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Increaser - Ø 300 (3-300-002)

National Flues proudly presents the Increaser - Ø 300, a premium accessory designed to enhance your existing flue system. This high-quality SWPro component, made from 316L stainless steel, is engineered for durability and efficiency in diverse applications including boilers, ovens, and chimney shaft liners. Perfect for both residential and commercial settings, the Increaser - Ø 300 is the ideal solution for increasing flue diameters and ensuring a reliable, high-performance system. Upgrade your Read more...
The price you pay today £138.99
including 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

    Constructed from high-grade 316L stainless steel
    Designed for the SWPro modular single wall system
    High-pressure sealing gasket (P1/H1) for secure performance
    Suitable for a variety of applications: boilers, ovens, ventilation systems, and chimney shaft liners
    CE marked and compliant with EN 1856-1 standards
    Push-fit joint system with locking band for easy, secure installation
    Ensures a 50mm clearance from combustible materials
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, June 17th. 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.

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 Increaser - Ø 300 is a top-tier component within the SWPro modular single wall flue system. Constructed from high-grade 316L stainless steel, this increaser is designed to elevate the diameter of your existing flue system seamlessly. The SWPro system is enhanced by a high-pressure sealing gasket (P1/H1), making it suitable for various applications, including boilers, ovens, ventilation systems, and as a chimney shaft liner.

Whether you are managing high or low temperatures, non-condensing or condensing environments, this increaser can handle flue gases in both positive and negative pressure scenarios. The CE-marked SWPro system adheres to rigorous standards (EN 1856-1) and ensures secure installation via a push-fit joint system with a locking band. For optimum safety, ensure a 50mm clearance from combustible materials.

Perfect for both residential and commercial setups, this increaser offers unparalleled reliability and longevity.

SKU: 3-300-002

Technical Specifications
ModelIncreaser - u00d8 300
Material316L Stainless Steel
SystemSWPro Modular Single Wall
GasketHigh-pressure sealing (P1/H1)
ComplianceCE Marked, EN 1856-1
Clearance50mm from combustible materials
Warranty10 Years
ApplicationsBoilers, ovens, ventilation systems, chimney shaft liners
InstallationPush-fit joint system with locking band
Installation is achieved using a straightforward push-fit joint system. Begin by ensuring that each joint is properly fitted with the designated sealing gaskets (P1/H1) to create a secure, leak-free connection. Always maintain a minimum clearance of 50mm from any combustible material to comply with safety standards. Prior to commissioning, double-check the alignment and locking mechanism of the band to guarantee that the system remains secure under pressure. For optimal performance and longevity, it is recommended to inspect the installation periodically, ensuring that all fittings remain tight and that there is no evidence of wear or damage.

The Increaser - Ø 300 is made from high-grade 316L stainless steel, ensuring durability and longevity.

Yes, the Increaser - Ø 300 is designed for versatile use, suited for both residential and commercial applications, including boilers, ovens, and ventilation systems.

The Increaser - Ø 300 is equipped with a high-pressure sealing gasket (P1/H1), suitable for both positive and negative pressure scenarios.

Absolutely, the SWPro system is CE marked and complies with EN 1856-1 standards, ensuring it meets rigorous safety and quality criteria.

Installation involves a push-fit joint system secured with a locking band. For P1 and H1 installations, jointing gaskets should be fitted on every joint, with a 50mm clearance from any combustible material.

Yes, the Increaser - Ø 300 is designed to operate in both high and low-temperature environments, making it highly versatile.

The Increaser - Ø 300 is constructed from durable stainless steel, requiring minimal maintenance. Regular inspections to ensure secure fittings and clear pathways are recommended.

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