Sflue (2141406) - Adjustable Pipe 500-850mm - 152mm Ø
At a Glance
- Adjustable length (500-850mm) for versatile installations
- 152mm diameter for optimal performance
- Dual stainless steel construction (304 outer & 316 inner, both 0.40mm thick) ensures durability
- High-density compressed rockwool insulation (230kg/m³) for superior thermal efficiency
- 8-barbed twist lock system with locking band for secure connections
- HETAS approved and CE marked for top safety standards
- Suitable for wood, oil, gas appliances, and low sulphur coal

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 Adjustable Pipe 500-850mm with a 152mm diameter is meticulously designed for use with a range of solid fuel and gas/oil appliances, including wood stoves, gas coal effect fires, and oil and gas boilers. Constructed with 304 grade stainless steel outer skin and 316 grade stainless steel inner skin, both 0.4mm thick, this pipe ensures durability and resistance to corrosion. The insulation comprises high-density compressed rockwool (230kg/m³), encapsulated within twist-lock couplers, and fully laser welded for robust performance.
Maintaining a safe distance of 50mm from combustibles is crucial for safe installation. It's HETAS approved and CE marked, bearing the designation number EN1856-1 T450 N1 D V2 L50040 G50, asserting its high safety and quality standards. The 8-barbed twist lock system ensures secure connections, enhanced by a locking band for added stability.
This adjustable pipe offers flexibility where standard lengths fall short, with additional insulating materials provided for custom fitting.
SKU: 22-150-014
Technical Specifications | |
---|---|
SKU | 22-150-014 |
Adjustable Length | 500-850mm |
Diameter | 152mm |
Inner Material | 316L Stainless Steel (0.40mm thick) |
Outer Material | 304 Stainless Steel (0.40mm thick) |
Insulation | High-density compressed rockwool (230kg/mu00b3) |
Coupling | 8-barbed twist lock system with locking band |
Approvals | HETAS / CE |
Designation | EN1856-1 T450 N1 D V2 L50040 G50 |
Minimum Clearance | 50mm from combustibles |
Warranty | 15 Years |
Suitable Fuels | Wood, Oil, Gas, Low sulphur coal |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, April 4th. 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 proud to offer the Sflue Adjustable Pipe 500-850mm - 152mm Ø. It's a top choice for both retail and trade customers due to its high construction standards and versatility. With our unbeatable prices and reliable nationwide delivery, it's a valuable addition to any heating system.
The Sflue Adjustable Pipe is designed to connect solid fuel and gas/oil appliances to flue systems, providing a flexible solution where standard length pipes are not suitable.
Sflue is a reliable provider of high-quality chimney and flue systems, known for their durability and robust performance in both residential and commercial applications.
