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Increaser 2 diameters - Ø 200 (3-200-102)

National Flues brings you the Increaser 2 Diameters - Ø 200, a high-quality SWPro stainless steel flue adapter designed for the modern installer. Perfect for expanding existing chimney systems or upgrading ventilation setups, this versatile flue component offers reliable performance with its premium 316L construction, superior safety features, and compliance with EN 1856-1 standards. Ideal for both residential and commercial applications, this product is your go-to solution for enhancing flue system efficiency and safety.
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At a Glance

    Made from high-grade 316L stainless steel

    CE marked and complies with EN 1856-1 standards

    Push-fit jointing system with secure Locking Band

    Designed for both positive and negative pressure applications

    Versatile for residential and commercial installations

    Ensures a safe 50mm distance from combustibles

    Backed by a 10-year warranty

Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, August 6th. 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 Increaser 2 diameters - Ø 200 is part of the versatile SWPro single wall flue system. Crafted from high-grade 316L stainless steel, it is designed for robust performance in both high and low temperature scenarios. This universal flue system meets stringent standards for both non-condensing and condensing applications, handling flue gases of positive and negative pressure with ease.

The SWPro system is suitable for any setting, be it residential or commercial, including boilers, ovens, ventilation systems, and as chimney shaft liners. CE marked for assurance, it conforms to EN 1856-1 standards with a designation of T200 H1 W Vm L50040 O(50) for diameters from Ø 80 to Ø 200 and T200 H1 W Vm L50050 O(50) for diameters from Ø 250 to Ø 400. Installation is straightforward with a push-fit jointing system, secured using a Locking Band.

For optimal safety in P1 and H1 installations, jointing gaskets must be fitted to every connection, ensuring a safe distance of 50mm from the outside flue to combustible materials.

SKU: 3-200-102

Technical Specifications
SKU3-200-102
ModelIncreaser 2 Diameters - u00d8 200
Material316L Stainless Steel
StandardsEN 1856-1, CE marked
SystemSWPro
ApplicationResidential and Commercial (boilers, ovens, ventilation, chimney liners)
Diameter Rangeu00d8 80 to u00d8 200 (and u00d8 250 to u00d8 400 in extended applications)
InstallationPush-fit jointing system with Locking Band; requires jointing gaskets
Safety Distance50mm from combustibles
Warranty10 Years
During installation, ensure that every connection is fitted with a jointing gasket to maintain the essential 50mm gap to combustible materials. The push-fit jointing system, secured by a Locking Band, is designed for ease-of-use; however, strict adherence to manufacturer guidelines is recommended. For optimal performance in P1 and H1 installations, verify that all connections are correctly aligned and sealed. Always consult local building regulations and codes when installing the increaser to ensure compliance and safety.

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

It is ideal for a wide range of applications including boilers, ovens, ventilation systems, and as a chimney shaft liner.

Yes, it is CE marked and conforms to EN 1856-1 standards.

The increaser uses a modular push-fit jointing system, secured with a Locking Band. For P1 and H1 installations, jointing gaskets must be fitted at every joint.

Ensure a safety distance of 50mm from the outside of the flue to any combustible material such as wood or plasterboard.

The designation numbers are EN 1856-1: T200 H1 W Vm L50040 O(50) for diameters Ø 80-200 and EN 1856-1: T200 H1 W Vm L50050 O(50) for diameters Ø 250-400.

Yes, the SWPro system is designed to handle both positive and negative pressure scenarios.

What our experts say!

"The Increaser 2 Diameters - Ø 200 is a perfect solution for expanding your flue system with ease and reliability. At National Flues, we pride ourselves on unbeatable pricing, nationwide delivery, and outstanding service to both retail and trade customers. Secure payments guaranteed."

The Increaser 2 Diameters - Ø 200 is designed to expand the diameter of an existing flue system, accommodating larger flue requirements seamlessly.

National Flues supplies high-quality flue systems and components to both retail and trade customers across the UK. Known for reliable delivery and competitive pricing, National Flues ensures secure online payments and exceptional customer service.

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