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Sflue (2141105) - Pipe 300mm - 127mm Ø (22-125-012)

National Flues proudly presents the Sflue Pipe 300mm - 127mm Ø – a premium, high-performance chimneypipe designed for both solid fuel appliances and gas/oil systems. Engineered from top-grade stainless steel and featuring advanced insulation technology, this rigid fixed pipe ensures reliable and safe operation within your chimney system. Whether you're upgrading your existing flue or installing a new one, this product offers seamless integration. Discover a reliable, efficient, and durable solution that aligns with stringent CE and HETAS standards – the ultimate choice for modern home heating systems.
Now only £70.99
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At a Glance

    High-quality stainless steel construction (inner 316L & outer 304 grade, both 0.40mm thick)

    Compressed rockwool insulation (230kg/m³) for efficient heat retention

    Fully laser welded, ensuring robust and reliable performance

    CE marked and HETAS approved for safety and compliance

    Twist-lock couplers with 8 barbed design for secure connections

    50mm clearance to combustibles to guarantee installation safety

    15-year warranty providing long-term peace of mind

Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, July 21st. This is based on current lead times for this product. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. We can sometimes 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 and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

Best 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.

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: [email protected]

Ideal for use with solid fuel and gas/oil appliances, the Sflue Pipe 300mm - 127mm Ø is designed to perform seamlessly with woodstoves, gas coal effect fires, oil and gas boilers, and other solid fuel appliances. Construction features include an outer skin made from 304 grade stainless steel (0.4mm thick), and an inner skin fabricated from 316 grade stainless steel (0.4mm thick). The pipe boasts compressed rockwool insulation with a density of 230kg/m3, encapsulated within twist-lock couplers to provide top-tier heat resistance and efficiency.

Fully laser welded and CE marked, this product meets the EN1856-1 T450 N1 D V2 L50040 G50 standards and has earned HETAS approval. During installation, secure the 8 barbed twist lock twin wall insulated chimney parts with a Locking Band, while maintaining a 50mm distance from any combustible materials to ensure safety.

SKU: 22-125-012

Technical Specifications
SKU22-125-012
DimensionsPipe 300mm with 127mm u00d8
Inner Material316L Stainless Steel (0.40mm thick)
Outer Material304 Stainless Steel (0.40mm thick)
InsulationCompressed Rockwool (230kg/mu00b3)
Connection8 barbed twist-lock couplers
CertificationsCE Marked, HETAS Approved
StandardEN1856-1 T450 N1 D V2 L50040 G50
Clearance50mm from combustible materials
Warranty15 Years
Installation is straightforward but must be executed with care. Secure the 8 barbed twist-lock twin wall insulated chimney parts using a Locking Band. Ensure you maintain a minimum distance of 50mm from any combustible materials, such as wood or plasterboard, to comply with safety regulations. Follow the manufacturer's instructions carefully and consult a professional installer if uncertain. Additional optional accessories, such as dedicated wall bands or additional insulation components, are also available to optimise and secure your installation further.

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

It features an outer skin made of 304 grade stainless steel and an inner skin made of 316 grade stainless steel, both 0.4mm thick.

The flue is insulated with compressed rockwool, providing a density of 230kg/m3, encapsulated within the twist-lock couplers.

Yes, the Sflue Pipe 300mm - 127mm Ø is both CE marked and HETAS approved, ensuring high standards of safety and quality.

Installation involves securing the 8 barbed twist lock twin wall insulated chimney parts with a Locking Band. Maintain a 50mm clearance from any combustible materials.

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

This product meets the EN1856-1 T450 N1 D V2 L50040 G50 standards, indicating its high performance and reliability.

What our experts say!

"The Sflue Pipe 300mm - 127mm Ø is a top-notch choice for anyone seeking robust and reliable flue systems. Perfect for both retail and trade customers, National Flues ensures you get this high-quality product with prompt nationwide delivery."

The Sflue Pipe 300mm - 127mm Ø is designed for connecting solid fuel and gas/oil appliances to a chimney system, ensuring safe and efficient heat output.

National Flues is a leading supplier of quality fireplaces and flues in the UK. Known for excellent prices, reliable delivery, and a wide range of products suitable for both retail and trade customers.

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