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National Flues presents the Sflue Insulated Chimney Pipe, a premium solution designed for woodstoves, gas coal effect fires, oil and gas boilers, and other solid fuel appliances. Engineered with high-grade 304 and 316 stainless steel, this chimney flue offers exceptional reliability and longevity, combined with superior thermal performance from its compressed rockwool insulation. Enhance your chimney installation with this top-tier flue pipe and explore a range of optional accessories to complete your system.
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In Stock
£43.99
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Made from dual-layer, high-grade stainless steel (304 outer, 316L inner) for lasting durability
Insulated with high-density compressed rockwool (230kg/m³) for superior thermal performance
Secure 8-barbed twist-lock system with Locking Bands ensures a hassle-free, tight fit
Fully laser welded joints for leak-proof operation
HETAS approved and CE marked, ensuring safety and compliance with industry standards
Maintains a safe 50mm clearance to combustible materials
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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.
The Sflue (2110606) Insulated Chimney Pipe is a robust solution designed for use with solid fuel and gas/oil appliances like woodstoves, gas coal effect fires, and boilers. Featuring a durable outer skin made from 304 grade stainless steel and an inner skin of 316 grade stainless steel, both 0.4mm thick, it ensures longevity and performance. The pipe is insulated with compressed rockwool, offering a density of 230kg/m3, encapsulated within twist-lock couplers for secure fitting.
All components are fully laser welded to guarantee seamless joints. Adhering to safety regulations, it maintains a 50mm distance to combustible materials. Approved by HETAS and CE marked, the product meets the standards indicated by the Designation Number EN1856-1 T450 N1 D V2 L50040 G50.
Installation is straightforward with its 8-barbed twist-lock system and accompanying Locking Bands, ensuring a secure, hassle-free fitting.
SKU: 22-150-013
Technical Specifications
SKU
22-150-013
Item
Pipe 120mm - 152mm u00d8
Designation
EN1856-1 T450 N1 D V2 L50040 G(50)
Inner Material
316L Stainless Steel (0.40mm thick)
Outer Material
304 Stainless Steel (0.40mm thick)
Insulation
Compressed Rockwool (230kg/mu00b3)
Installation Mechanism
8-Barbed Twist-Lock Couplers & Locking Bands
Approvals
HETAS / CE
Clearance
50mm to combustibles
Warranty
15 Years
Application
Suitable for solid fuel, wood, oil, gas, and low sulphur coal appliances
Before installation, ensure that all combustible materials are at least 50mm away from the flue. Begin by securely joining the 8-barbed twist-lock couplers, ensuring the Locking Bands are properly fitted to hold each section in place. Check that the compressed rockwool insulation is uniformly distributed and fully encapsulated once the couplers are connected. It is advisable to double-check all links for security and alignment to avoid any gaps. Always follow the manufacturer's safety guidelines, and if uncertain, consult a professional installer to ensure compliance with local building and safety regulations.
This pipe is suitable for use with woodstoves, gas coal effect fires, oil and gas boilers, and other solid fuel appliances.
The outer skin is made from 304 grade stainless steel and the inner skin from 316 grade stainless steel. Both are 0.4mm thick to ensure durability.
Yes, it is insulated with compressed rockwool, providing a density of 230kg/m3 for optimal thermal efficiency.
The Sflue pipe uses an 8-barbed twist-lock system secured with a Locking Band. It is designed for ease of installation while ensuring a secure fit.
Yes, when installed correctly, the Sflue pipe maintains a safe distance of 50mm from combustible materials like wood and plasterboard.
Yes, the Sflue pipe is HETAS approved and CE marked, confirming it meets stringent safety and performance standards.
The twist-lock couplers ensure a secure, easy-to-connect fitting and encapsulate the insulation for added safety and performance.
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.
