£38.64
inc VAT  £46.37
The weathering cap is the final element of the vertical run and provides protection from the wind and rain. Requires a locking band.
Open terminal (4 inch) - Twin wall flue
£43.31
inc VAT  £51.97
Open terminal is the final element of the vertical run. Requires a locking band.
Weathering gas cap (4 inch) - Twin wall flue
£54.09
inc VAT  £64.91
The weathering gas cap is the final element of the vertical run and provides protection from the wind and rain. Requires a locking band.
Joint seal (4 inch) - Twin wall flue
£3.00
inc VAT  £3.60
A rubber seal used on condensing installations.
Finishing plate 0-30 degrees (4 inch) - Twin wall flue
£27.00
inc VAT  £32.40
Finishing plate is a two piece plate that covers the hole where the flue goes through the wall.
Finishing plate 30-45 degrees (4 inch) - Twin wall flue
£27.00
inc VAT  £32.40
Finishing plate is a two piece plate that covers the hole where the flue goes through the wall.
Wall sleeve (4 inch) - Twin wall flue
£20.42
inc VAT  £24.50
Wall sleeve protects the chimney as it passes through the wall.

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We welcome trade and retail customers and deliver nationwide from our Nottingham base, East Midlands. Free delivery on most orders.