Pipe 100mm Ø 100 (2-100-018)
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    Fast deliveryWednesday, November 5th*
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    Price matchWe’ll match like-for-like
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                Delivery Information* +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, November 5th. 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.
At a Glance
- Twin wall insulated construction for excellent thermal performance
 - Durable build with 304 outer and 316 inner stainless steel
 - HETAS approved and CE marked for safety and reliability
 - High-density compressed rockwool insulation (200kg/m³) for efficient heat retention
 - Quick and secure Locking Band installation system
 
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: sales@nationalflues.com
                    
- Details
 - Specs
 - Install
 - FAQs
 
The 100mm TWPro Twin Wall Insulated Chimney Flue Pipe is designed for use with solid fuel and gas/oil appliances, such as woodstoves, gas coal effect fires, and boilers. Featuring an outer skin made from 304 grade stainless steel and an inner skin from 316 grade stainless steel, both parts are 0.4mm thick. The insulation is composed of compressed rockwool with a density of 200kg/m³, ensuring excellent thermal performance.
All components are fully welded, enhancing durability and safety. It is crucial to maintain a 50mm distance from combustibles. This HETAS approved and CE marked pipe stands up to rigorous quality standards with designations EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20.
Installation is straightforward with a Locking Band system, providing ease and security.
SKU: 2-100-018
| Technical Specifications | |
|---|---|
| Pipe Size | 100mm | 
| Outer Material | 304 Stainless Steel | 
| Inner Material | 316 Stainless Steel | 
| Material Thickness | 0.4mm each | 
| Insulation | Compressed Rockwool (density 200kg/m³) | 
| Approvals | HETAS / CE | 
| Required Clearance | 50mm from combustibles | 
| Designations | EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20 | 
| System | TWPro | 
| Effective Installed Length | 65mm | 
| Installation | Locking Band system | 
What our experts say!
"The 100mm TWPro Twin Wall Insulated Chimney Flue Pipe is a top-notch product in our range. It’s robust, reliable, and versatile. Whether you're installing it in a home or a commercial setting, its quality is assured. We seldom beat on price and pride ourselves on a dependable delivery service across the UK. Available for both retail and trade customers."
The 100mm TWPro Twin Wall Insulated Chimney Flue Pipe is intended for safe and effective venting of solid fuel, gas, and oil appliances.
National Flues is a leading supplier of high-quality fireplaces and flues, serving both retail and trade customers across the UK with reliable products and exceptional service.