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Flex to Twin Wall Adaptor Ø 80 (2-80-101)

National Flues presents the Flex to Twin Wall Adaptor Ø 80, a premium chimney fitting designed for seamless integration between MI-Flues multi-fuel liners and TWPro Twin Wall systems. Engineered from high-quality stainless steel with robust insulation, this adaptor is the ideal solution for woodstoves, gas appliances, oil boilers, and coal effect fires. Read more...
Flex to Twin Wall Adaptor Ø 80
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At a Glance

  • Seamless connection between MI-Flues multi-fuel liners and TWPro Twin Wall Chimney systems
  • Constructed from premium 304 and 316 stainless steel for superior durability
  • 40mm thick stainless steel walls ensure optimal heat resistance
  • Compressed rockwool insulation at 200kg/m3 for enhanced thermal performance
  • HETAS and CE certified, meeting EN1856-1 standards
  • Enforces a safe 50mm clearance to combustible materials
  • Easy screw-fix coupling with a secure Locking Band for installation

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

We Won't Be Beaten On Price

At National Flues, we continuously monitor competitor prices. This ensures that we consistently offer you the best deals on all our products. Here’s how we keep your costs low:

  • Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
  • Bulk Purchasing Power: We sell a lot, so we can negotiate better rates with suppliers, passing the savings directly to you.
  • Operational Efficiency: We have streamlined processes to reduce overhead.

Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.

Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).

“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.

Have Questions?
Phone: 01670 206999
Email: sales@nationalflues.com

The Flex to Twin Wall Adaptor Ø 80 is a vital component for connecting MI-Flues multi-fuel liners to TWPro Twin Wall Insulated Chimney systems. Designed for use with solid fuel, gas, and oil appliances—such as woodstoves, gas coal effect fires, and boilers—this adaptor boasts superior construction quality. The outer skin is crafted from 304-grade stainless steel, and the inner skin from 316-grade stainless steel, both with a 0.4mm thickness.

Compressed rockwool insulation ensures a density of 200kg/m3, offering robust heat resistance. Each piece is fully welded to ascertain durability and reliability. For safety, a 50mm clearance to combustible materials is mandatory.

Certified by CE and HETAS, it meets the stringent standards EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20, making it a dependable choice for both domestic and commercial installations. Installation is straightforward with the use of a Locking Band to secure components together, ensuring a tight and secure fit.

SKU: 2-80-101

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

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Technical Specifications
ModelFlex to Twin Wall Adaptor Ø 80
Outer Material304 Stainless Steel (0.40mm)
Inner Material316 Stainless Steel (0.40mm)
InsulationCompressed Rockwool (200kg/m3)
CertificationHETAS / CE
StandardsEN1856-1 T600 N1 W V2 L50040 G50, EN1856-1 T200 W V2 L50040 O20
Clearance50mm to Combustibles
Appliance CompatibilityWoodstoves, Gas Appliances, Oil Boilers, Coal Effect Fires
• Ensure the adaptor is installed inside an existing Class 1 chimney to avoid any visible transitions outside the brick or clay structure. • Maintain a minimum 50mm clearance from the outside of the flue to any combustible material such as wood, plasterboard, or insulation. • Secure all components using the recommended Locking Band to ensure a tight, secure, and long-lasting fit. • Follow the detailed manufacturer’s guidelines and local regulations to guarantee proper installation and safety compliance. • Always verify that all joins are fully welded and no gaps exist for optimal performance and security.

The adaptor seamlessly connects MI-Flues multi-fuel liners to TWPro Twin Wall Chimney systems, facilitating safe and efficient chimney transitions.

It is suitable for solid fuel, gas, and oil appliances, including woodstoves, gas coal effect fires, and boilers.

The outer skin is made from 304-grade stainless steel, and the inner skin is made from 316-grade stainless steel—both at a thickness of 0.4mm. The insulation is comprised of compressed rockwool with a density of 200kg/m3.

Yes, it is CE marked and HETAS approved, meeting EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20 standards.

Ensure a distance of 50mm is maintained from the outside of the flue to any combustible material (such as wood or plasterboard). Secure the components using a Locking Band during installation.

No, the transition should be made inside an existing Class 1 chimney, ensuring no flex is visible outside the brick or clay chimney.

Absolutely, National Flues provides reliable delivery services across the UK and caters to both retail and trade customers.

 

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