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Inspection Length 500mm Ø 125 (2-125-020)

Discover TWPro’s Inspection Length 500mm Ø 125 chimney flue pipe, engineered for superior performance with solid fuel, gas, and oil appliances. This premium twin wall flue combines durability, safety, and efficiency, making it an ideal choice for homeowners seeking reliability and peace of mind. Read more...
Now only £141.99
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At a Glance

  • HETAS approved & CE marked
  • Twin wall construction: 304 outer & 316 inner stainless steel
  • Built-in sweeping access with a large rectangular door
  • Insulated with high-density compressed rockwool (200kg/m3)
  • Secure Locking Band system for easy installation
  • 50mm safe distance from combustibles
  • Versatile use with solid fuel and gas/oil 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: sales@nationalflues.com

The Inspection Length 500mm Ø 125 is designed for versatility and durability in your chimney system. This pipe is suitable for use with solid fuel and gas/oil appliances, including wood stoves, gas coal effect fires, and oil and gas boilers. Constructed with an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, both 0.4mm thick, this flue ensures longevity and safety.

It is insulated with compressed rockwool at a density of 200kg/m3 for superb thermal performance. Fully welded, the pipe maintains a safe distance of 50mm from any combustible materials. TWPro's HETAS approval and CE marking underline its high safety and quality standards.

Installing this twin wall insulated chimney pipe is straightforward, thanks to the secure Locking Band system. Drastically reduce your maintenance with its convenient built-in sweeping access, provided via a large rectangular door.

SKU: 2-125-020

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.

Technical Specifications
SKU2-125-020
Product NameInspection Length 500mm Ø 125
Inner Material316L Stainless Steel - 0.40mm thick
Outer Material304 Stainless Steel - 0.40mm thick
InsulationCompressed Rockwool at 200kg/m3
Length500mm
Diameter125mm
ApprovalsHETAS / CE
Installation FeatureLocking Band system with built-in sweeping access
Safe Distance50mm from combustibles
Compatible FuelsWood, Oil, Gas, Low sulphur coal
Installation is straightforward with TWPro’s secure Locking Band system. First, ensure that a minimum safe clearance of 50mm is maintained from any combustible material. Assemble the pipe sections carefully, utilising the built-in locking mechanism to secure each joint. For best results, refer to the detailed installation manual provided with your product. Regular checks should be scheduled to maintain the integrity of the flue pipe, and any signs of damage or wear should be addressed immediately to ensure safety and optimal performance. Always consult the manufacturer's guidelines and local regulations before installation.

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

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

The pipe is insulated with compressed rockwool, which has a density of 200kg/m3, ensuring excellent thermal insulation.

The TWPro Inspection Length 500mm Ø 125 is HETAS approved and CE marked, meeting high safety and quality standards.

Installation is made easy with the Locking Band system, ensuring secure joint connections. Always ensure a 50mm gap to any combustibles.

The built-in sweeping access allows for easy maintenance by providing a large rectangular door to clean and inspect the flue efficiently.

You must maintain a safe distance of 50mm from the outside of the flue to any combustible materials such as wood or plasterboard.

 

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