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Reducer - Ø 350 (3-250-008)

National Flues, a leading supplier in the UK, proudly presents the Reducer - Ø 350 as part of our innovative SWPro flue system. This high-quality reducer, engineered from superior 316L stainless steel, is ideal for creating a safe and secure downsize in your flue diameter, ensuring an optimal fit for both residential and commercial applications. With the versatility to handle flue sizes ranging from Ø80 to Ø400, this essential component is designed for reliability and efficiency, meeting the rigorous requirements of EN 1856-1. Discover the best in chimney and flue solutions with National Flues.
£238.99
with free delivery Give us a call if you find it cheaper and we'll try to price match.

 

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At a Glance

    Made from premium 316L stainless steel for outstanding durability and corrosion resistance
    Seamless push-fit jointing system with Locking Band ensures safe and efficient installation
    Complies with EN 1856-1 standards and carries CE marking for quality assurance
    Versatile design supports a range of flue diameters from Ø80 to Ø400
    High-pressure sealing gasket (P1/H1) accommodates both condensing and non-condensing applications
    10-year warranty provides long-term reliability and peace of mind

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 Reducer - Ø 350 is an integral part of our SWPro modular single wall flue system, expertly crafted from durable 316L stainless steel for longevity and performance. This reducer is particularly valuable when you need to seamlessly decrease the diameter of your flue system, such as from 150ID to 130ID. Our SWPro flue system stands out due to its high-pressure sealing gasket P1/H1, making it suitable for both high and low temperatures, as well as for non-condensing and condensing applications.

Approved with CE marking, this system complies with EN 1856-1 standards. Installation is simplified using a push fit jointing system and Locking Band, ensuring a secure and efficient setup.

SKU: 3-250-008

Technical Specifications
Material316L Stainless Steel
Approved StandardEN 1856-1, CE Marked
Temperature CompatibilityHigh & Low Temperature, Condensing & Non-condensing
Sealing SystemHigh-pressure gasket (P1/H1)
Flue Diameter Range Supportedu00d880 to u00d8400
Installation MethodPush-fit jointing with Locking Band
Warranty10 Years
Distance To Combustibles50mm
Before installation, ensure that the reducer and all accompanying jointing gaskets are thoroughly inspected for any damage. Begin by aligning the Reducer - Ø 350 accurately with the existing flue system. The push-fit jointing system is designed for quick and secure connections; firmly press the reducer into place until the Locking Band clicks, indicating a secure fit. It is vital to maintain a minimum 50mm distance from any combustible materials during installation. For optimum performance in both condensing and non-condensing applications, use the high-pressure sealing gasket (P1/H1) as specified in the installation manual. Always refer to the manufacturer's detailed guidelines and consult a professional installer if in doubt.

The Reducer - Ø 350 is constructed from high-grade 316L stainless steel.

Yes, the Reducer - Ø 350 is designed for both high and low temperature applications, both non-condensing and condensing.

The reducer is easily installed using a push fit jointing system, secured with a Locking Band. Ensure jointing gaskets are used for P1 and H1 installations and maintain a 50mm distance from any combustible materials.

Yes, the Reducer - Ø 350 is CE marked and meets the EN 1856-1 standards.

The Reducer - Ø 350 supports transitions between various diameter sizes, suitable for applications from Ø 80 up to Ø 400.

Yes, the Reducer - Ø 350 is versatile and can be used in boilers, ovens, ventilation systems, and as a chimney shaft liner.

Yes, National Flues provides reliable nationwide delivery for both retail and trade customers.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, May 20th. 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.

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.

Read our review in our Reducer - Ø 350 buyers guide

Secure your advanced flue solution now – upgrade your system with a Reducer - Ø 350.

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