Sflue Black (2172706ZB) - Ventilated Ceiling Support (Solid Fuel) - Ø 152
At a Glance
- Designed for both solid fuel and gas/oil appliances
- Constructed with robust 304 and 316 grade stainless steel
- Incorporates 230kg/m3 compressed rockwool insulation
- HETAS Approved and CE marked for safety compliance
- Patented intumescent matrix design for effective firestopping

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 Ventilated Ceiling Support (Ø 152mm) is expertly designed for use with solid fuel and gas/oil appliances, including wood stoves, gas coal effect fires, and oil and gas boilers. Constructed from robust materials, the outer skin features 304 grade stainless steel while the inner skin is made from 316 grade stainless steel, each with a 0.4mm thickness. The unit incorporates 230kg/m3 compressed rockwool insulation, encapsulated within twist-lock couplers for an added layer of security and ease of installation.
The distance to any combustibles must be maintained at 50mm, ensuring a safe and secure setup. This product is HETAS Approved and CE marked, boasting a designation number of EN1856-1 T450 N1 D V2 L50040 G50. Its 8-barbed twist-lock system requires a locking band to secure the chimney components together, maintaining a safe and efficient installation.
SKU: 42-150-078
Technical Specifications | |
---|---|
SKU | 42-150-078 |
Size | u00d8 152mm |
Designation | EN1856-1 T450 N1 D V2 L50040 G(50) |
Outer Material | 304 Stainless Steel - 0.40mm |
Inner Material | 316 Stainless Steel - 0.40mm |
Insulation | 230kg/m3 Compressed Rockwool |
Combustible Distance | 50mm |
Approval | HETAS / CE |
Locking Mechanism | 8-barbed twist-lock system with locking band |
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.
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National Flues Ltd Verdict
The Sflue Black Ventilated Ceiling Support (Ø 152mm) is a top-tier choice for both retail and trade customers looking for quality and reliability. With HETAS approval and a design that prioritises safety, you can count on this product to meet and exceed your needs. National Flues delivers nationwide and offers competitive pricing on all our high-quality products.
The Sflue Black Ventilated Ceiling Support is used to support and firestop chimney systems passing through the first combustible floor above your appliance, ensuring safety and compliance with regulations.
National Flues is a trusted supplier of high-quality fireplaces and flues, serving retail and trade customers across the UK with reliable delivery and competitive prices.
