Gasket - Ø 200
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]
- Info
- Specs
- Install
- FAQs
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 | |
---|---|
SKU | 15-200-102 |
Dimensions | u00d8 200 |
Outer Material | 304 Stainless Steel, 0.40mm thick |
Inner Material | 316 Stainless Steel, 0.40mm thick |
Insulation | Compressed Rockwool (200kg/mu00b3 for TWPro, 128kg/mu00b3 for KC) |
Approvals | HETAS, CE |
Installation | Secured using a Locking Band |
Compatible Fuels | Wood, Oil, Gas, Low sulphur coal |
Distance From Combustibles | TWPro 50mm, KC 60mm |
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.
Compatible and other products that may be of interest...
National Flues Ltd Verdict
At National Flues, we pride ourselves on providing top-notch products like the Gasket Seal Ø 200. With our reliable delivery service nationwide and competitive pricing, we cater to both retail and trade customers ensuring satisfaction every step of the way.
The Gasket Seal Ø 200 is used to ensure a secure and safe connection in chimney flue systems, particularly for condensing appliances.
National Flues is a leading supplier of fireplaces and flues, dedicated to providing high-quality products and exceptional service to retail and trade customers nationwide, with a priority on competitive pricing and reliable delivery.
