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Flex to Twin Wall Adaptor Ø 200 (2-200-101)

National Flues proudly offers the Flex to Twin Wall Adaptor Ø 200, a premium solution engineered for high-performance chimney systems. Suitable for use with woodstoves, gas appliances and oil boilers, this stainless steel adaptor seamlessly connects MI-Flues multi-fuel liners to TWPro twin wall chimneys. Read more...
Now only £93.99
Give us a call if you find it cheaper and we'll normally price match.
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At a Glance

  • High-grade stainless steel construction (304 outer, 316 inner)
  • Dual-layer, 0.4mm thick design for durability
  • Compressed rockwool insulation with 200kg/m3 for exceptional thermal performance
  • HETAS approved and CE marked for safety compliance
  • Designed for solid fuel, gas, and oil appliance applications

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 200 is a premier solution for connecting MI-Flues multi-fuel liners to TWPro Twin Wall Chimneys. This unit is crafted for use with solid fuel, gas, and oil appliances, including woodstoves, gas coal effect fires, and boilers. Constructed with dual layers of stainless steel, the outer skin is made from durable 304-grade stainless steel (0.4mm thick), while the inner skin boasts 316-grade stainless steel (0.4mm thick) for enhanced heat resistance and longevity.

The adaptor features compressed rockwool insulation, offering a density of 200kg/m3 to ensure superior thermal performance. For safety, a critical 50mm distance from combustibles must be maintained. The TWPro system secured by locking bands offers ease of installation, and the entire assembly is both HETAS approved and CE marked, ensuring compliance with strict safety standards.

Perfect for use inside existing Class 1 Chimneys, this adaptor transitions seamlessly with a screw-fix coupling, keeping flex hidden within the chimney structure.

SKU: 2-200-101

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.

Technical Specifications
SKU2-200-101
Material Outer304 Stainless Steel, 0.4mm thick
Material Inner316 Stainless Steel, 0.4mm thick
InsulationCompressed rockwool, 200kg/m3
ApprovalsHETAS, CE
ApplicationSolid fuel, gas, oil appliances
Minimum Distance To Combustibles50mm
- The adapter uses a robust screw-fix coupling to secure the flexible flue liner within Class 1 chimneys. - Ensure a minimum clearance of 50mm between the adaptor’s outer surface and any combustible materials such as wood or plasterboard. - Follow the provided installation guidelines closely to ensure the flexible flue remains concealed within the chimney structure. - For optimal performance, please refer to the manufacturer's detailed installation manual and safety instructions during setup.

The adaptor 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, while the inner skin uses 316-grade stainless steel. Both are 0.4mm thick.

The adaptor features compressed rockwool insulation with a density of 200kg/m3.

The adaptor is HETAS approved and CE marked, meeting high safety and performance standards.

A distance of 50mm from the flue's outer surface to any combustible material, such as wood or plasterboard, must be maintained.

The TWPro Twin Wall Insulated Chimney parts are secured with a Locking Band, and the adaptor’s screw-fix coupling attaches to the flexible flue liner inside Class 1 Chimneys.

No, the flexible flue liner should not be visible outside the brick or clay chimney. The transition must be entirely inside the chimney.

 

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