Choosing the right chimney pipe is crucial for ensuring the safety and efficiency of your heating appliance. The Sflue Insulated Chimney Pipe by National Flues is designed to meet the demanding needs of modern installations while providing a robust, durable solution for a variety of heating systems that utilize solid fuels such as wood, oil, or gas. In this guide, we will walk through the product’s features and benefits, installation instructions, safety guidelines, and additional accessories that can enhance your setup. This comprehensive overview aims to resolve your queries and guide you confidently through your purchase decision.
Why Choose the Sflue Insulated Chimney Pipe?
Premium Construction: The pipe is constructed with a dual-layer system featuring 304 grade stainless steel on the outer layer and 316L grade stainless steel on the inner layer. This sophisticated combination ensures that the product is not only corrosion resistant but also enduringly robust. For anyone looking to upgrade or replace their existing chimney system, the superior material ensures longevity and less frequent need for replacement.
Advanced Insulation: Insulated with compressed rockwool at a density of 230kg/m³, the Sflue affords enhanced thermal efficiency. This insulation is critical in maintaining the optimal temperature within the flue, ensuring that exhaust gases are safely and effectively channeled away from your living spaces. This feature also plays a role in improving energy efficiency, as it helps maintain overall system performance in varying weather conditions.
Secure Connection Mechanism: Featuring an 8-barbed twist-lock system along with Locking Bands, the installation of the Sflue is straightforward and secure. Each joint is fully laser welded, ensuring a leak-proof, long-lasting fit. This design simplifies the installation process, making it a favourite among both DIY enthusiasts and professional installers.
Product Specifications and Performance
When considering a chimney pipe, it is vital to assess the technical specifications that guarantee performance and compliance with industry standards. The Sflue Insulated Chimney Pipe comes with a warranty of 15 years, a testament to its durability and quality. The product is fully HETAS approved and CE marked, meeting rigorous safety standards essential in today’s building regulations. Among the critical features, the built-in safe clearance of 50mm to combustible materials ensures that the product can be used in a variety of installations while reducing risks of fire hazards.
Safety and Compliance
Safety is paramount in any heating system installation. The Sflue pipe is engineered to sustain a 50mm clearance from combustible materials, safeguarding nearby structures and reducing the risk of overheating. By complying with both HETAS and CE standards, it provides assurance that every component of the pipe adheres to strict safety regulations. This means you can trust in the product’s performance and rely on its robust build to stand up to the challenges posed by daily use, whether in homes or commercial settings.
Installation Guidelines
Before starting the installation, it is important to plan your chimney layout and ensure that the installation area adheres to local safety codes. Clear all potential obstructions and verify that the installation space is free from materials that might be adversely affected by elevated temperatures. Carefully follow the step-by-step process as outlined in the installation manual:
- Step 1: Assemble the pipe sections using the provided 8-barbed twist-lock couplers.
- Step 2: Secure each joint with Locking Bands, ensuring a firm and even connection across all sections.
- Step 3: Check the alignment and uniformity of the compressed rockwool insulation, ensuring there are no gaps at the joints.
- Step 4: Confirm the final assembled pipe maintains a consistent 50mm gap from any combustible structures.
Using additional accessories, such as extra locking bands or sealing compounds, can further enhance the safety and longevity of your installation.
Additional Accessories
While the Sflue Insulated Chimney Pipe is a complete solution, complementary accessories can further optimise performance and installation ease. Consider exploring options like additional sealing tapes, adapter pieces, and optional exhaust system supports to customise your chimney system according to your specific needs. These accessories are designed to integrate seamlessly with the Sflue, enhancing overall efficiency and making maintenance easier in the long run.
Final Thoughts
The Sflue Insulated Chimney Pipe by National Flues embodies a perfect blend of premium material quality, advanced insulation, and user-friendly installation mechanisms. Whether you are a homeowner undertaking a DIY project or a professional installer seeking a reliable component for your clients, this product stands out as a robust and safe solution. With its built-in safety features, certified approvals, and the added benefit of optional accessories to complete your setup, the Sflue is ultimately a smart investment for ensuring your heating system runs safely and efficiently.
Elevate your installation experience and secure the performance you deserve. Add to cart or call 01670 206 999.
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