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Increaser 3 diameters - Ø 500 (3-500-202)

National Flues presents the Increaser 3 Diameters - Ø 500, a superior SWPro stainless steel flue component designed for excellence. Whether you refer to it as a flue increaser or chimney upgrade, this product is engineered to meet the rigorous demands of modern heating systems. Ideal for boilers, ovens, and chimney installations, it integrates seamlessly into your existing setup while ensuring optimal performance and safety throughout the UK.
The price you pay today £963.99
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

    Made from premium 316L stainless steel
    Expands your flue diameter by three distinct sizes
    Complies with EN 1856-1 standards and is CE marked
    Features an innovative push fit jointing system with a secure Locking Band
    High-pressure sealing gasket (P1/H1) ensures leak-proof performance
    Suitable for a range of applications including boilers, ovens, ventilation systems, and chimney liners
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, June 10th. 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 3 diameters - Ø 500 is a critical component of the SWPro modular single wall flue system, crafted from premium 316L grade stainless steel. This increaser is designed to efficiently increase the diameter of your preceding flue system by three sizes, making it suitable for a wide range of applications including boilers, ovens, ventilation systems, and chimney shaft liners. The high-pressure sealing gasket (P1/H1) ensures secure and leak-proof installations.

SWPro's universal design supports high and low temperature operations, be it non-condensing or condensing, in both positive and negative pressure environments. CE marked and meeting EN 1856-1 standards, this product guarantees quality and compliance. The innovatively designed push fit jointing system, complemented by a Locking Band, simplifies installation.

Ensure a 50mm clearance from any combustible materials such as wood or plasterboard for safe application.

SKU: 3-500-202

Technical Specifications
Material316L Stainless Steel
ApplicationIncreases flue diameter by three sizes (from 100ID up to 150ID and beyond)
SystemSWPro Modular Single Wall Flue
StandardsEN 1856-1, CE Marked
Jointing SystemPush fit with Locking Band
SealingHigh-pressure gasket (P1/H1)
ClearanceMinimum 50mm from combustible materials
Compatible FuelsGas, Oil
Warranty10 Years
When installing the Increaser 3 Diameters - Ø 500, always ensure that a minimum clearance of 50mm is maintained from any combustible materials such as wood or plasterboard. The product utilises a user-friendly push fit jointing system that is secured by an integrated Locking Band, ensuring a stable, leak-proof connection. It is important to follow all manufacturer-provided guidelines and local building regulations during installation. Optional accessories such as enhanced sealing kits, flue liners, and additional adapter accessories are available to further optimise and customise your flue system.

The Increaser 3 Diameters - Ø 500 is made from high-grade 316L stainless steel, known for its durability and resistance to corrosion.

Yes, the Increaser 3 Diameters - Ø 500 meets CE marking standards, ensuring compliance with European safety and quality regulations.

This increaser is ideal for use in boilers, ovens, ventilation systems, and as a chimney shaft liner.

Ensure a 50mm distance from any combustible materials such as wood or plasterboard when installing the increaser.

The Increaser 3 Diameters - Ø 500 uses a push fit jointing system that is secured with a Locking Band for easy and secure installation.

The high-pressure sealing gasket (P1/H1) ensures that the connections are leak-proof and secure, maintaining the system's integrity in both high and low-pressure environments.

Yes, the increaser is designed for use in both positive and negative pressure environments, accommodating a wide range of operational conditions.

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