Sflue (2141005) - Pipe 500mm - 127mm Ø
At a Glance
- Constructed from premium 304 and 316 stainless steel with 0.40mm thickness
- Insulated with high-density compressed rockwool (230kg/m³) for optimal heat retention
- Innovative 8-barbed twist-lock mechanism ensures straightforward installation
- Certified HETAS and CE approved, meeting stringent safety standards
- Designed for compatibility with wood, oil, gas, and low sulphur coal appliances

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]
- Info
- Specs
- Install
- FAQs
The Sflue (2141005) - 500mm Pipe with a 127mm (5-inch) diameter is specifically designed for use with solid fuel and gas/oil appliances, including woodstoves, gas coal-effect fires, and oil and gas boilers. Constructed with high-grade materials, the outer skin is made from 304-grade stainless steel and the inner skin from 316-grade stainless steel. Both skins boast a thickness of 0.4mm for enhanced durability.
The pipe is insulated with compressed rockwool, offering a density of 230kg/m³, encapsulated within the twist-lock couplers. This ensures optimum heat retention and safety as it maintains a distance of 50mm from combustible materials.Sflue is rigorously tested and approved, holding a HETAS certification and CE marking. The designation number EN1856-1 T450 N1 D V2 L50040 G50 speaks to its adherence to stringent standards, ensuring you get a high-quality, reliable product.
Installation is straightforward with the 8-barbed twist lock mechanism which requires no complex tools—just secure each section with a locking band. The Sflue system is perfect for anyone seeking efficient and safe chimney flues.
SKU: 22-125-011
Technical Specifications | |
---|---|
Product ID | 2901 |
SKU | 22-125-011 |
Length | 500mm |
Diameter | 127mm |
Inner Material | 316L Stainless Steel (0.40mm thick) |
Outer Material | 304 Stainless Steel (0.40mm thick) |
Insulation | Compressed Rockwool (230kg/mu00b3) |
System | Sflue |
Approvals | HETAS, CE |
Installation | 8-barbed twist lock mechanism with locking band |
Distance To Combustibles | 50mm |
Applicable Fuels | Wood, Oil, Gas, Low sulphur coal |
Warranty | 15 Years |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, April 8th. 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. If you find it cheaper within 48 hours, we'll refund the difference.
Compatible and other products that may be of interest...
National Flues Ltd Verdict
At National Flues, we're thrilled with the Sflue (2141005) 500mm Pipe. This top-notch product is HETAS Approved and CE marked, ensuring both safety and quality. Its robust construction and reliable insulation make it a superior choice for both retail and trade customers nationwide. Enjoy secure online payments and our nearly unbeatable prices.
The Sflue (2141005) 500mm Pipe is designed for venting solid fuel and gas/oil appliances safely and efficiently, suitable for use in residential and commercial heating systems.
National Flues is a leading supplier of fireplaces and flues in the UK, dedicated to providing high-quality products at nearly unbeatable prices. We offer reliable nationwide delivery, catering to both retail and trade customers.
