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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 solut Read more...
The price you pay today £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 Thursday, June 5th. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. 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. 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.

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.

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