Sflue (2188806) - Decorative Ventilated Firestop - 152mm Ø
At a Glance
- 304 & 316 Stainless Steel Construction
- CE Marked & HETAS Approved
- Decorative White Gloss Finish
- Secure 8-Barbed Twist-Lock System
- Maintains 50mm Clearance from Combustible Materials

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: sales@nationalflues.com
- Info
- Specs
- Install
- FAQs
The Sflue (2188806) Decorative Ventilated Firestop in a 152mm (6 inch) diameter is a prime component for solid fuel and gas/oil appliances. This includes everything from woodstoves and gas coal effect fires to oil and gas boilers, as well as other solid fuel appliances. Constructed for durability and safety, the outer skin features 304 grade stainless steel with a 0.4mm thickness, while the inner skin employs 316 grade stainless steel of the same thickness.
The insulation consists of compressed rockwool with a density of 230kg/m3, efficiently encapsulated within the twist-lock couplers for added security. This Sflue is fully laser welded, ensuring a smooth and secure fit, and provides a CE mark and HETAS approval, denoted by its Designation Number EN1856-1 T450 N1 D V2 L50040 G50. Designed for straightforward installation, the Sflue employs an 8 barbed twist lock system, where parts are secured using a Locking Band.
A crucial safety feature is the 50mm clearance it maintains from any combustible materials. Ideal for professional and DIY projects alike, choose this firestop for added safety and an aesthetically pleasing finish in white gloss.
SKU: 22-150-075
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, April 7th. 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.
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National Flues Ltd Verdict
The Sflue Decorative Ventilated Firestop - 152mm Ø is a top-tier choice for both retail and trade customers, boasting excellent construction and design. With our unbeatable prices and reliable delivery nationwide, National Flues ensures your installation is both safe and aesthetically pleasing.
This product is a decorative firestop used to safely pass a chimney through a ceiling while maintaining an aesthetically pleasing look. It ensures proper ventilation and complies with safety standards.
National Flues is a leading supplier of fireplaces and flues across the UK, known for competitive pricing, reliable delivery, and excellent customer service for both retail and trade clients.
