Description

Twin Wall to Flex Adapter Twin Flue 6 Inch – TWPro, Stainless Steel, HETAS & UKCA Approved

The Twin Wall to Flex Adapter Twin Flue (6 inch) TWPro is a transitional adaptor that connects TWPro twin wall flue systems to MI-Flues multi-fuel flexible liners. Featuring a secure screw-fix coupling, this adapter ensures a safe, airtight transition—designed to be installed inside an existing class 1 chimney, with no flexible liner visible outside the brick or clay chimney.

Why Choose the Twin Wall to Flex Adapter?

Manufactured from 304 grade stainless steel (outer) and 316 grade stainless steel (inner), both 0.4mm thick, this fully welded adaptor is insulated with high-density compressed rockwool for superior safety. HETAS approved and UKCA marked, it’s tested to 600°C and comes with a 25-year warranty. Ideal for all solid fuel, gas, and oil appliances.

Key Features

Secure Transition: Connects TWPro twin wall to MI-Flues flexible liner
Screw Fix Coupling: Tight, reliable connection
Durable Construction: 304/316 stainless steel, fully welded
Insulated: Compressed rockwool for maximum safety
Certified & Approved: HETAS approved, UKCA marked, EN1856-1 compliant
Warranty: 25 years (conditional), 2 years on paint
System: For use with TWPro Twin Wall Flue parts only

Product Specifications

Type: Twin Wall to Flex Adapter
Internal Diameter: 6 inch (150mm)
External Diameter: 8 inch (200mm)
Material: 304 Stainless Steel (outer), 316 Stainless Steel (inner), 0.4mm thick
Insulation: Compressed rockwool, 200kg/m³
Finish: Stainless Steel Mirror
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 adapters and twin wall flue accessories, visit modernstoves.co.uk.

Need advice? Call 0161 439 1400.