We use cookies to ensure a smooth, secure, and ever-improving experience on our website. By continuing to browse, you agree to our use of cookies as detailed in our Cookie Policy. Enjoy your visit and let us now if you need any help!
Cookie Preferences
We use different types of cookies for various purposes. Please select which you allow:
Explore the unrivalled quality of the Sflue (2144005) Adjustable Pipe from National Flues. This adjustable chimney flue offers innovative design and superior adaptability, making it the ideal choice for bespoke chimney installations. Manufactured using robust stainless steel and high-density insulation, the Sflue Adjustable Pipe is engineered to deliver a consistent and safe performance, whether you are installing it for a solid fuel stove, oil boiler, or gas appliance.
Hover to Zoom / Click for Gallery
In Stock
£109.49
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Telescopic adjustable length (200-325mm) to fit unique installations
Robust construction with dual stainless steel layers (304 outer, 316 inner)
High-density compressed Rockwool insulation for enhanced safety
Secure 8-barbed twist-lock coupler system with an included Locking Band
HETAS Approved and CE marked for industry-standard safety compliance
Designed for compatibility with solid fuel, gas, oil, and low sulphur coal appliances
Backed by a 15-year warranty for long-lasting reliability
×
Email Product
Enter your email address to send the product details:
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.
The Sflue (2144005) Adjustable Pipe offers a flexible telescopic length ranging from 200mm to 325mm, making it an ideal choice when standard flue dimensions aren't suitable. This pipe is constructed with an outer skin of 304 grade stainless steel, ensuring durability and longevity, while the inner skin is made from 316 grade stainless steel. With a thickness of 0.4mm for both inner and outer skins, you can count on its robustness.
The pipe features a high-density compressed Rockwool insulation at 230kg/m3, encapsulated within twist-lock couplers for added safety. Fully laser welded for a seamless finish, this flue pipe is HETAS Approved and CE marked, bearing the EN1856-1 T450 N1 D V2 L50040 G50 designation. Installation is straightforward, thanks to its 8 barbed twist-lock system and the inclusion of a Locking Band for secure connection.
Ensure a 50mm distance from any combustible material during installation for added safety.
SKU: 22-125-016
Technical Specifications
SKU
22-125-016
Product Name
Sflue (2144005) Adjustable Pipe
Adjustable Length
200-325mm
Diameter
127mm
Outer Material
304 Stainless Steel, 0.40mm thickness
Inner Material
316 Stainless Steel, 0.40mm thickness
Insulation
High-density compressed Rockwool (230kg/m3)
Coupler
8-barbed twist-lock system with Locking Band
Approvals
HETAS, CE (EN1856-1 T450 N1 D V2 L50040 G50)
Fuel Compatibility
Wood, Oil, Gas, Low sulphur coal
Installation Clearance
50mm from combustibles
Warranty
15 Years
1. Before installation, ensure the installation area maintains a minimum of 50mm clearance from any combustible materials such as wood, plasterboard, or insulation.
2. Begin by assembling the telescopic sections, verifying that the adjustable pipe extends smoothly from 200mm to 325mm.
3. Connect each section using the 8-barbed twist-lock coupler system. Ensure that each twist-lock connection is fully engaged for a secure fit.
4. Use the included Locking Band to reinforce each connection, preventing accidental disconnection during operation.
5. Double-check all connections once assembled to ensure there are no loose fittings. Safety and efficiency are paramount.
6. Follow the manufacturer’s guidelines for the safe clearance around the flue, and secure any additional insulation if necessary.
7. Finally, conduct a safety inspection to guarantee that all installation standards are met before use.
The Sflue (2144005) is suitable for use with solid fuel and gas/oil appliances, including woodstoves, gas coal effect fires, and oil and gas boilers.
This adjustable pipe features an outer skin made from 304 grade stainless steel and an inner skin made from 316 grade stainless steel, both with a thickness of 0.4mm.
Yes, it is insulated with compressed Rockwool, offering a density of 230kg/m3, encapsulated within the twist-lock couplers.
Absolutely, the Sflue (2144005) is HETAS Approved and CE marked, coming with the designation number EN1856-1 T450 N1 D V2 L50040 G50.
The Sflue (2144005) should be installed using its 8-barbed twist-lock system secured by a Locking Band. Make sure to maintain a 50mm distance from combustible materials such as wood or plasterboard.
The twist-lock system is an 8-barbed design that allows for secure and straightforward connection between chimney parts. This ensures a tight fit and helps in maintaining durability.
