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Tee Cap Ø 80 (2-80-036)

National Flues presents the Tee Cap Ø 80, a premium chimney flue accessory engineered for reliable performance. This insulated, HETAS Approved, and CE marked product is ideal for sealing off unused ends of 90/135° tees in your chimney system, optimising safety and efficiency. Enhancing your installation with this robust, stainless steel accessory ensures a high-quality, fully compliant solution for any wood, oil, or gas appliance.
Great value at £24.99
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At a Glance

    Constructed with 304-grade stainless steel outer skin and 316-grade stainless steel inner skin (0.40mm thick)
    Compressed rockwool insulation (200kg/m³) for optimal thermal protection
    HETAS Approved & CE marked, meeting EN1856-1 standards
    Suitable for wood, oil, gas and low sulphur coal appliances
    Easy installation with a Locking Band ensuring a safe 50mm clearance from combustibles

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 Tee Cap Ø 80 is an essential accessory designed for capping off the bottom or unused end of a 90/135° tee in chimney flue systems. Suitable for use with solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, and boilers, this tee cap guarantees robust performance. Constructed with a 304-grade stainless steel outer skin and a 316-grade stainless steel inner skin, both 0.4mm thick, it boasts excellent durability.

The inner insulation is made of compressed rockwool with a density of 200kg/m3, ensuring optimal thermal protection. Fully welded parts and a required 50mm distance from combustibles make this component exceptionally safe. Our Tee Cap Ø 80, part of the TWPro Twin Wall Insulated Chimney range, is HETAS Approved and CE marked, meeting stringent EN1856-1 standards.

Installation is straightforward using a Locking Band, enabling easy removal for sweeping and maintenance access. This product is perfect for ensuring safety and efficiency in your chimney flue system.

SKU: 2-80-036

Technical Specifications
Outer Material304 Stainless Steel, 0.40mm thick
Inner Material316 Stainless Steel, 0.40mm thick
InsulationCompressed rockwool, 200kg/mu00b3
ApprovalsHETAS Approved, CE marked
Design StandardsEN1856-1 (T600 N1 W V2 L50040 G50 and T200 W V2 L50040 O20)
Fuel CompatibilityWood, Oil, Gas, Low sulphur coal
Combustible Clearance50mm
Installation MethodLocking Band
Installation is straightforward: fix the Tee Cap Ø 80 in place using the Locking Band, ensuring a minimum clearance of 50mm from any combustible material. Before installation, verify that your chimney system complies with all safety standards. Regular maintenance—by removing the cap for cleaning and sweeping—is recommended to keep your chimney running efficiently.

The Tee Cap Ø 80 is constructed with a 304-grade stainless steel outer skin and a 316-grade stainless steel inner skin, both 0.4mm thick. It also features compressed rockwool insulation with a density of 200kg/m3.

Yes, the Tee Cap Ø 80 is HETAS Approved, ensuring it meets high safety standards for solid fuel appliances.

Absolutely, the Tee Cap Ø 80 is suitable for use with both gas and oil appliances, including gas coal effect fires and boilers.

Installation is done using a Locking Band that secures the parts together. Ensure a 50mm distance from the cap to any combustible materials such as wood or plasterboard.

The required distance from the outside of the Tee Cap Ø 80 to any combustible material is 50mm.

The Tee Cap Ø 80 is both HETAS Approved and CE marked. It meets the EN1856-1 standards with the designations T600 N1 W V2 L50040 G50 and T200 W V2 L50040 O20.

The Tee Cap Ø 80 is used to cap off the bottom or unused end of a 90/135° tee in a chimney flue system, facilitating easy access for sweeping and maintenance.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Thursday, May 22nd. 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.

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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.

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