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5" (125mm) Dinak DW Twin Wall Chimney System

Dinak DW was started back in 1983 and since then has been striving for high quality and technological innovation within the field of heating solutions. Our 5" high quality Dinak Twin Wall range of insulated flue pipes have an accurate 125mm internal diameter, 30mm of compressed insulation and an external diameter of 175mm.

Note, Locking Bands must be purchased separately and provide for safe and secure connections without the need for extra sealants or cements.

Please note, all items listed below which fit around the 5" Dinak Twin Wall such as Wall Brackets, Finishing Plates and Storm Collars will measure 175mm to accommodate the greater external diameter of the pipes.



5 Inch (125mm) Adapter to SW (Vitreous)

5 Inch (125mm) Adapter to SW (Vitreous)
£27.97 inc VAT
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3-5 day delivery

5 - 6 Inch (125mm) Increaser Adapter to SW

5 - 6 Inch (125mm) Increaser Adapter to SW
£38.57 inc VAT
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3-5 day delivery

5 Inch (125mm) Draught Stabiliser

5 Inch (125mm) Draught Stabiliser
£239.88 inc VAT
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3-5 day delivery

5 Inch (125mm) Draught Regulator

5 Inch (125mm) Draught Regulator
£78.50 inc VAT
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3-5 day delivery

5 Inch (125mm) Straight Length 1000mm (940mm eff. length)

5 Inch (125mm) Straight Length 1000mm (940mm eff. length)
£59.33 inc VAT
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5 Inch (125mm) Straight Length 500mm (440mm eff. length)

5 Inch (125mm) Straight Length 500mm (440mm eff. length)
£36.64 inc VAT
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5 Inch (125mm) Straight Length 330mm (270mm eff. length)

5 Inch (125mm) Straight Length 330mm (270mm eff. length)
£30.53 inc VAT
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5 Inch (125mm) Straight Length 200mm - (140mm eff. length)

5 Inch (125mm) Straight Length 200mm - (140mm eff. length)
£27.48 inc VAT
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3-5 day delivery

5 Inch (125mm) Adjustable Length (880mm-530mm)

5 Inch (125mm) Adjustable Length (880mm-530mm)
£75.04 inc VAT
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5 Inch (125mm) Adjustable Length (530mm-350mm)

5 Inch (125mm) Adjustable Length (530mm-350mm)
£57.58 inc VAT
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5 Inch (125mm) Adjustable Length - (380mm-250mm)

5 Inch (125mm) Adjustable Length - (380mm-250mm)
£51.82 inc VAT
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3-5 day delivery

5 Inch (125mm) 90 Deg Elbow

5 Inch (125mm) 90 Deg Elbow
£84.25 inc VAT
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5 Inch (125mm) 45 Deg Elbow

5 Inch (125mm) 45 Deg Elbow
£40.10 inc VAT
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3-5 day delivery

5 Inch (125mm) 30 Deg Elbow

5 Inch (125mm) 30 Deg Elbow
£46.24 inc VAT
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5 Inch (125mm) 15 Deg Elbow

5 Inch (125mm) 15 Deg Elbow
£46.24 inc VAT
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5 Inch (125mm) 135 Deg Tee

5 Inch (125mm) 135 Deg Tee
£119.50 inc VAT
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5 Inch (125mm) 90 Deg Tee

5 Inch (125mm) 90 Deg Tee
£69.79 inc VAT
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5 Inch (125mm) Tee Cap

5 Inch (125mm) Tee Cap
£23.02 inc VAT
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5 Inch (125mm) Tee Cap c/w Drain

5 Inch (125mm) Tee Cap c/w Drain
£32.66 inc VAT
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3-5 day delivery

5 Inch (125mm) Locking Band

5 Inch (125mm) Locking Band
£10.00 inc VAT
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5 Inch (125mm) Wall Support c/w Locking Band

5 Inch (125mm) Wall Support c/w Locking Band
£17.00 inc VAT
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5 Inch (125mm) Adj Wall Support 70-120mm + Lock Band

5 Inch (125mm) Adj Wall Support 70-120mm + Lock Band
£20.00 inc VAT
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5 Inch (125mm) Adj Wall Spt (Cuttable) 100-250mm+Lock Band

