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National Flues presents the Sflue adjustable pipe 500-850mm for 127mm diameter applications, perfect for solid fuel, wood stoves, gas, and oil appliances. This robust and versatile chimney component meets strict EN1856-1 standards while delivering high performance and safety. Discover our premium range of flue systems and accessories designed to enhance your home heating solutions.
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In Stock
£208.49
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Adjustable pipe length from 500mm to 850mm
Durable twin-wall construction using 304-grade (outer) and 316-grade (inner) stainless steel
HETAS approved and CE marked for safety and compliance
Compressed rockwool insulation (230kg/m³) for excellent heat resistance
Secure 8-barbed twist lock mechanism with Locking Band for ease of assembly
Minimum 50mm clearance to combustibles ensures a safe installation
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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.
Ideal for solid fuel and gas/oil appliances, the Sflue (2141405) adjustable pipe extends from 500mm to 850mm, providing the flexibility you need when standard lengths fall short. Constructed with a 0.4mm thick outer skin of 304-grade stainless steel and a 0.4mm thick inner skin of 316-grade stainless steel, this pipe promises durability and high performance. Compressed rockwool insulation ensures robust heat resistance, with a commendable density of 230kg/m³ encapsulated within twist-lock couplers.
Fully laser welded and HETAS approved, this CE-marked product ensures a secure and compliant installation. Designed with an 8-barbed twist lock mechanism, the Sflue twin wall insulated chimney parts are easy to secure using a Locking Band. Ensure a 50mm clearance from combustibles for safe installation.
Designation Number: EN1856-1 T450 N1 D V2 L50040 G50.
SKU: 22-125-014
Technical Specifications
SKU
22-125-014
Adjustable Length
500-850 mm
Pipe Diameter
127 mm
Outer Material
304-grade Stainless Steel (0.40mm thick)
Inner Material
316-grade Stainless Steel (0.40mm thick)
Insulation
Compressed Rockwool, 230kg/mu00b3
Certifications
HETAS, CE (EN1856-1 T450 N1 D V2 L50040 G50)
Installation Clearance
50mm
Warranty
15 Years
Lock Mechanism
8-barbed twist lock with Locking Band
- Ensure all installations comply with local building regulations and HETAS guidelines
- Maintain a minimum clearance of 50mm from any combustible materials
- Measure and adjust the pipe length to suit your chimney arrangement before inserting the separate insulating material
- Connect sections using the 8-barbed twist lock system and secure them with the Locking Band
- Follow all provided instructions from National Flues for a safe, efficient setup
- Double-check connections for a secure, leak-free installation
The Sflue adjustable pipe is suitable for use with solid fuel and gas/oil appliances, including wood stoves, gas coal effect fires, and oil and gas boilers.
The pipe features a 0.4mm thick outer skin of 304-grade stainless steel and a 0.4mm thick inner skin of 316-grade stainless steel. It also includes compressed rockwool insulation.
Yes, the Sflue adjustable pipe is HETAS approved and CE marked. It meets the EN1856-1 T450 N1 D V2 L50040 G50 standards.
The Sflue adjustable pipe features an 8-barbed twist lock system. Parts are secured together using a Locking Band. Ensure a 50mm distance from any combustible materials.
The separate insulating material is supplied for insertion into the annulus once the installed length has been determined, ensuring proper insulation and fit.
The insulation is compressed rockwool with a density of 230kg/m³, providing robust heat resistance.
Maintaining a 50mm clearance to combustibles, such as wood and plasterboard, ensures that the installation is safe and compliant with regulatory standards.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Wednesday, April 30th.
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 on a retail basis. Give us a call if you find it cheaper and want to buy from us.
The Sflue adjustable pipe is a revolutionary solution for those who require a flexible and high-performing chimney component. National Flues brings you this adjustable pipe designed specifically for 127mm diameter applications, ideal for solid fuel, wood stoves, gas, and oil appliances. Its innovative design and robust construction provide a reliable connection to your chimney system, while ensuring compliance with EN1856-1 standards.
