Single Wall to Twin Wall Adaptor Ø 100
At a Glance
- - Secure and robust connection between single wall and TWPro twin wall systems
- - 304 grade stainless steel outer layer and 316 grade stainless steel inner layer for exceptional durability
- - Uniform 0.40mm wall thickness ensuring performance and safety
- - High-density compressed rockwool insulation providing excellent thermal efficiency
- - Fully welded construction that meets HETAS and CE standards

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 Single Wall to Twin Wall Adaptor Ø 100 ensures a smooth and secure connection between single wall flues and TWPro twin wall insulated chimney systems. Ideal for solid fuel, gas, and oil appliances such as woodstoves, gas fires, and boilers. It features a 304 grade stainless steel outer layer and a 316 grade stainless steel inner layer, both with a thickness of 0.4mm.
The insulation is made from high-density compressed rockwool, ensuring superior thermal performance. With a 50mm distance to combustibles, this adaptor guarantees safety and reliability. Fully welded for enhanced durability, the TWPro system is HETAS approved and CE marked (EN1856-1 T600 N1 W V2 L50040 G50 & EN1856-1 T200 W V2 L50040 O20).
Installation is straightforward using the TWPro Locking Band for secure connections. This adaptor is perfect for connecting single wall flues or vitreous enamel pipes to the twin wall system.
SKU: 2-100-001
Technical Specifications | |
---|---|
SKU | 2-100-001 |
Adaptor Diameter | 100mm |
Inner Material | 316L Stainless Steel (0.40mm) |
Outer Material | 304 Stainless Steel (0.40mm) |
Insulation | High-density compressed rockwool |
Distance To Combustibles | 50mm |
Approvals | HETAS / CE (EN1856-1 T600 N1 W V2 L50040 G50, EN1856-1 T200 W V2 L50040 O20) |
System | TWPro |
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.
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National Flues Ltd Verdict
This Single Wall to Twin Wall Adaptor Ø 100 is a top-choice product for both retail and trade customers looking for high-quality chimney flue solutions. With our unbeatable prices and reliable nationwide delivery, you can't go wrong with National Flues.
This product is designed to connect single wall appliance outlets to the TWPro twin wall insulated chimney system, ensuring a safe and efficient transition.
National Flues is a premier supplier of fireplaces and flues across the UK, known for unbeatable prices, reliable delivery, and excellent service to both retail and trade customers.
