Sflue Black (2117306B) - Cone Top - Ø 152
At a Glance
- - Robust stainless steel construction (304 outer, 316 inner)
- - Compressed rockwool insulation for superior thermal performance
- - Easy and secure 8-barbed twist-lock couplers
- - Fully laser welded for enhanced durability and safety
- - HETAS approved and CE marked for trusted quality
- - Versatile compatibility with woodstoves, boilers, and gas coal effect fires

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 Black (2117306B) - Cone Top - Ø 152 is expertly designed for a variety of solid fuel and oil/gas appliances, including woodstoves, gas coal effect fires, and boilers. Constructed with a durable outer skin of 304-grade stainless steel and an inner skin of 316-grade stainless steel, each 0.4mm thick, this flue is built to last. The insulation, made from compressed rockwool with a density of 230kg/m3, is encapsulated within twist-lock couplers, ensuring maximum efficiency and safety.
Fully laser welded for robustness, this chimney flue maintains a safe distance of 50mm from any combustible materials. HETAS Approved and CE marked, the Sflue system is easy to install with an 8-barbed twist-lock design secured by a locking band, making it a reliable choice for both trade and retail customers nationwide.
SKU: 42-150-093
Technical Specifications | |
---|---|
SKU | 42-150-093 |
Product Name | Sflue Black (2117306B) - Cone Top - Ø 152 |
Materials | Outer: 304-grade stainless steel (0.40mm), Inner: 316-grade stainless steel (0.40mm) |
Insulation | Compressed rockwool, density 230kg/m3 |
Joinery | 8-barbed twist-lock couplers secured with a locking band |
Welding | Fully laser welded |
Approvals | HETAS and CE marked |
Distance To Combustibles | 50mm |
Warranty | 15 Years manufacturing defect warranty, 2 Years paint warranty |
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 believe the Sflue Black (2117306B) - Cone Top - Ø 152 is an exceptional choice for those using solid fuel and oil-fired appliances. With our reliable nationwide delivery service and options for both retail and trade customers, this product is both versatile and efficient.
The Sflue Black (2117306B) - Cone Top is designed to optimize the performance of solid fuel and oil/gas appliances by offering minimal resistance to flue gases, ensuring efficient combustion and safety.
National Flues is a leading supplier of fireplaces and flues across the UK, known for competitive pricing, reliable delivery, and catering to both retail and trade customers nationwide.
