Shop our range of Thermotec T600 insulated twin wall flue, with the components you need to build a complete stove and chimney system.

Available in standard 125mm (5") and 150mm (6") sizes, the range includes straight and adjustable lengths, bends, tees, adaptors, brackets, supports and terminals, with stainless steel and matt black finishes available.

Thermotec T600 is a fully insulated system for installations where a suitable masonry chimney isn't available, or where the flue needs to continue safely through the building or externally. Its twist-lock components make it straightforward to build the route your installation needs.

The T600 system is tested to EN 1856 and is backed by a 15-year Thermotec guarantee, subject to the manufacturer's registration, installation and maintenance requirements.

Not sure how your system needs to come together? Take a look at the Thermotec technical documents below, or get in touch with our team and we'll help you work through the parts you need.

Twin Wall Flue

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T600 5" - 5" Twin Wall Appliance Adaptor
34 in stock now
£31.50 £33.55
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T600 Twin Wall - 120mm Straight Length

T600 5" Twin Wall - 120mm Straight Length
38 in stock now
£44.00 £46.50
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T600 Twin Wall - 300mm Straight Length

T600 5" Twin Wall - 300mm Straight Length
23 in stock now
£57.00 £60.00
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T600 Twin Wall - 500mm Straight Length

T600 5" Twin Wall - 500mm Straight Length
79 in stock now
£78.50 £83.00
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T600 Twin Wall - 1000mm Straight Length

T600 5" Twin Wall - 1000mm Straight Length
246 in stock now
£112.00 £118.00
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T600 5" Twin Wall - 1000mm Starter Length - Black
17 in stock now
£178.00 £188.00
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T600 Twin Wall - Adjustable Straight Length 350-530mm

T600 5" Twin Wall - Adjustable Straight Length 350-530mm
35 in stock now
£104.00 £110.00
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T600 5" Twin Wall - Adjustable Straight Length 600-1000mm

T600 5" Twin Wall - Adjustable Straight Length 600-1000mm
12 in stock now
£125.00 £132.00
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T600 5" Rain Cap / Windshield

T600 5" Rain Cap / Windshield
25 in stock now
£74.00 £78.00
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T600 Rain Cap / Anti Bird Guard Mesh

T600 5" Rain Cap / Anti Bird Guard Mesh
39 in stock now
£71.00 £75.00
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T600 Twin Wall - Two Segment Elbow 15°

T600 5" Twin Wall - Two Segment Elbow (15°)
30 in stock now
£72.00 £76.00
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T600 Twin Wall - Two Segment Elbow 30°

T600 5" Twin Wall - Two Segment Elbow (30°)
23 in stock now
£87.00 £92.00
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T600 Twin Wall - Two Segment Elbow 45°

T600 5" Twin Wall - Two Segment Elbow (45°)
5 in stock now
£93.00 £98.00
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T600 Twin Wall - Two Segment Elbow 90°

T600 5" Twin Wall - Three Segment Elbow (90°)
£87.00
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T600 Twin Wall - Tee & Cap 135°

T600 5" Twin Wall - Tee & Cap (135°)
13 in stock now
£131.00 £138.00
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T600 Twin Wall - Equal Tee & Cap 90°

T600 5" Twin Wall - Equal Tee & Cap (90°)
2 in stock now
£119.50 £126.00
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T600 5" Standard Wall Bracket

T600 5" Standard Wall Bracket
110 in stock now
£30.00 £32.00
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T600 Adjustable Twin Wall Bracket

T600 5" Adjustable Twin Wall Bracket
82 in stock now
£40.00 £42.50
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T600 Adjustable Ceiling / Wall Trim

T600 5" Adjustable Ceiling / Wall Trim
24 in stock now
£31.00 £33.00
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T600 Twin Wall Storm Collar

T600 5" Storm Collar
24 in stock now
£28.00 £30.00
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T600 Roof / Rafter Support

T600 5" Roof / Rafter Support
34 in stock now
£42.00 £45.00
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T600 Twin Wall Locking Band

T600 5" Twin Wall Locking Band
96 in stock now
£10.00 £11.00
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T600 5" Ventilated Firestop
39 in stock now
£63.00 £67.00
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T600 Ventilated Firestop & Bracket

T600 5" Ventilated Support Plate
27 in stock now
£63.00 £67.00
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