Product Features
- Adjustable Length: With a range of 500mm to 850mm, this pipe can adapt to various installation requirements without the need for additional modifications. This flexibility gives installers the freedom to achieve a perfect fit regardless of pre-existing chimney dimensions.
- Superior Construction: Featuring a twin-wall design with an outer layer of 304-grade stainless steel and an inner layer of 316-grade stainless steel, the pipe is built to withstand harsh conditions while maintaining an attractive finish.
- Enhanced Insulation: The compressed rockwool insulation, with a density of 230kg/m³, ensures that the pipe can manage high temperatures efficiently. This not only protects surrounding structures but also contributes to energy efficiency.
- Secure Fit: The 8-barbed twist lock mechanism provides a dependable connection between sections. The inclusion of a Locking Band further secures the assembly, making the installation process straightforward and reliable.
- Safety Compliance: Designed to meet strict safety standards, the product is HETAS approved and CE marked. Always maintaining a 50mm clearance from combustibles, this pipe supports a safe and compliant installation environment.
Why Choose the Sflue Adjustable Pipe?
When selecting a flue system component, it is vital to balance performance, flexibility, and safety. The Sflue adjustable pipe stands out from the competition for several reasons. First, its adjustable nature eliminates the frustrations and delays associated with standard, fixed-length flues. Second, the use of quality materials ensures longevity and resistance to corrosion. Whether you are a DIY enthusiast or a professional installer, the benefits of using a product that offers both adaptability and safety cannot be overstated.
Addressing Common Concerns
Some may worry about the complexity of installation or whether the adjustable mechanism will compromise the pipe’s integrity. With National Flues, these concerns are addressed through rigorous design and testing. The laser welded joints guarantee a secure fit, while the 8-barbed twist lock system simplifies the process. Moreover, the 50mm clearance requirement ensures that even if there is slight deviation during installation, the safety of the system is not compromised. Each step is designed to offer maximum performance with minimal risk.
Installation Advice
Installing the Sflue adjustable pipe requires careful attention to detail. Ensure that you follow all provided instructions and HETAS guidelines. Begin by measuring the required length for your chimney setup, then adjust the pipe accordingly. Insert the separate insulating material into the annulus once the ideal length is determined. The pipe sections should be connected using the twist lock mechanism and secured with the Locking Band to prevent any accidental disconnections. It is also recommended to regularly inspect the installation to ensure that all connections remain secure and that there is no degradation in the insulation over time.
Long-term Value and Performance
Choosing the Sflue adjustable pipe means investing in a product that promises both performance and longevity. The use of premium stainless steel not only looks elegant but also withstands the wear and tear of regular use, ensuring that your installation remains safe and efficient for many years. The robust insulation and secure locking mechanisms further add to the pipe’s durability. Whether you are upgrading an existing system or installing a new one, this adjustable pipe provides a cost-effective solution by reducing the need for frequent maintenance and replacements.
Overcoming Objections
Buyers might be hesitant if they perceive adjustable systems as less reliable than fixed-length alternatives. However, the Sflue adjustable pipe is engineered to offer stability and strength that rivals any fixed component in the market. Our product has been designed to meet and exceed industry standards, ensuring that every installation is both secure and compliant. Additionally, the flexibility offered by the adjustable length means that installers can avoid the often costly and wasteful process of custom-fitting, saving both time and money in the long run.
Conclusion
In summary, the Sflue adjustable pipe by National Flues is the ideal solution for any chimney installation requiring flexibility and robust performance. Its superior construction, revolutionary adjustable design, and ease of assembly make it a must-have for both new installations and upgrades. The product’s adherence to rigorous safety standards provides an extra layer of confidence, ensuring that your home remains secure and efficient. For those seeking to combine quality with value, this adjustable pipe serves as proof that high performance and practicality can coexist seamlessly in a single product. Add to cart now or call 01670 206 999.
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