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Increaser 3 diameters - Ø 300 (3-300-202)

Experience the reliability of National Flues' Increaser 3 Diameters - Ø 300 within our SWPro modular flue system. This high-quality, stainless steel flue component is perfect for enhancing boilers, ovens, and ventilation systems across the UK. Upgrade your chimney liner with our proven, durable increaser designed to meet rigorous European standards while providing seamless integration with your existing setup.
The price you pay today £388.99
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

    High-grade 316L stainless steel construction
    CE marked and EN 1856-1 compliant
    Modular design for single wall flue systems
    Push-fit jointing with a secure Locking Band
    Versatile use for boilers, ovens, and ventilation systems
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 3 diameters - Ø 300 is an exceptional component in our SWPro modular single wall flue system. Crafted from high-grade 316L stainless steel, it boasts a robust construction that ensures longevity and performance in both high and low-temperature applications. Whether it's for boilers, ovens, ventilation systems, or as a chimney shaft liner, this increaser is CE marked and meets rigorous European standards (EN 1856-1).

It features a high-pressure sealing gasket (P1/H1) and a reliable push-fit jointing system secured with a Locking Band. For optimal installation, make sure to maintain a 50mm distance from any combustible material. Trade accounts are available, and customers nationwide can benefit from our secure online payments and dependable delivery service.

SKU: 3-300-202

Technical Specifications
Material316L Stainless Steel
CE MarkYes
DesignationEN 1856-1: T200 H1 W Vm L50040 O(50) for u00d880 up to u00d8200 and L50050 O(50) for u00d8250 up to u00d8400
Temperature RangeSuitable for both high and low temperature applications
Installation Gap50mm distance from combustible materials
System CompatibilitySWPro modular single wall flue system
ApplicationsBoilers, ovens, ventilation systems, chimney shaft liners
FuelsGas, Oil
Warranty10 Years
Ensure a minimum 50mm gap from any combustible materials when installing the Increaser 3 Diameters - Ø 300. The push-fit jointing system, complemented by a secure Locking Band, makes installation straightforward. Carefully follow the provided guidelines to align the flue system correctly and maintain optimal performance. Double-check all connections to ensure a safe and compliant installation, in line with relevant safety standards.

It is made from high-grade 316L stainless steel, ensuring durability and performance in various applications.

Yes, the increaser is CE marked and compliant with European standards EN 1856-1.

Yes, it is suitable for both high and low-temperature applications, including non-condensing and condensing systems.

The increaser has a push-fit jointing system secured with a Locking Band. Ensure a 50mm distance from any combustible material during installation.

For diameters Ø80 up to Ø200, the designation is EN 1856-1: T200 H1 W Vm L50040 O(50). For diameters Ø250 up to Ø400, it is EN 1856-1: T200 H1 W Vm L50050 O(50).

The Increaser 3 Diameters is designed to transition from 100ID to 150ID.

Yes, it is available for both retail and trade customers, with trade accounts offering additional benefits.

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