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Twin Wall to Flex Adaptor Ø 80 (2-80-099)

National Flues presents the Twin Wall to Flex Adaptor Ø 80 – the ideal solution for connecting TWPro twin wall chimneys to MI-Flues multi-fuel liners. This adaptor, built for both solid fuel and gas/oil appliances, combines robust stainless steel construction with meticulous design for an efficient flue system. Read more...
Twin Wall to Flex Adaptor Ø 80
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Now only £47.99
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At a Glance

  • Crafted with dual stainless steel construction (304 outer, 316 inner) for durability
  • Fully welded design ensuring a robust and secure connection
  • Suitable for both solid fuel and gas/oil appliances
  • Efficient insulation using compressed rockwool for thermal protection
  • HETAS Approved and CE marked for safety compliance
  • Seamless transition inside existing class 1 chimneys, keeping the flexible liner concealed

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.
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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).

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

The Twin Wall to Flex Adaptor Ø 80 is crafted for seamless connection between TWPro twin wall insulated chimneys and MI-Flues multi-fuel liners. Suitable for use with solid fuel and gas/oil appliances, this adaptor ensures safe and efficient flue transitions. Constructed with a robust outer skin of 304-grade stainless steel and an inner skin of 316-grade stainless steel, both 0.4mm thick, it promises durability and longevity.

The insulation is made from compressed rockwool with a density of 200kg/m3, providing superior thermal protection. Fully welded parts ensure a secure fit. Maintain a minimum distance of 50mm from combustibles to ensure safety.

Approved by HETAS and CE marked, this adaptor holds the designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20. Installation is straightforward with a locking band that secures the chimney parts, ensuring a stable and reliable assembly. Make this transition inside an existing class 1 chimney to keep the flexible flue liner hidden from view.

SKU: 2-80-099

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.

This is us — real advice over the phone, or at the counter, and real stock in our warehouse.

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Technical Specifications
ModelTwin Wall to Flex Adaptor Ø 80
Materials304-grade Stainless Steel - 0.40mm thick, 316-grade Stainless Steel - 0.40mm thick
InsulationCompressed rockwool (density: 200kg/m³)
CertificationsHETAS Approved, CE Marked
Approval DesignationsEN1856-1 T600 N1 W V2 L50040 G50, EN1856-1 T200 W V2 L50040 O20
Suitable FuelsWood, Oil, Gas, Low sulphur coal
Installation RequirementMinimum 50mm distance from combustibles
System CompatibilityTWPro twin wall to MI-Flues multi-fuel liners
Installation is straightforward with our Twin Wall to Flex Adaptor. Begin by ensuring that your existing class 1 chimney is free from any obstructions and that a minimum distance of 50mm from combustible materials is maintained. Fit the adaptor inside the chimney, aligning it securely with the twin wall flue system. Use the locking band provided to secure the connection to the flexible flue liner firmly. Double-check all joins to ensure the adaptor is fully welded and no gaps remain. It is advisable to follow local building regulations or consult a professional installer to guarantee safety and compliance.

The adaptor is made from 304-grade stainless steel on the outer skin and 316-grade stainless steel on the inner skin, both 0.4mm in thickness.

Yes, it is suitable for solid fuel appliances such as wood stoves and gas/oil appliances including gas fires and oil boilers.

The Twin Wall to Flex Adaptor Ø 80 is HETAS Approved and CE marked, ensuring it meets high safety and performance standards.

The adaptor should be secured using a locking band, making sure to maintain a distance of 50mm from any combustible materials.

The insulation, made from compressed rockwool with a density of 200kg/m3, provides thermal protection and ensures safe operation of the flue system.

Yes, all parts of the adaptor are fully welded to ensure a strong and secure connection.

The transition should be made inside an existing class 1 chimney, so no flexible liner is visible outside the brick or clay chimney.

 

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