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Sflue (2188805) - Decorative Ventilated Firestop - 127mm Ø (22-125-075)

The Sflue Decorative Ventilated Firestop delivers exceptional performance for both residential and commercial chimney installations. Designed with high-grade 316L and 304 stainless steel, this decorative firestop provides excellent ventilation and heat resistance, making it an ideal choice for wood, oil, gas, and low sulphur coal appliances. Read more...
Sflue (2188805) - Decorative Ventilated Firestop - 127mm Ø
IN STOCK
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Now only £268.99
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At a Glance

  • HETAS Approved & CE Marked
  • Dual-layer stainless steel construction (304 outer, 316 inner)
  • Compressed rockwool insulation (230kg/m³) for superior heat resistance
  • Elegant white gloss finish for a sleek appearance
  • 8-barbed twist-lock mechanism for secure installation
  • Designed for both solid fuel and gas/oil appliances
  • Meets EN1856-1 T450 N1 D V2 L50040 G50 designation standards

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

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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.
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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: sales@nationalflues.com

The Sflue (2188805) Decorative Ventilated Firestop is meticulously designed for use with solid fuel, gas, and oil appliances such as wood stoves, gas coal effect fires, and oil/gas boilers. Constructed with 304-grade stainless steel for the outer skin and 316-grade stainless steel for the inner skin, this firestop guarantees durability and efficiency. The 0.4mm thick layers are insulated with compressed rockwool, offering a density of 230kg/m³.

The insulation is securely encapsulated within twist-lock couplers, ensuring safe and seamless installation. Fully laser welded and HETAS Approved, the Sflue firestop meets the EN1856-1 T450 N1 D V2 L50040 G50 designation standards. Installation is straightforward with an 8-barbed twist-lock mechanism and a locking band, keeping a mandatory distance of 50mm from any combustible materials such as wood or plasterboard.

Finished in a pristine white gloss, this firestop is not only functional but also adds an aesthetically pleasing touch to any installation.

SKU: 22-125-075

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

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Technical Specifications
SKU22-125-075
Dimensions127mm Ø
Outer Material304 Stainless Steel (0.40mm thick)
Inner Material316L Stainless Steel (0.40mm thick)
InsulationCompressed Rockwool (230kg/m³)
Installation Mechanism8-barbed twist-lock mechanism with locking band
ApprovalsHETAS / CE
StandardsEN1856-1 T450 N1 D V2 L50040 G50
Distance To CombustiblesMinimum 50mm
Warranty15 Years
For a secure and compliant installation, first ensure that the firestop is positioned with a minimum clearance of 50mm from any combustible materials. Begin by aligning the firestop with the chimney penetration and firmly engage the 8-barbed twist-lock coupler. Once in place, secure the unit with the locking band to prevent movement. It is important to double-check that the twist-lock mechanism is fully engaged to avoid any disconnection during operation. Follow any additional manufacturer guidelines and consult a certified installer if uncertain about the procedure. Periodic inspection is recommended to maintain optimal safety performance.

It is suitable for use with solid fuel and gas/oil appliances like woodstoves, gas coal effect fires, and oil and gas boilers.

The outer skin is made from 304-grade stainless steel, and the inner skin is made from 316-grade stainless steel. Both are 0.4mm thick and insulated with compressed rockwool.

Yes, it is HETAS Approved and CE marked, meeting the EN1856-1 T450 N1 D V2 L50040 G50 designation standards.

It uses an 8-barbed twist-lock mechanism and is secured with a locking band. Ensure a 50mm distance from combustibles during installation.

The high-quality white gloss finish provides an aesthetically pleasing and clean appearance, ideal for visible ceiling penetrations.

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

A minimum distance of 50mm from any combustible materials such as wood or plasterboard is required.

 

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