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Tee 90° reduced connection Ø 80 - Ø 250 (3-250-R90-080)

National Flues offers the Tee 90° reduced connection Ø80 - Ø250, a premium flue system accessory built from high-grade 316L stainless steel. Ideal for cascade header assemblies and a variety of industrial and commercial applications, this robust product ensures efficient and reliable performance. Enhance your flue system with National Flues' range of modular accessories, engineered for excellence in both safety and durability.
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At a Glance

    High-grade 316L stainless steel construction

    Secure push-fit joint system with Locking Bands and high-pressure sealing gaskets

    CE marked and compliant with EN 1856-1 standards

    Designed specifically for cascade header systems

    Wide compatibility for diverse flue applications including boilers, ovens, and chimney liners

Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, July 8th. This is based on current lead times for this product. 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 on 01670 206 999. 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.

Best 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.

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 Tee 90° reduced connection Ø 80 - Ø 250 is part of our SWPro modular single wall flue system, constructed from high-grade 316L stainless steel. Designed for diverse applications including boilers, ovens, and chimney shaft liners, SWPro excels in both high and low-temperature environments. With a push-fit joint system secured by Locking Bands and high-pressure sealing gaskets, it ensures robustness and reliability.

The tee is CE marked and satisfies the stringent requirements of EN 1856-1 standards, making it a trustworthy option for both positive and negative pressure systems.

SKU: 3-250-R90-080

Technical Specifications
Material316L Stainless Steel
Connection Angle90u00b0
Diameter Rangeu00d880 to u00d8250
StandardsCE, EN 1856-1
SystemSWPro
JoineryPush-fit with Locking Bands and high-pressure sealing gaskets
ApplicationCascade header systems, boilers, ovens, chimney liners
Warranty10 Years
Fuels CompatibleGas, Oil
Clearance From Combustibles50mm
For optimal performance, install the Tee 90° reduced connection by ensuring a minimum clearance of 50mm from any combustible material. Follow the manufacturer’s guidelines carefully: secure the joints using the provided Locking Bands and high-pressure sealing gaskets. This component is designed exclusively for non-condensing systems, so ensure that your installation meets this criteria. Always refer to the EN 1856-1 standards during setup and consult a professional if uncertain about any installation steps.

The Tee 90° reduced connection Ø 80 - Ø 250 is made of high-grade 316L stainless steel, known for its durability and resistance to corrosion.

No, the Tee 90° reduced connection Ø 80 - Ø 250 is not designed for condensing systems. It is intended for use in non-condensing applications.

This product comes with a reduced connection diameter ranging from Ø 80 to Ø 250, accommodating various installation requirements.

The Tee 90° reduced connection Ø 80 - Ø 250 is CE marked and adheres to the EN 1856-1 standards, ensuring it meets rigorous safety and performance criteria.

The jointing system uses a push-fit design secured with Locking Bands and high-pressure sealing gaskets, ensuring a robust and leak-proof connection.

This tee is suitable for a wide range of applications, including boilers, ovens, ventilation systems, and chimney shaft liners.

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

What our experts say!

"The Tee 90° reduced connection Ø 80 - Ø 250 is a versatile and reliable component of our SWPro modular flue system. Perfect for various applications, this product stands out for its high-quality construction and flexible installation options. We deliver nationwide, serving both retail and trade customers, and are rarely beaten on price."

The Tee 90° reduced connection Ø 80 - Ø 250 is designed for use in cascade header systems, facilitating the efficient connection and management of flue gases in a variety of industrial and commercial settings.

National Flues is a leading supplier of high-quality fireplaces and flues, serving both retail and trade customers throughout the UK. Known for reliable delivery and competitive pricing, we offer secure online payments and trade accounts for professionals in the industry.

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