Always maintain a 50mm distance from the flue’s outer surface to any combustible materials, and ensure all connections are secure using the provided Locking Band.
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.
Comprehensive Buyer’s Guide to the Sflue (2144005) Adjustable Pipe
The Sflue (2144005) Adjustable Pipe represents a significant advancement in chimney technology. Whether you are upgrading an existing chimney system or embarking on a new installation, this guide will provide you with all the necessary information to make an informed decision.
Understanding the Product
Adjustability and Versatility: The adjustable pipe is designed with a telescopic mechanism that allows it to extend from 200mm to 325mm. This unique feature ensures that you can tailor the flue length to suit your specific installation requirements, making it a perfect solution when standard flue dimensions simply won’t fit your setup.
Durability and Construction: Crafted with an outer layer of 304 grade stainless steel and an inner lining of 316 grade stainless steel, the Sflue Adjustable Pipe combines strength and corrosion resistance. This dual construction is particularly beneficial in environments where the flue is exposed to various fuels such as wood, oil, gas, or low sulphur coal, ensuring long-lasting performance.
High-density Insulation: One of the key benefits is the inclusion of high-density compressed Rockwool insulation with a density of 230kg/m3. This insulation not only enhances safety by reducing the risk of overheating but also improves energy efficiency by maintaining optimal thermal performance.
Installation Essentials
Safe and Secure: The installation of the Sflue Adjustable Pipe is simplified thanks to its 8-barbed twist-lock coupler system, which provides a quick and secure connection between the flue sections. Always ensure to maintain a 50mm distance from any combustible material to guarantee safety and compliance with installation standards.
Step-by-Step Guidance: The installation process is user-friendly, making it ideal for both professionals and keen DIY enthusiasts. Follow the manufacturer’s instructions closely, from assembling the telescopic sections to securing the Locking Band that prevents accidental disconnection.
Addressing Common Objections
What if my chimney is irregular in shape?
The adjustable nature of the Sflue (2144005) means that even unconventional chimney sizes can be accommodated. The telescopic feature allows for a customised fit, reducing the need for additional modifications or custom fittings.
Is the installation process complicated?
Not at all. The twist-lock coupler system is designed for ease of use, helping you to assemble the flue quickly and securely. Detailed installation guidelines and safety instructions are provided to ensure that every step is clear and manageable, even for those with limited experience.
How reliable is the product long-term?
With a construction that uses high-quality stainless steel and high-density Rockwool insulation, coupled with rigorous HETAS and CE approvals, this product is built to last. It comes with a robust 15-year warranty, providing confidence and peace of mind regarding its long-term reliability and safety.
Benefits and Features in Detail
- Customisable Length: The telescopic design provides the flexibility to adapt the pipe to your specific chimney dimensions. This means fewer modifications and a more secure fit.
- Superior Materials: The dual-layer stainless steel construction ensures that the flue is robust, durable, and resistant to the corrosive effects of various fuels. This minimizes maintenance needs and extends the life of your installation.
- Enhanced Safety: High-density Rockwool insulation is crucial for maintaining safe temperatures, reducing heat loss, and ensuring that the system operates efficiently.
- User-Friendly Installation: The 8-barbed twist-lock mechanism along with the Locking Band streamline the installation process, making it easier and faster to achieve a secure assembly.
- Industry Approvals: With HETAS approval and CE marking, the flue meets all necessary safety standards, giving you confidence in its performance and reliability.
Why Choose National Flues?
Choosing National Flues means opting for quality, reliability, and exceptional customer service. Our Sflue (2144005) Adjustable Pipe is engineered to provide efficient and safe chimney solutions, ensuring that your heating appliances operate at peak performance. We stand behind our product with competitive pricing and a commitment to delivering excellence, whether you are a retail customer or a trade professional.
Our detailed buyer’s guide is designed not only to help you understand the technical benefits and ease of installation but also to address any concerns about product compatibility and long-term durability. We emphasise the importance of adhering to strict safety protocols and using high-quality materials, which is why our product meets and exceeds industry standards.
National Flues is proud to offer products that are both innovative and dependable, helping you achieve a seamless installation and reliable performance for your chimney system. Every feature, from the adjustable length to the secure twist-lock mechanism, has been considered to deliver a superior product that adds value, safety, and efficiency to your home or commercial establishment.
Experience the difference with the Sflue (2144005) Adjustable Pipe and invest in a product built to last. With clear installation instructions, high-quality materials, and a commitment to safety, what more could you ask for? Buy now or call 01670 206 999.
Compatible and other products that may be of interest...
