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Increaser - Ø 350 (3-350-002)
National Flues presents the Increaser - Ø 350, a premium accessory for modular single wall flue systems. Engineered from superior 316L stainless steel, this increaser ensures robust performance for boilers, ovens, and HVAC applications. Elevate your installation with this CE marked, EN 1856-1 compliant product, and explore optional accessories for a complete and efficient flue solution.
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£232.88
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Constructed from premium 316L Stainless Steel CE marked and EN 1856-1 compliant for safety and quality Designed for both high and low-temperature applications Easy push-fit installation with a secure locking band Seamlessly up-sizes flue diameters for versatile installations
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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.
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.
The Increaser - Ø 350 is an integral part of the SWPro modular single wall flue system, designed with the sophisticated needs of commercial and residential settings in mind. Made from 316 grade stainless steel, it boasts a high-pressure sealing gasket (P1/H1), making it suitable for both high and low-temperature applications. The SWPro flue system accommodates positive and negative pressure scenarios, excelling in non-condensing and condensing environments.
It meets rigorous quality standards, marked by its CE certification and compliance with EN 1856-1 regulations. The Increaser is perfect for various applications, including boilers, ovens, ventilation systems, and as a chimney shaft liner. Installation is simplified through its push-fit jointing system, further secured by a locking band.
Ensure a 50mm clearance from any combustible materials to maintain safety.
Ensure that you maintain a 50mm clearance from any combustible materials when installing the Increaser - Ø 350. The flue component features a simple push-fit jointing system that is further secured with a locking band, ensuring a firm and reliable connection. Always adhere to the manufacturer's instructions and safety regulations during installation. Optional accessories, such as chimney support rings or extra flue liners, are available and can be explored to complement and enhance the performance of your entire flue system.
The Increaser - Ø 350 is constructed from high-grade 316L stainless steel, ensuring durability and longevity even in demanding environments.
Yes, the Increaser - Ø 350 is CE marked, conforming to EN 1856-1 standards, guaranteeing its high quality and safety in various applications.
Absolutely. This increaser is suitable for both high and low-temperature applications, offering versatility for different needs.
The Increaser - Ø 350 is perfect for boilers, ovens, ventilation systems, and as a chimney shaft liner.
No, the Increaser - Ø 350 is designed for easy installation with a push-fit jointing system that is secured by a locking band.
The high-pressure sealing gasket (P1/H1) ensures airtight connections, making the system suitable for both positive and negative pressure applications.
To ensure safety, maintain a 50mm distance from the outside of the flue to any combustible materials such as wood or plasterboard.
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We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Monday, May 12th. Delivery times of products not in our warehouses depend on product availability and shipping. If you need a definitive delivery time give us a call.
If you need faster stove or fireplace delivery please also 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. 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.
The Increaser - Ø 350 from National Flues is more than just a flue system accessory. Engineered from high-grade 316L stainless steel, this component is designed to seamlessly up-size your flue, ensuring optimal performance and safety whether installed in a domestic or commercial setting. In this comprehensive buyer's guide, we will explore the fundamental features, benefits, installation tips, and additional accessories available to enhance your flue system.
Product Overview
The Increaser - Ø 350 is a vital component within the SWPro modular single wall flue system. It is specifically designed to bridge the gap between different flue diameters, allowing for an effortless transition – for example, from 130ID to 150ID. This product is ideal for applications including boilers, ovens, and ventilation systems, as well as serving as a chimney shaft liner. With its robust construction and user-friendly design, this increaser meets rigorous safety standards and is certified according to EN 1856-1.
Key Features and Benefits
When considering a flue solution, it is essential to choose components that not only meet but exceed industry standards. The Increaser - Ø 350 is crafted from premium 316L stainless steel, ensuring durability and resistance even in the most challenging environments. The high-pressure sealing gasket (P1/H1) contributes to secure connections, accommodating both positive and negative pressures. Key benefits include:
• Enhanced Safety: CE marked and compliant with EN 1856-1, it assures you of high quality and reliable performance.
• Versatility: Suitable for both high and low-temperature applications, making it a universal solution for diverse heating systems.
• Ease of Installation: Featuring a push-fit jointing system, this increaser reduces installation time and complexity.
• Long-lasting Performance: With a warranty of 10 years, it promises longevity and reduces maintenance concerns.
Installation Guidance
Proper installation is crucial for the performance and safety of your flue system. The Increaser - Ø 350 is designed with a user-friendly push-fit jointing system that is further secured with a locking band, ensuring a steadfast and durable connection. It is imperative to maintain a clearance of at least 50mm from any combustible materials, such as wood or plasterboard, to prevent any potential fire hazards. We recommend that you follow the detailed installation instructions provided by National Flues, and where necessary, consult a professional installer to guarantee that all safety requirements are met.
Additional Accessories & Customisation Options
At National Flues, we understand that a complete flue system often requires more than just a single component. While the Increaser - Ø 350 offers exceptional performance on its own, exploring additional accessories can further optimise your system. Consider searching for compatible optional accessories such as chimney support rings, extra flue liners, or protective heat shields. These accessories not only complement the functionality of the Increaser but also provide tailored solutions for specific installation scenarios, ensuring that your flue system remains safe, efficient, and perfectly suited to your needs.
After-Sales Support and Warranty
When investing in high-quality flue system components, reliable after-sales support is indispensable. National Flues backs the Increaser - Ø 350 with a 10-year warranty, reflecting our confidence in the durability and performance of our products. Our dedicated customer support team is available to assist with any queries or concerns, providing technical advice and guidance throughout the installation process. This service ensures that your investment is safeguarded and that any additional components or accessories you may need can be sourced with ease.
Why Choose the Increaser - Ø 350?
Choosing the right components for your flue system is critical to achieving safe and efficient operation. The Increaser - Ø 350 is designed to meet the highest standards of quality and performance. Its robust construction, user-friendly installation mechanism, and compliance with international safety standards make it an ideal choice for modern heating solutions. Moreover, with the added option to integrate compatible accessories, this product offers the flexibility required in today's diverse installation environments.
Overcoming Common Concerns
Many customers wonder about the safety of up-sizing their flue system or question the compatibility of different temperatures and pressures. With the Increaser - Ø 350, each of these concerns is addressed through its engineered design and the use of premium materials. The push-fit installation system minimizes errors and ensures longevity, while the CE certification reassures you of its compliance with European safety standards. Additionally, its compatibility with both condensing and non-condensing environments means that you are prepared for any installation scenario.
Final Thoughts
Investing in the right flue system components can enhance the efficiency and safety of your heating setup. The Increaser - Ø 350 by National Flues is a testament to quality engineering, combining robust 316L stainless steel construction with innovative design and ease of installation. Whether you are upgrading an existing system or planning a new installation, this product is designed to deliver superior performance. Optional accessories are available to further tailor your flue system to your specific requirements, ensuring a comprehensive and reliable solution.
Buy now or call 01670 206 999.
Secure your Increaser - Ø 350 today to guarantee optimal performance and unparalleled safety in your flue system.
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