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Increaser 2 diameters - Ø 350 (3-350-102)
The National Flues Increaser 2 Diameters - Ø 350 is engineered for excellence. This high-performance flue accessory, crafted from premium 316L stainless steel and CE marked to meet EN 1856-1 standards, is a reliable solution for both commercial and residential settings. Perfect for boilers, ovens, ventilation systems, and chimney liners, this versatile product ensures superior durability, safety, and efficiency. Enhance your flue system with our trusted, cost-effective solution today.
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£386.27
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Constructed from robust 316L stainless steel CE marked and compliant with EN 1856-1 standards Versatile design supports high/low temperatures and both condensing and non-condensing applications Innovative push-fit jointing system with a secure locking band Ensures safety with a mandated 50mm clearance from combustible materials Ideal for boilers, ovens, ventilation systems, and chimney shaft liners
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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.
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.
The Increaser 2 diameters - Ø 350 by SWPro is a premium modular single-wall flue system designed for a wide variety of applications. Made from 316 grade stainless steel, this increaser is built to last and withstands high-pressure environments with its P1/H1 gasket. It's suitable for both high and low temperature settings, accommodating non-condensing and condensing applications, making it perfect for boilers, ovens, ventilation systems, and chimney shaft liners.Constructed from high-grade 316L stainless steel, the SWPro system offers durability with varying thicknesses tailored to specific diameters.
The product is rigorously tested and CE marked, ensuring it meets EN 1856-1 standards. Join pieces seamlessly with its push-fit jointing system, secured by a locking band, and ensure a 50mm clearance from combustible materials for safety.The SWPro Increaser 2 diameters - Ø 350 is a reliable, adaptable choice for numerous commercial and residential applications, upholding the highest standards of quality and safety.
Operates in both high and low temperature settings; suitable for condensing and non-condensing systems
Installation
Push-fit jointing with integrated locking band and P1/H1 gasket
Minimum Clearance
50mm from combustibles
Warranty
10 Years
Fuels
Gas, Oil
For optimal performance, ensure installation is carried out by a qualified professional. Always maintain a minimum 50mm clearance from any combustible materials. Use the push-fit jointing system to connect sections securely and fit the appropriate P1 or H1 gasket on every joint before securing with the locking band. Follow the EN 1856-1 guidelines strictly and refer to the provided installation manual for additional technical support and best practices.
The product is made from high-grade 316L stainless steel, providing excellent durability and resistance to corrosion.
The Increaser 2 diameters - Ø 350 is suitable for boilers, ovens, ventilation systems, and as a chimney shaft liner. It supports both high and low temperature, non-condensing and condensing applications.
Yes, this increaser is CE marked and meets EN 1856-1 standards.
The increaser uses a modular, push-fit jointing system secured by a locking band. For P1 and H1 installations, joint gaskets must be fitted on every joint. Maintain a 50mm clearance from any combustible materials.
The increaser supports both positive and negative pressure applications in both high and low temperatures, making it very versatile for various installations.
This product offers exceptional durability, easy installation, and versatile use, meeting high standards for quality and safety. Additionally, it is competitively priced and available for nationwide delivery with reliable service from National Flues.
Yes, while often used in commercial settings, the Increaser 2 diameters - Ø 350 can also be used in residential installations, provided it meets the required specifications and clearances.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Tuesday, May 13th. 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.
Selecting the right flue system accessory is crucial when developing a heating or ventilation project that not only meets performance expectations but also complies with safety regulations. The Increaser 2 Diameters - Ø 350 from National Flues is designed with premium quality in mind, ensuring that you have a reliable solution for your flue system requirements. This buyers guide will walk you through all the essential details, addressing important considerations, installation advice, and safety features to help you make an informed decision.
Product Overview
The Increaser 2 Diameters - Ø 350 is a robust, modular accessory engineered to facilitate the transition between different flue diameters. Constructed from high-grade 316L stainless steel, this accessory is built to last in challenging environments, offering excellent resistance to corrosion. Its CE marking and compliance with EN 1856-1 standards provide assurance of top-quality construction and adherence to stringent safety norms. Designed to work seamlessly within both commercial and residential setups, it is particularly effective in applications involving boilers, ovens, and ventilation systems.
Key Features and Their Benefits
Premium Material and Construction: The use of 316L stainless steel ensures durability and longevity, while the CE marking reinforces that the product meets established European safety standards. This level of quality means you can trust the product to sustain demanding operating conditions without failure.
Versatility and Flexibility: Suitable for both condensing and non-condensing applications, this flue accessory is an adaptable solution for various environments. Whether you are dealing with high-pressure boilers or domestic heating systems, the Increaser 2 Diameters - Ø 350 integrates smoothly into your existing setup, reducing the necessity to invest in multiple products for different systems.
Innovative Installation System: The product employs a push-fit jointing system, enhanced by a secure locking band and the P1/H1 gasket. This design not only simplifies the installation process but also ensures that connections remain leak-proof and durable. By minimizing installation time, it reduces labour costs and the potential for errors.
Safety Assurance: A built-in requirement to maintain a 50mm clearance from combustible materials is a key safety feature. This precaution prevents potential fire hazards and ensures the system operates within safe parameters, offering both peace of mind and regulatory compliance.
Installation Guidelines
The ease of installation is one of the standout features of this product. Nonetheless, it is imperative that the installation is carried out as per the established guidelines. Always ensure that:
- A minimum clearance of 50mm from any combustible surface is maintained.
- The push-fit jointing system is used correctly, with each connector securely locked into place.
- Appropriate gaskets – either P1 or H1, as required – are fitted on every joint to prevent leakage.
- For optimal performance and safety, it is highly recommended that the installation be performed by a certified professional who is familiar with the EN 1856-1 standards.
Addressing Common Questions and Concerns
Will the product be compatible with my current system?
Yes, the design of the Increaser 2 Diameters - Ø 350 accommodates a range of systems, effortlessly bridging the gap between different flue diameters. This adaptability makes it ideal for retrofitting older systems as well as new installations.
How easy is it to install?
The product features an intuitive push-fit system that allows for straightforward and secure installation. The integrated locking band and gasket mechanism further lessen the risks of improper installation, ensuring a reliable seal under various operating conditions.
Is the product safe to use in high-temperature environments?
Absolutely. The accessory is designed to operate effectively in both high and low temperature settings, making it a versatile choice for a variety of heating applications. The strict adherence to a 50mm safe clearance also ensures enhanced operational safety.
What about maintenance and longevity?
Constructed from 316L stainless steel, this increaser is engineered for long-term durability with minimal maintenance. The high-quality materials and robust design mean it will reliably perform even in challenging, high-pressure environments.
Why Choose National Flues?
At National Flues, quality, reliability, and safety are at the forefront of everything we do. Our Increaser 2 Diameters - Ø 350 is a testament to that commitment. By choosing this product, you are investing in a solution that has been designed with the end-user in mind, ensuring ease of installation, compatibility with a range of applications, and long-lasting performance. We pride ourselves on offering products that not only meet but exceed industry standards, all supported by a strong customer service team ready to assist you at every step.
Conclusion
When it comes to upgrading or installing a new flue system, every component must be chosen with care. The Increaser 2 Diameters - Ø 350 stands out as a superior choice, balancing functionality with exceptional build quality. With its versatile design, simple installation process, and adherence to rigorous safety standards, it represents an investment in performance and peace of mind. Designed for both professionals and DIY enthusiasts alike, this product ensures that your flue system performs reliably and efficiently in any setting.
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Secure your safety and performance with the Increaser 2 Diameters - Ø 350 - order now!
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