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Non-concentric increaser - Ø 450 (3-450-004)

Discover the National Flues Non-concentric increaser Ø 450, a pivotal component of the SWPro modular flue system. This high-performance increaser, ideal for boilers, ovens, ventilation systems, and chimney shaft liners, is meticulously engineered from 316L Stainless Steel to deliver lasting durability. Enhance your flue system with this robust and versatile accessory that ensures efficiency, safety, and optimal performance, suitable for both domestic and trade applications.
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£293.99
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 durable 316L Stainless Steel
  • Designed for both high and low-temperature applications
  • Suitable for condensing and non-condensing environments
  • Features a user-friendly push-fit jointing system with a Locking Band
  • CE marked and compliant with EN 1856-1 standards
  • Versatile use in boilers, ovens, ventilation systems, and chimney shaft liners

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.
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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).

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Have Questions?
Phone: 01670 206999
Email: [email protected]

The Non-Concentric Increaser Ø 450, part of the SWPro modular single-wall flue system, combines high-quality construction with exceptional versatility. Crafted from durable 316L grade stainless steel, this increaser is designed to handle both high and low-temperature applications, as well as non-condensing and condensing environments with positive or negative pressure flue gases. Its robust design ensures effective performance in a multitude of settings, including boilers, ovens, ventilation systems, and as a chimney shaft liner.

The SWPro system features a push-fit jointing mechanism secured with a Locking Band, providing a straightforward installation process. Additionally, the SWPro system is CE marked and meets EN 1856-1 standards, ensuring you benefit from a product that meets stringent European safety and quality requirements.

SKU: 3-450-004

Technical Specifications
Product NameNon-concentric increaser - u00d8 450
SKU3-450-004
Material316L Stainless Steel
SystemSWPro Modular Flue System
ApprovalsCE, EN 1856-1
FuelsGas, Oil
Distance To Combustibles50mm
Warranty10 Years
• Ensure that the push-fit jointing system is correctly engaged at every connection point, secured by the Locking Band for a firm fit. • When installing in P1 or H1 configurations, always fit jointing gaskets on every joint and maintain a minimum clearance of 50mm from any combustible material. • Follow the manufacturer's guidelines as specified in the EN 1856-1 standard to guarantee proper installation and safe operation. • It is recommended that the installation be carried out by a qualified professional familiar with flue system protocols to ensure compliance with local regulations and safety standards.

The Non-Concentric Increaser is made from high-grade 316L stainless steel, ensuring durability and resistance to corrosion.

Yes, the Non-Concentric Increaser is designed to handle both high and low temperatures, making it versatile for various systems.

Absolutely, the SWPro system is equipped to handle both non-condensing and condensing applications with positive and negative pressure flue gases.

The increaser features a push-fit jointing system secured with a locking band. In P1 and H1 installations, jointing gaskets must be fitted on every joint, maintaining a 50mm distance from any combustible material.

The SWPro system is CE marked with the following designations: EN 1856-1: T200 H1 W Vm L50040 O(50) for diameters Ø 80 to Ø 200, and EN 1856-1: T200 H1 W Vm L50050 O(50) for diameters Ø 250 to Ø 400.

The increaser is perfect for a variety of applications, including boilers, ovens, ventilation systems, and as a chimney shaft liner.

Yes, at National Flues, we offer reliable delivery across the UK, ensuring you receive your products quickly and efficiently.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, April 30th. If you need faster stove or fireplace delivery please give us a call. We can often 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 Non-concentric increaser - Ø 450 buyers guide

Order now to secure reliability and performance.

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