Flex to Twin Wall Adaptor Ø 150
At a Glance
- Secure screw-fix coupling design for a firm connection
- Durable 304 & 316 stainless steel construction (0.40mm thickness)
- Compressed rockwool insulation (200kg/m³) for optimal thermal efficiency
- HETAS approved and CE marked for assured safety
- Versatile compatibility with wood, oil, gas, and low sulphur coal appliances

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]
- Info
- Specs
- Install
- FAQs
The Flex to Twin Wall Adaptor Ø 150 is expertly designed for use with solid fuel, gas, and oil appliances, making it a versatile choice for a range of heating solutions including woodstoves, gas coal effect fires, and various boilers. Constructed with durability in mind, the outer skin is made of 304-grade stainless steel and the inner skin of 316-grade stainless steel, both 0.4mm thick. It features compressed rockwool insulation with a density of 200kg/m³, ensuring high thermal efficiency.
This adaptor is HETAS approved and CE marked, guaranteeing safety and compliance. It’s specified under EN1856-1 for both T600 and T200 ratings, offering robust performance across different applications. The TWPro Twin Wall Insulated Chimney parts need to be secured using a Locking Band, maintaining a safe 50mm distance from combustibles.
This essential piece ensures a seamless transition within your Class 1 Chimney, keeping the flexible liner concealed within the brick or clay structure.
SKU: 2-150-101
Technical Specifications | |
---|---|
SKU | 2-150-101 |
Designation | EN1856-1 T600 N1 W V2 L50040 G50 / EN1856-1 T200 P1 W V2 L50040 020 |
Inner Material | 316L Stainless Steel, 0.40mm |
Outer Material | 304 Stainless Steel, 0.40mm |
Insulation | Compressed Rockwool, 200kg/mu00b3 |
Approvals | HETAS, CE |
Compatible Systems | MI-Flues multi-fuel liners, TWPro chimney systems |
Distance To Combustibles | 50mm |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, April 8th. 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. If you find it cheaper within 48 hours, we'll refund the difference.
Compatible and other products that may be of interest...
National Flues Ltd Verdict
The Flex to Twin Wall Adaptor Ø 150 is an excellent choice for connecting your multi-fuel liner to a twin wall flue system. It’s a highly reliable and approved solution for both solid fuel and gas appliances. With National Flues, you can count on prompt nationwide delivery and competitive prices. Available for both retail and trade customers, securing your chimney system has never been easier.
The Flex to Twin Wall Adaptor Ø 150 is designed to connect MI-Flues multi-fuel liners to TWPro chimney systems, ensuring safe and efficient transitions within class 1 chimneys.
National Flues is a leading supplier of fireplaces and flues, providing unbeatable prices and reliable delivery to both retail and trade customers across the UK. Known for quality and customer satisfaction, National Flues is your go-to source for all chimney and flue needs.
