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Non-concentric increaser 3 diameters - Ø 600 (3-600-204)

Experience the superior performance of the Non-Concentric Increaser 3 Diameters - Ø 600 from National Flues. This high-quality stainless steel flue system component is engineered to support a range of heating and ventilation applications including boilers, ovens, and industrial systems. With its robust design and compliance with EN 1856-1 standards, this increaser is a reliable and efficient solution for preventing condensate pooling and ensuring optimal gas flow. Enhance your setup by exploring compatible accessories to complete your flue system.
Now only £1,257.99
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 from robust 316L Stainless Steel for superior durability and corrosion resistance

    Versatile design suitable for both high and low temperature applications, including condensing and non-condensing systems

    Innovative push-fit jointing system secured with a Locking Band for ease of installation and leak-free performance

    CE marked, ensuring compliance with stringent European safety standards

    Increases flue system diameter efficiently while minimising the risk of condensate pooling

Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, August 5th. 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.

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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 Non-concentric increaser 3 diameters - Ø 600 by SWPro is a versatile, high-performance modular single-wall flue system. Constructed from durable 316L grade stainless steel, it features a high-pressure sealing gasket (P1/H1) and is CE marked. This increaser is designed for both high and low temperatures and can handle non-condensing and condensing applications with flue gases in both positive and negative pressure.

Perfect for use in boilers, ovens, ventilation systems, and as a chimney shaft liner, it ensures seamless integration with existing systems due to its push-fit jointing system secured with a Locking Band. Always ensure to fit jointing gaskets on every joint in P1 and H1 installations, maintaining a safe distance of 50mm from the outside of the flue to any combustible materials.

SKU: 3-600-204

Technical Specifications
Diameteru00d8 600
Material316L Stainless Steel
StandardsEN 1856-1: T200 H1 W Vm L50040/O(50) u00d8 80 to u00d8 200; EN 1856-1: T200 H1 W Vm L50050/O(50) u00d8 250 to u00d8 400
Fuel CompatibilityGas, Oil
CertificationCE
Warranty10 Years
Minimum Distance To Combustibles50mm
SystemSWPro
Jointing MethodModular push-fit joint secured with a Locking Band
When installing the Non-Concentric Increaser, ensure that you maintain a minimum distance of 50mm from any combustible materials including wood or plasterboard. Each joint—specifically for P1 and H1 systems—must have a jointing gasket fitted properly to guarantee a leak-free and secure connection. Utilize the push-fit system by aligning components carefully and securing them with the recommended Locking Band to maintain stability. It is advisable to check optional accessories such as extra jointing gaskets or insulation kits that could further enhance your flue's performance. Always refer to the complete installation manual for precise instructions and torque settings to ensure optimum safety and efficiency.

Yes, the Non-Concentric Increaser 3 Diameters - Ø 600 is suitable for both high and low temperatures, making it highly versatile for multiple applications.

Yes, this increaser is designed to handle both non-condensing and condensing applications, ensuring versatility in various setups.

The increaser is made from high-grade 316L stainless steel, providing durability and resistance to corrosion.

Yes, the Non-Concentric Increaser 3 Diameters - Ø 600 is CE marked, ensuring it meets high-quality standards and safety requirements.

The increaser features a modular push-fit jointing system that is secured with a Locking Band. Ensure jointing gaskets are fitted on every joint for P1 and H1 installations.

Maintain a minimum distance of 50mm from the outside of the flue to any combustible materials like wood or plasterboard to ensure safety.

This increaser is perfect for use in boilers, ovens, ventilation systems, and as a chimney shaft liner, providing flexibility and efficiency for various needs.

What our experts say!

"The Non-Concentric Increaser 3 Diameters - Ø 600 is a top-notch addition to any flue system. Made with high-quality 316L Stainless Steel, it's designed for both high and low-temperature applications, perfect for boilers, ovens, and more. National Flues is rarely beaten on price and provides reliable delivery nationwide, serving both retail and trade customers."

The Non-Concentric Increaser 3 Diameters - Ø 600 is used to increase the flue system diameter in inclined runs while preventing potential condensate pooling.

National Flues is a leading supplier of fireplaces and flues across the UK, known for competitive pricing, reliable delivery, and excellent service to both retail and trade customers.

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