Sflue Black (2172705ZB) - Ventilated Ceiling Support (Solid Fuel) - Ø 127
At a Glance
- Robust ventilated design for ceiling support
- High-grade 304 and 316 stainless steel construction
- Suitable for solid fuel, wood, gas, oil, and low sulphur coal appliances
- Integrated intumescent matrix that rapidly expands for fire protection
- HETAS approved and CE marked for assured safety

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 127mm) is a robust and reliable solution for securing and firestopping your chimney system as it passes through the first combustible floor above your appliance. Ideal for use with solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, and boilers, this component is crafted for durability and safety. The outer skin is made from high-grade 304 stainless steel, while the inner skin uses 316 stainless steel, each 0.4mm thick.
The insulation is composed of high-density compressed rockwool, offering optimal protection and thermal resistance. With a distance to combustibles set at 50mm, safety is paramount. The system operates with an 8 barbed twist lock mechanism, secured by a locking band.
Fully laser welded and HETAS approved with CE marking, you can trust in the performance and reliability of the Sflue Black Ventilated Ceiling Support.
SKU: 42-125-078
Technical Specifications | |
---|---|
SKU | 42-125-078 |
Dimensions | u00d8 127mm |
Inner Material | 316L Stainless Steel u2013 0.40mm thick |
Outer Material | 304 Stainless Steel u2013 0.40mm thick |
Insulation | High-density compressed rockwool (230kg/m3) |
Compatible Fuels | Wood, Oil, Gas, Low sulphur coal |
Approvals | HETAS / CE |
Distance To Combustibles | 50mm |
Warranty | 15 Years manufacturing defect warranty, 2 Years paint Warranty |
Installation Mechanism | 8-barbed twist lock with locking band, fully laser welded |
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
The Sflue Black Ventilated Ceiling Support is a stellar choice for any solid fuel or gas/oil appliance setup. We proudly supply this essential component nationwide, offering secure online payments for retail customers and reliable delivery for trade accounts.
This product is designed to support and firestop chimney systems as they pass through combustible floors, ensuring safe and secure installations for various heating appliances.
National Flues is a leading supplier of fireplaces and flues across the UK, committed to providing high-quality products and exceptional service to both retail and trade customers. Renowned for competitive pricing and reliable delivery, we cater to all your chimney system needs.
