Sflue (2188705) - Ventilated Firestop Plate (Solid Fuel) - 127mm Ø
At a Glance
- Robust dual-layer stainless steel construction (304 outer, 316 inner, both 0.40mm thick)
- Insulated with high-density (230kg/m3) compressed rockwool
- Easy installation with 8 barbed twist-lock mechanism and Locking Band
- Suitable for solid fuel and gas/oil appliances including wood stoves and boilers
- HETAS approved, CE marked and compliant with EN1856-1 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.
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 Ventilated Firestop Plate is specifically designed for use with solid fuel and gas/oil appliances, including wood stoves, gas coal effect fires, and oil and gas boilers. Its robust construction features an outer skin made from 304 grade stainless steel and an inner skin crafted from 316 grade stainless steel, both 0.4mm thick. The plate is insulated with compressed rockwool, boasting a density of 230kg/m3, which is securely encapsulated within the twist-lock couplers.
Each part is fully laser welded, ensuring exceptional durability and performance. The firestop plate maintains a safe distance of 50mm from combustibles, and its installation is straightforward with the 8 barbed twist lock mechanism and Locking Band. Approved by HETAS and CE marked, the Sflue Ventilated Firestop Plate meets stringent safety standards.
Its designation number is EN1856-1 T450 N1 D V2 L50040 G50.
SKU: 22-125-071
Technical Specifications | |
---|---|
SKU | 22-125-071 |
Dimensions | 127mm Ø |
Outer Material | 304 Stainless Steel (0.40mm thick) |
Inner Material | 316L Stainless Steel (0.40mm thick) |
Insulation | Compressed Rockwool (230kg/m3) |
Installation Method | 8 Barbed Twist-lock mechanism with Locking Band |
Distance To Combustibles | 50mm |
Approvals | HETAS / CE |
Designation | EN1856-1 T450 N1 D V2 L50040 G50 |
Warranty | 15 Years |
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
At National Flues, we highly recommend the Sflue Ventilated Firestop Plate for its superior construction and dependability. As a trusted supplier, we deliver nationwide and cater to both retail and trade customers.
The Sflue Ventilated Firestop Plate is used to safely pass the chimney through upper combustible floors and can be enclosed within a non-combustible shaft.
Sflue is known for its high-quality chimney components, including insulated chimneys and firestop plates, designed to meet stringent safety standards and ensure efficient operation of your heating appliances.
