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Adjustable Pipe 250-350mm Ø 80 (2-80-016)

National Flues presents our Adjustable Twin Wall Insulated Chimney Flue Pipe, a premium solution designed for modern wood stoves, boilers, and gas fireplaces. This durable and versatile flue, crafted from high-grade stainless steel with superior rockwool insulation, meets top industry standards. Read more...
Adjustable Pipe 250-350mm Ø 80
IN STOCK
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Now only £56.99
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At a Glance

  • Adjustable length from 250mm to 350mm for a perfect fit
  • Dual-layer construction with 304 and 316 stainless steel
  • Premium compressed rockwool insulation (200kg/m³) for optimal thermal performance
  • HETAS Approved and CE marked for assured safety and reliability
  • Secure, screwless installation using a Locking Band
  • Versatile compatibility with wood stoves, gas fireplaces, and boilers

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

Our Adjustable Twin Wall Insulated Chimney Flue Pipe, with an adaptable length ranging from 250mm to 350mm, is a versatile solution for your chimney systems. This flue pipe is engineered for a variety of solid fuel and gas/oil appliances including wood stoves, gas fireplaces, and boilers. The outer skin is crafted from 304 grade stainless steel with a thickness of 0.4mm, while the inner skin features 316 grade stainless steel of the same thickness.

This dual-layer construction, coupled with compressed rockwool insulation boasting a density of 200kg/m3, ensures durability and optimal thermal performance.Each component is fully welded, offering a secure, seamless installation. The TWPro Twin Wall Insulated Chimney system, designed for safety and efficiency, maintains a mandatory 50mm clearance from combustible materials. This product is both HETAS Approved and CE marked under designations EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20.Securing the parts together is straightforward, requiring no screws.

Simply use the Locking Band to fix the pipe in place. Whether you are a DIY enthusiast or a professional installer, our adjustable pipe meets the highest standards for chimney flue solutions.

SKU: 2-80-016

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
ModelAdjustable Twin Wall Insulated Chimney Flue Pipe
Adjustable Length250-350 mm
Diameter80 mm
Inner Material316L Stainless Steel (0.40mm thick)
Outer Material304 Stainless Steel (0.40mm thick)
InsulationCompressed Rockwool (200kg/m³)
CertificationsHETAS Approved, CE Marked (EN1856-1 T600 N1 W V2 L50040 G50, EN1856-1 T200 W V2 L50040 O20)
Clearance50mm from combustible materials
Installation MechanismLocking Band (screwless installation)
Compatible FuelsWood, Oil, Gas, Low sulphur coal
Installation is straightforward: begin by adjusting the pipe length to your required measurement between 250mm and 350mm using the body-soluble ceramic blanket which can be easily trimmed. Ensure proper alignment before using the Locking Band to secure the components together. Maintain a minimum clearance of 50mm from any combustible surfaces. It is advisable to check local building regulations and consult with a professional installer if uncertain. Always inspect the flue components for any signs of wear prior to installation.

The adjustable flue pipe is suitable for solid fuel and gas/oil appliances such as wood stoves, gas coal effect fires, and oil/gas boilers.

The outer skin is made from 304 grade stainless steel, and the inner skin is constructed from 316 grade stainless steel, both with a thickness of 0.4mm.

The pipe features compressed rockwool insulation with a density of 200kg/m3.

Yes, the TWPro system is HETAS Approved and CE marked with designations EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20.

The parts are secured together using a Locking Band, maintaining a 50mm distance from any combustible materials. No screws are required for the installation.

The insulation has a density of 200kg/m3, ensuring great thermal performance.

A minimum distance of 50mm from the flue's exterior to any combustible material must be maintained.

 

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