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SFlue BLK - Firestop Plate (Gas) - Ø 127 (42-125-070)

National Flues presents the SFlue BLK Firestop Plate, a premium solution for fire, dust, and location stopping. Made for solid fuel, gas, and oil appliances, this firestop plate stands out among chimney flue products with its robust 304/316 stainless steel construction and high-performance insulation. Trusted by professionals across the UK, our firestop plate is ideal for woodstoves, gas coal-effect fires, and oil/gas boilers. This high-quality product meets stringent European standards and is a Read more...
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The price you pay today £25.99
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At a Glance

    HETAS and CE approved
    Durable 304 & 316 grade stainless steel construction
    Efficient fire, dust, and location stopping
    Designed for both solid fuel and gas/oil appliances
    Complies 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.

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Have Questions?
Phone: 01670 206999
Email: [email protected]

The SFlue BLK - Firestop Plate (Gas) - Ø 127 is specifically designed for use with solid fuel and gas/oil appliances, including woodstoves, gas coal-effect fires, and oil/gas boilers. Constructed with a 304 grade stainless steel outer skin and a 316 grade stainless steel inner skin, each 0.4mm thick, the plate offers exceptional durability. The insulation is compressed rockwool with a density of 230kg/m³, encapsulated within twist-lock couplers for efficient installation.

Fully laser welded and HETAS approved, this firestop plate ensures a safe distance of 50mm from combustibles, making it a dependable choice for any installation. Adhering to the Designation Number EN1856-1 T450 N1 D V2 L50040 G50, it guarantees compliance with European standards.

SKU: 42-125-070

Technical Specifications
SKU42-125-070
DesignationEN1856-1 T450 N1 D V2 L50040 G50
SystemSFlue Black
Outer Material304 Stainless Steel, 0.40mm thick
Inner Material316L Stainless Steel, 0.40mm thick
InsulationCompressed Rockwool, 230kg/m³
Fuel CompatibilityWood, Oil, Gas, Low sulphur coal
ApprovalsHETAS / CE
Distance To Combustibles50mm
Warranty15 Years manufacturing defect warranty, 2 Years paint warranty
Before installation, ensure that the floor is non-combustible and that the flue gas temperatures do not exceed 250°C. Clean the area thoroughly, and follow the twist-lock coupler guide for a secure fit. Avoid any load bearing activities on the installed plate and maintain the specified 50mm clearance from combustibles. Always refer to the enclosed installation manual and comply with local regulations to ensure a safe and efficient setup.

It can be used with solid fuel and gas/oil appliances, including woodstoves, gas coal-effect fires, and oil/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.

The insulation is compressed rockwool with a density of 230kg/m³.

Yes, it is HETAS approved and CE marked.

You must maintain a distance of 50mm from the outside of the flue to any combustible material.

No, the SFlue BLK Firestop Plate is not load bearing.

It meets the Designation Number EN1856-1 T450 N1 D V2 L50040 G50.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, June 3rd. Delivery times of products not in our warehouses depend on product availability and shipping. If you need a definitive delivery time give us a call. If you need faster stove or fireplace delivery please also give us a call. We can sometimes 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 on a retail basis. Give us a call if you find it cheaper and want to buy from us.

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