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Twin Wall to Flex Adaptor Ø 200 (2-200-099)

The Twin Wall to Flex Adaptor Ø 200 is the ultimate chimney adaptor for seamless flue transitions in the UK. This premium product from National Flues ensures a robust connection between your twin wall system and flexible flue liner, delivering excellence in both performance and installation ease. Ideal for a variety of heating appliances and available nationwide, it represents the pinnacle of chimney transition solutions.
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£95.49
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At a Glance

  • Robust dual stainless steel construction (304 outer, 316 inner)
  • Compressed Rockwool insulation rated at 200kg/m3 for superior thermal protection
  • Seamless transition from twin wall chimney to flexible flue liner
  • HETAS approved and CE marked for safety and reliability
  • Versatile design suitable for solid fuel, oil, gas, woodstoves and more

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: [email protected]

The Twin Wall to Flex Adaptor Ø 200 is a critical component for anyone looking to transition smoothly from a twin wall chimney system to a flexible flue liner. Crafted with precision, its outer skin is constructed from durable 304 grade stainless steel, while the inner skin boasts 316 grade stainless steel, both offering a thickness of 0.4mm. This combination ensures excellent durability and heat resistance.

The adaptor features compressed rockwool insulation, rated at 200kg/m3 density, providing efficient thermal protection. Fully welded and designed to meet rigorous standards, this product is HETAS approved and CE marked. With a safe distance requirement of 50mm to combustible materials, it promises secure installation.

Use this adaptor for solid fuel, gas/oil appliances including woodstoves, gas coal effect fires, and boilers.

SKU: 2-200-099

Technical Specifications
SKU2-200-099
Adaptor Diameter200mm
Inner Material316L Stainless Steel (0.40mm thick)
Outer Material304 Stainless Steel (0.40mm thick)
InsulationCompressed Rockwool (200kg/m3)
ApprovalsHETAS, CE
Distance To Combustibles50mm
Ensure that the adaptor is installed within an existing Class 1 twin wall chimney system using the provided screw fix coupling and locking band. The connection with the flexible flue liner must be tight and secure. Always maintain a minimum clearance of 50mm from any combustible material. Follow all manufacturer instructions and local building regulations to secure both performance and safety.

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

The adaptor features an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, both 0.4mm thick. It is also insulated with compressed rockwool rated at 200kg/m3.

Yes, the Twin Wall to Flex Adaptor Ø 200 is HETAS approved and CE marked, meeting all necessary safety and quality standards.

A safe distance of 50mm from the outside of the flue to any combustible material, like wood or plasterboard, is required during installation.

This adaptor is installed using a locking band to secure it with the TWPro twin wall insulated chimney parts, ensuring a tight and safe connection.

No, the flexible flue liner should not be visible outside an existing brick or clay chimney.

This adaptor allows for a seamless transition between different flue systems, ensures robust construction, provides excellent thermal insulation, and meets stringent safety standards.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, April 30th. If you need faster stove or fireplace delivery please give us a call. We can often reduce longer lead times if we pay the carrier £25 for express delivery. Visit our Shipping Information page for more information.

Warranty & Returns +

All our products come with warranties. Mi-Flex offers a lifetime guarantee. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

Price Match Guarantee +

We will match any price like for like on a retail basis. Give us a call if you find it cheaper and want to buy from us.

Read our review in our Twin Wall to Flex Adaptor Ø 200 buyers guide

Secure your Twin Wall to Flex Adaptor now for a flawless chimney connection that stands the test of time.

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