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LONG 135° Tee Ø 125 (2-125-044)

The LONG 135° Tee Ø 125 from National Flues is the ultimate solution for achieving superior cleaning access in chimney installations. Crafted with premium 316L and 304 stainless steel, this connector is engineered for use in solid fuel, gas, and oil appliance setups. Ideal for modern UK households and professional trade installations, this product delivers unmatched durability, efficiency, and safety. Enhance your flue system with this exceptional chimney accessory and explore our optional acces Read more...
The price you pay today £358.99
including free delivery Give us a call if you find it cheaper and we'll normally price match.

 

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At a Glance

    Premium dual stainless steel construction (inner 316L & outer 304, both 0.40mm thick)
    Designed for optimal cleaning access in chimney systems
    Versatile for solid fuel, gas, oil, and coal effect applications
    Fully welded structure ensuring durability and safety
    Complies with HETAS and CE standards with a safe 50mm clearance from combustibles
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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Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.

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Have Questions?
Phone: 01670 206999
Email: [email protected]

The LONG 135° Tee Ø 125 is engineered to offer a reliable cleaning access at the base of your chimney system. Ideal for woodstoves, gas coal effect fires, oil and gas boilers, and other solid fuel appliances. Constructed with an inner skin made from 316-grade stainless steel and an outer skin of 304-grade stainless steel, each at 0.4mm thick, this tee is both robust and efficient.

It features compressed rockwool insulation with a density of 200kg/m3 and is fully welded, ensuring durability and safety with a minimum distance of 50mm from any combustibles. HETAS Approved and CE marked, it boasts designations EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20, underlining its top-notch credentials.

SKU: 2-125-044

Technical Specifications
SKU2-125-044
DesignationEN1856-1 T600 N1 W V2 L50040 G50 / EN1856-1 T200 W V2 L50040 O20
Inner Material316L Stainless Steel (0.40mm thick)
Outer Material304 Stainless Steel (0.40mm thick)
InsulationCompressed Rockwool (200kg/m3)
ApprovalsHETAS / CE
Clearance50mm from combustibles
ApplicationsWoodstoves, gas boilers, oil boilers, and solid fuel appliances
Installation of the LONG 135° Tee Ø 125 is straightforward when following the TWPro system guidelines. Secure the tee component to adjacent flue parts using a Locking Band and ensure that a minimum clearance of 50mm is maintained from any combustible material. Always check that the installation adheres to local regulations and safety standards. For best results and safety assurance, it is recommended to have the installation performed by a qualified professional well-versed in Twin Wall Insulated Chimney systems.

It is primarily used for creating a cleaning access at the base of the chimney, especially suited for woodstoves, gas coal effect fires, oil and gas boilers, and various solid fuel appliances.

The outer skin is made from 304-grade stainless steel, and the inner skin is made from 316-grade stainless steel, both 0.4mm thick. The insulation is made from compressed rockwool with a density of 200kg/m3.

Yes, it is HETAS Approved and CE marked, meeting the necessary safety standards for chimney flues.

A minimum distance of 50mm should be maintained from the outside of the flue to any combustible material such as wood or plasterboard.

TWPro Twin Wall Insulated Chimney parts, including the LONG 135° Tee, are secured together using a Locking Band. Ensure a safe distance from combustibles is maintained during installation.

No, the design of the 135° Tee ensures that flue gases are not restricted, promoting efficient flow throughout the system.

Yes, the LONG 135° Tee is designed to work efficiently on both internal and external walls, providing versatile cleaning access.

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