Why Choose the Adjustable Twin Flue?

Manufactured from 304 grade stainless steel (outer) and 316 grade stainless steel (inner), both 0.4mm thick, this fully welded adjustable pipe is finished in a stainless steel mirror for a premium appearance. HETAS approved and UKCA marked, it’s tested to 600°C and comes with a 25-year warranty. Suitable for all solid fuel, gas, and oil appliances, and designed for use with TWPro twin wall flue systems.

Key Features

Adjustable Length: 350–500mm range, two-piece construction
Custom Fit: Ceramic blanket insulation can be cut to size
Integral Locking Band: Fitted for secure, easy installation
Durable Construction: 304/316 stainless steel, fully welded, mirror finish
Certified & Approved: HETAS approved, UKCA marked, EN1856-1 compliant
High Temperature Resistance: Safe up to 600°C
Warranty: 25 years (conditional), 2 years on paint
System: For use with TWPro Twin Wall Flue parts only

Product Specifications

Type: Adjustable Twin Wall Pipe
Adjustment Range: 350–500mm
Internal Diameter: 5 inch (125mm)
External Diameter: 7 inch (175mm)
Insulation: Body soluble ceramic blanket, cut to fit
Material: 304 Stainless Steel (outer), 316 Stainless Steel (inner), 0.4mm thick
Finish: Stainless Steel Mirror
Locking Band: Integral, fitted to each length
Approvals: HETAS, UKCA, EN1856-1
Warranty: 25 years (conditional), 2 years paint

Additional Information

FREE Delivery: Available on orders over £100. Click here to check delivery information for your area.

For more adjustable pipes and twin wall flue accessories, visit modernstoves.co.uk.