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Gasket - Ø 200 (15-200-102)

National Flues is proud to offer the high-quality Gasket Seal Ø 200, an essential component for chimney flue systems, particularly for condensing appliances. This product combines the best in modern engineering and top-grade stainless steel materials to deliver superior performance and safety. Enhance your chimney setup with National Flues’ premium range of accessories, engineered for durability, compliance, and efficiency.
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£7.49
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At a Glance

  • HETAS approved and CE marked
  • Constructed from premium 304 and 316 stainless steel
  • Engineered for solid fuel, gas, and oil appliance compatibility
  • Secure Locking Band for a reliable, tight seal
  • Designed specifically for use with condensing appliances

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]

The Gasket Seal Ø 200 is an essential component for chimney flue systems used with solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, and oil and gas boilers. Constructed with durability in mind, it features an outer skin made from 304-grade stainless steel and an inner skin from 316-grade stainless steel, both at a 0.4mm thickness. The insulation comprises compressed rockwool, offering densities of 200kg/m³ for TWPro and 128Kg/m³ for other installations.

TWPro products are fully welded, HETAS approved, and CE marked, providing assurance of quality and safety. Keep in mind the necessary distance from combustibles: 50mm for TWPro and 60mm for KC. Secure installation is ensured through the use of a Locking Band, maintaining safety and efficiency.

The Gasket Seal is particularly vital when using your chimney with condensing appliances.

SKU: 15-200-102

Technical Specifications
SKU15-200-102
Dimensionsu00d8 200
Outer Material304 Stainless Steel, 0.40mm thick
Inner Material316 Stainless Steel, 0.40mm thick
InsulationCompressed Rockwool (200kg/mu00b3 for TWPro, 128kg/mu00b3 for KC)
ApprovalsHETAS, CE
InstallationSecured using a Locking Band
Compatible FuelsWood, Oil, Gas, Low sulphur coal
Distance From CombustiblesTWPro 50mm, KC 60mm
Ensure that your chimney system maintains the required clearances from combustibles – 50mm for TWPro installations and 60mm for KC. The Gasket Seal Ø 200 is installed using a Locking Band which secures the gasket in place. Follow the manufacturer’s instructions carefully: align the gasket correctly, apply the Locking Band evenly, and verify that the seal is tight before completing the installation. Always consult the product manual and, if in doubt, contact a certified professional to guarantee a safe and secure setup.

The Gasket Seal Ø 200 is compatible with solid fuel and gas/oil appliances, including woodstoves, gas coal effect fires, and oil and gas boilers.

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

Yes, the TWPro range is HETAS approved and CE marked, ensuring compliance with safety standards.

For TWPro installations, maintain a distance of 50mm to combustibles, and 60mm for KC installations.

The Gasket Seal Ø 200, part of the TWPro Twin Wall Insulated Chimney system, is secured using a Locking Band to ensure a tight and safe connection.

The Gasket Seal Ø 200 is available for purchase online at National Flues, where we offer secure payment and nationwide delivery.

National Flues offers competitive pricing, reliable delivery, and high-quality products for both retail and trade customers, ensuring excellent service and customer satisfaction.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, April 30th. 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 on a retail basis. Give us a call if you find it cheaper and want to buy from us.

Read our review in our Gasket - Ø 200 buyers guide

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