5 Inch (125mm) Adj Wall Spt (Cuttable) 100-250mm+Lock Band
£44.42 inc VAT
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5 Inch (125mm) Adj Wall Spt (Cuttable) 250-430mm+Lock Band

5 Inch (125mm) Adj Wall Spt (Cuttable) 250-430mm+Lock Band
£50.76 inc VAT
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3-5 day delivery

5 Inch (125mm) Flat Wall Support

5 Inch (125mm) Flat Wall Support
£16.00 inc VAT
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5 Inch (125mm) Adj Wall Support 70-120mm FLAT

5 Inch (125mm) Adj Wall Support 70-120mm FLAT
£19.49 inc VAT
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5 Inch (125mm) Adj Wall Spt (Cuttable) 100-250mm FLAT

5 Inch (125mm) Adj Wall Spt (Cuttable) 100-250mm FLAT
£47.20 inc VAT
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3-5 day delivery

5 Inch (125mm) Adjustable Base Support & Brackets

5 Inch (125mm) Adjustable Base Support & Brackets
£107.84 inc VAT
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3-5 day delivery

5 Inch (125mm) Roof Support

5 Inch (125mm) Roof Support
£19.84 inc VAT
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3-5 day delivery

5 Inch (125mm) Joist Support

5 Inch (125mm) Joist Support
£25.27 inc VAT
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3-5 day delivery

5 Inch (125mm) Guy Wire Bracket

5 Inch (125mm) Guy Wire Bracket
£16.00 inc VAT
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3-5 day delivery

5 Inch (125mm) Firestop Plate (stainless steel)

5 Inch (125mm) Firestop Plate (stainless steel)
£30.95 inc VAT
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3-5 day delivery

5 Inch (125mm) Ventilated Firestop Plate

5 Inch (125mm) Ventilated Firestop Plate
£58.79 inc VAT
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3-5 day delivery

5 Inch (125mm) Storm Collar

5 Inch (125mm) Storm Collar
£20.60 inc VAT
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3-5 day delivery

5 Inch (125mm) Rain Cap

5 Inch (125mm) Rain Cap
£34.27 inc VAT
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3-5 day delivery

5 Inch (125mm) Open Terminal

5 Inch (125mm) Open Terminal
£47.10 inc VAT
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3-5 day delivery

5 Inch (125mm) Weathering Cap

5 Inch (125mm) Weathering Cap
£39.91 inc VAT
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3-5 day delivery

5 Inch (125mm) Weathering GAS Cap

5 Inch (125mm) Weathering GAS Cap
£58.85 inc VAT
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3-5 day delivery

5 Inch (125mm) Joint Seal

5 Inch (125mm) Joint Seal
£7.00 inc VAT
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3-5 day delivery

5 Inch (125mm) Finishing Plate 0-30 degrees

5 Inch (125mm) Finishing Plate 0-30 degrees
£29.38 inc VAT
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3-5 day delivery

5 Inch (125mm) Finishing Plate 30-45 degrees

5 Inch (125mm) Finishing Plate 30-45 degrees
£29.38 inc VAT
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3-5 day delivery

5 Inch (125mm) Wall Sleeve

5 Inch (125mm) Wall Sleeve
£22.21 inc VAT
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3-5 day delivery

Guy Wire Installation Kit

Guy Wire Installation Kit
£55.00 inc VAT
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Next day available

High Temp Silicone Flashing for Tiled Roof for 5" Twin Wall Pipe

High Temp Silicone Flashing for Tiled Roof for 5" Twin Wall Pipe
£36.59 inc VAT
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Next day available

Roof Flashing Silicone Fixing Kit

Roof Flashing Silicone Fixing Kit
£7.99 inc VAT
4.5 of 5 Stars!
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Installing a Twin Wall Flue System

As no two twin wall flue systems are the same you need to plan the route of your flue pipe and get all the parts required to route your twin wall flue. For more information on installing a twin wall flue system, see our guide.

Why Install a Twin Wall Flue System?

You will need to install a twin wall flue system if you are planning on passing your flue through a wall, ceiling or roof or if it runs externally. In all of these cases a twin wall flue system is required.

Twin wall flue parts

All the parts in our twin wall flue section are designed to fit together to form one continuous twin wall flue system. If you require any help with planning your twin wall flue system then call us on: 01376 555 182.