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Twin Wall to Flex Adaptor Ø 100 (2-100-099)

National Flues' Twin Wall to Flex Adaptor Ø 100mm offers an exceptional solution for transitioning between Twin Wall flue systems and MI-Flues multi-fuel liners. Expertly designed for woodstoves, gas, and oil appliances, this adaptor combines robust stainless steel construction with superior insulated performance to ensure safety and efficiency. Read more...
Twin Wall to Flex Adaptor Ø 100
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Now only £48.99
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At a Glance

  • Robust construction with dual stainless steel layers (304 outer and 316 inner, each 0.40mm thick)
  • Superior thermal efficiency with 200kg/m³ compressed rockwool insulation
  • Fully welded design ensuring a secure, leak-free transition between Twin Wall and flex liners
  • Certified to HETAS and CE standards, meeting EN1856-1 requirements
  • Maintains a safe 50mm clearance from combustible materials

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

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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 Twin Wall to Flex Adaptor Ø100mm is engineered for efficient and secure transitions between your Twin Wall flue system and MI-Flues multi-fuel liner. Designed for use with solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, and oil or gas boilers, this adaptor boasts superior construction from high-grade stainless steel. The outer skin is made from 304 grade stainless steel, while the inner skin features 316 grade stainless steel, both with a thickness of 0.4mm.

Insulating the unit is compressed rockwool, providing a density of 200kg/m3, ensuring maximum thermal efficiency. Fully welded for enhanced durability, this adaptor maintains a safe distance of 50mm from combustible materials, adhering to the highest safety standards. TWPro is HETAS approved and CE marked, ensuring compliance with industry regulations.

The installation is straightforward, relying on a secure Locking Band, making it a reliable choice for any installation project.

SKU: 2-100-099

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
Adaptor SizeØ 100mm
Inner Material316L Stainless Steel (0.40mm thick)
Outer Material304 Stainless Steel (0.40mm thick)
InsulationCompressed Rockwool, 200kg/m³
Clearance50mm from combustibles
ApprovalsHETAS, CE
StandardsEN1856-1 T600 N1 W V2 L50040 G50 / EN1856-1 T200 W V2 L50040 O20
ApplicationsSolid fuel, gas, and oil appliances
Installation MethodSecure Locking Band
• Ensure the adaptor is installed only on a class 1 chimney with no visible flexible liner. • Secure the adaptor in position using the provided Locking Band for a reliable connection. • Always maintain a minimum clearance of 50mm between the adaptor and any combustible materials to meet safety regulations. • Read and follow all manufacturer guidelines and local building regulations prior to installation. • For additional security and compliance, consider professional installation if you are unsure.

Yes, the Twin Wall to Flex Adaptor Ø100mm is suitable for use with solid fuel, gas, and oil appliances including woodstoves, gas coal effect fires, and boilers.

The adaptor is constructed with 304 grade stainless steel for the outer skin and 316 grade stainless steel for the inner skin, both having a thickness of 0.4mm.

Yes, the Twin Wall to Flex Adaptor Ø100mm is HETAS approved and CE marked for assurance of quality and compliance with industry standards.

A distance of 50mm from the outside of the flue to any combustible materials such as wood or plasterboard is required.

The adaptor is secured using a Locking Band to ensure a firm connection. The installation must be conducted in a class 1 chimney with no flexible flue liner visible from the outside.

The Twin Wall to Flex Adaptor Ø100mm is insulated with compressed rockwool at a density of 200kg/m3, ensuring excellent thermal insulation.

The adaptor complies with EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20 standards.

 

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