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Insulation Cover Plate Ø 125 (2-125-104)

National Flues presents the Insulation Cover Plate Ø 125, a high-performance chimney cover accessory crafted from premium stainless steel. This essential component for TWPro Twin Wall Chimney systems not only meets but exceeds industry standards, offering a versatile solution for both solid fuel and gas/oil appliances. Enhance your chimney with this top-quality, HETAS approved, and CE marked cover plate and explore our range of complementary chimney accessories.
The price you pay today £24.99
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At a Glance

    Premium dual stainless steel construction (304 outer / 316 inner, 0.40mm thickness)
    Robust insulation with 200kg/m³ dense compressed rockwool
    HETAS approved and CE marked for safety compliance
    Designed specifically for TWPro Twin Wall Chimney systems
    Secures a safe 50mm clearance from combustible materials
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, July 1st. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days then please 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 and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

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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.

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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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:

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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]

The Insulation Cover Plate Ø 125 is designed to cap off the final section of your TWPro Twin Wall Chimney, providing a secure and weatherproof finish. Suitable for solid fuel and gas/oil appliances, including woodstoves, gas coal effect fires, and boilers, this cover plate offers extensive versatility. Constructed with durable 304-grade stainless steel on the outside and 316-grade stainless steel on the inside, it boasts a thickness of 0.4mm for both layers.

The dense compressed rockwool insulation, with a density of 200kg/m³, guarantees optimal performance in high-heat environments. All components are fully welded for a seamless fit. The plate maintains a safe distance of 50mm from combustible materials, ensuring compliance with stringent safety standards.

The TWPro Insulation Cover Plate is HETAS approved and CE marked with designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20, underscoring its quality and safety credentials. Installation is straightforward, requiring the use of a locking band to secure the parts together, and it is crucial to observe the mandatory clearance from combustible materials.

SKU: 2-125-104

Technical Specifications
SKU2-125-104
Plate Diameter125mm
Outer Material304 Stainless Steel (0.40mm)
Inner Material316 Stainless Steel (0.40mm)
Insulation Density200kg/mu00b3
ApprovalsHETAS, CE (EN1856-1 T600 N1 W V2 L50040 G50, EN1856-1 T200 W V2 L50040 O20)
Clearance From Combustibles50mm
WeldingFully welded components
Compatible WithTWPro Twin Wall Chimney
Installation MethodSecured using a locking band
For a secure installation, align the cover plate with the final section of your TWPro Twin Wall Chimney and firmly secure it using the recommended locking band. Ensure that a minimum clearance of 50mm is maintained from any combustible materials at all times. Always adhere to safety guidelines by double-checking that all components are properly fitted. Note that while the Insulation Cover Plate is designed to integrate with third-party terminals, National Flues does not assume responsibility for any additional attachments. Always consult with a professional if unsure about any part of the installation process.

It is suitable for solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, and boilers.

The outer skin is made from 304-grade stainless steel, and the inner skin is made from 316-grade stainless steel, both with a thickness of 0.4mm. The insulation is dense compressed rockwool.

Yes, it is HETAS approved, CE marked, and constructed to rigorous safety standards, including maintaining a safe distance from combustible materials.

The cover plate is installed by securing it to the TWPro Twin Wall Chimney parts using a locking band. Ensure a 50mm clearance from any flammable materials.

The density of the insulation is 200kg/m³, providing superior thermal protection.

Yes, it is designed to be used when a third-party terminal is employed, but National Flues is not responsible for the attachment of these terminals.

It is HETAS approved and CE marked, with the following designation numbers: EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20.

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