Sflue (2108705) - Firestop Plate (Gas) - 127mm Ø
At a Glance
- - Firestop Plate specifically designed for gas, oil and solid fuel appliances
- - Constructed from high-quality 304 (outer) and 316 (inner) grade stainless steel (0.40mm thick)
- - Incorporates compressed rockwool insulation with a density of 230kg/m³ for optimal thermal performance
- - HETAS Approved and CE marked, ensuring compliance with strict safety standards
- - Designed for seamless integration with 8 barbed twist-lock Twin Wall Insulated Chimney systems
- - Maintains a safe 50mm gap from combustibles to prevent fire hazards
- - Backed by a 15-year warranty for long-term peace of mind

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 (2108705) Firestop Plate (Gas) - 127mm Ø is designed for use with both solid fuel and gas/oil appliances, including woodstoves, gas coal-effect fires, and oil and gas boilers. Crafted with precision, the outer skin of this plate is made from 304 grade stainless steel with a thickness of 0.4mm, while the inner skin features 316 grade stainless steel, also 0.4mm thick. Compressed rockwool insulation, with a density of 230kg/m3, is encapsulated within the twist-lock couplers, ensuring both safety and efficiency.
The Sflue system is HETAS Approved and CE marked, making it a trusted choice for professionals. Installation is straightforward with the 8 barbed twist-lock Twin Wall Insulated Chimney parts, which are securely fastened using a Locking Band. Remember to maintain a 50mm distance from any combustible materials.
SKU: 22-125-070
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, April 8th. 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
At National Flues, we highly recommend the Sflue (2108705) Firestop Plate. Rarely beaten on price and offering reliable delivery nationwide, this product is perfect for both retail and trade customers. Secure your flue system with confidence!
The Sflue Firestop Plate is used to secure the location, and provide fire and dust stopping in chimney flue systems where temperatures do not exceed 250°C.
Sflue is a renowned brand in the flue industry, known for its high-quality and HETAS approved products that ensure safety and efficiency in chimney systems.
