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90° Reducing Tee Ø 125 (2-125-040)

National Flues presents the 90° Reducing Tee Ø 125, a premium flue component designed to integrate seamlessly into cascade boiler systems. Engineered from high-quality 304 and 316 stainless steel, this robust reducing tee is an ideal choice for solid fuel and gas/oil appliances, delivering efficiency, safety, and performance in one dependable package.
The price you pay today £281.99
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

    Constructed with dual stainless steel layers: 304 outer and 316 inner (0.40mm each)
    Fully welded design for enhanced durability
    Complies with HETAS and CE standards
    Insulated with 200kg/m3 compressed rockwool for optimal thermal efficiency
    Engineered for cascade boiler systems with 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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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.
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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 90° Reducing Tee Ø 125 is designed to connect multiple boilers, creating a seamless full system. This crucial flue component is perfect for solid fuel and gas/oil appliances such as wood stoves, gas coal effect fires, and boilers. Constructed with an outer skin of 304-grade stainless steel and an inner skin of 316-grade stainless steel, both 0.4mm thick, it ensures maximum durability.

The insulation comprises compressed rockwool with a density of 200kg/m3. Fully welded and maintaining a 50mm distance to combustibles, it meets the highest safety standards. It carries HETAS approval and CE marking with Designations EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20, affirming its quality and safety.

Installation is straightforward with the TWPro Twin Wall Insulated Chimney parts, secured together using a Locking Band.

SKU: 2-125-040

Technical Specifications
DesignationsEN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20
MaterialInner: 316L Stainless Steel (0.40mm thick), Outer: 304 Stainless Steel (0.40mm thick)
InsulationCompressed rockwool, 200kg/m3
ApprovalsHETAS, CE Marking
Combustible Clearance50mm
UsageSuitable for solid fuel and gas/oil appliances
Installation SystemTWPro Twin Wall Insulated Chimney with Locking Band
Ensure proper alignment when connecting multiple boilers by following the manufacturer’s TWPro Twin Wall Insulated Chimney installation instructions. Use the recommended Locking Band to securely fasten the reducing tee and adjacent flue components. Always maintain a minimum clearance of 50mm from all combustible materials, such as wood or plasterboard. For best results and adherence to safety guidelines, consider employing a certified professional for installation.

This tee is ideal for solid fuel and gas/oil appliances, including wood stoves, gas coal effect fires, and boilers.

The outer skin is 304-grade stainless steel, and the inner skin is 316-grade stainless steel, both 0.4mm thick.

The tee uses compressed rockwool as insulation, with a density of 200kg/m3.

Yes, the 90° Reducing Tee Ø 125 is HETAS approved and CE marked with Designations EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20.

The installation involves securing TWPro Twin Wall Insulated Chimney parts together using a Locking Band.

A distance of 50mm should be maintained from the outside of the flue to any combustible materials like wood or plasterboard.

Yes, it's designed for both residential and commercial installations requiring a robust and reliable flue component.

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