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Increaser 3 diameters - Ø 350 (3-350-202)
National Flues presents the Increaser 3 Diameters – Ø 350, a high-performance chimney flue adaptor designed for superior durability and reliability. Constructed from premium 316L stainless steel, this flue diameter increaser excels in both high and low-temperature environments. Perfect for enhancing residential and commercial installations alike, the Increaser 3 Diameters – Ø 350 meets strict EN1856-1 standards and is ideal for use in boilers, ovens, ventilation systems, and chimney shaft liners.
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£671.85
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Expands flue diameter from Ø 100 up to Ø 350 Crafted from premium 316L stainless steel Push-fit jointing system with optional locking bands CE marked and EN1856-1 compliant Versatile for boilers, ovens, ventilation, and chimney liners Suitable for both condensing and non-condensing applications
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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 3 diameters - Ø 350 is a concentric increaser designed to seamlessly expand the diameter from your existing flue system up to three different levels, specifically Ø 350. This product is part of the SWPro range, a modular single wall flue system crafted from premium 316L stainless steel ensuring high durability and efficiency. Suitable for both high and low-temperature applications, as well as non-condensing and condensing environments, this increaser is versatile for uses such as boilers, ovens, ventilation systems, and chimney shaft liners.
Boasting a CE mark and stringent EN1856-1 compliance, it ensures safety and reliability. Installation is a breeze with its push-fit jointing system and optional locking bands for added security. For P1 and H1 installations, all joins must be fitted with jointing gaskets and maintain a safe distance of 50mm from any combustible materials.
Push-fit jointing with optional locking bands; Jointing gaskets required for P1 and H1 installations
Warranty
10 Years
Distance To Combustibles
Minimum 50mm
Installation is straightforward with the push-fit jointing system. Ensure all joins are fitted with appropriate jointing gaskets in P1 or H1 applications. For enhanced safety, use the optional locking bands and maintain a minimum distance of 50mm from any combustible materials. It is recommended that installation be performed by a qualified professional when in doubt.
The Increaser 3 Diameters - Ø 350 is made from high-grade 316L stainless steel, offering excellent durability and resistance to high temperatures.
Yes, the increaser is suitable for both condensing and non-condensing applications, making it highly versatile.
Installation involves a straightforward push-fit jointing system secured with a locking band. For P1 and H1 installations, jointing gaskets must be fitted.
A minimum distance of 50mm should be maintained from any combustible materials such as wood or plasterboard.
The product is CE marked and meets the EN1856-1 standards, ensuring it complies with European safety regulations.
Yes, the increaser can be effectively used in ventilation systems, alongside its applications in boilers, ovens, and chimney shaft liners.
The increaser supports a range of diameters from Ø 100 up to Ø 350, accommodating various needs.
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.
The Increaser 3 Diameters – Ø 350 is the ideal solution for experts and homeowners looking to upgrade their flue systems, ensuring a seamless and reliable connection between different diameter sections. In this guide, we will detail the features, benefits, installation procedures, and safety tips to help you make an informed purchase decision.
Overview and Core Benefits
The Increaser 3 Diameters – Ø 350 is engineered with precision from premium 316L stainless steel, a material known for its excellent resistance to high temperatures and corrosion. This product is designed to expand the diameter of an existing flue system from Ø 100 up to Ø 350 with ease, making it incredibly versatile for a range of applications including boilers, ovens, ventilation systems, and chimney shaft liners. The innovative push-fit jointing system simplifies the installation process, while optional locking bands add an extra layer of security.
Key Features and Their Advantages
- Durable Construction: Made from high-grade 316L stainless steel, ensuring longevity and performance even in demanding conditions.
- Versatility in Application: Designed to accommodate a variety of flue sizes (from Ø 100 to Ø 350), this increaser is suitable for a multitude of thermal environments, including both condensing and non-condensing systems.
- Effortless Installation: The push-fit jointing system is engineered for quick and easy installation. Optional locking bands and jointing gaskets (required for P1 and H1 applications) ensure the system remains secure.
- Compliance and Safety: With a CE mark and adherence to EN1856-1 standards, the product is guaranteed to meet rigorous European safety requirements, assuring you of a safe and reliable installation.
Installation and Safety Considerations
Proper installation is paramount to ensure the long-term performance and safety of your flue system. Follow these guidelines to achieve the best results:
1. Preparation: Before installation, ensure that your flue system is properly measured and compatible with the Increaser 3 Diameters – Ø 350. Gather all necessary components including optional locking bands and jointing gaskets if it is a P1 or H1 installation.
2. Step-by-Step Installation:
- Begin by aligning the increaser with your existing flue system. The push-fit design allows for a straightforward connection.
- Insert the increaser into the system until the joint is secure. Use the optional locking bands to further secure the connection.
- For P1 and H1 installations, be sure to install the jointing gaskets at all required joins.
- Ensure that the installation maintains a minimum clearance of 50mm from any combustible materials to prevent hazards.
3. Final Checks: Once installed, inspect all connections to ensure they are secure and correctly fitted. A sound installation will not only enhance the performance but also extend the lifespan of your flue system.
Compatibility and Application Scenarios
This product is highly adaptable, making it suitable for both residential and commercial applications. Whether you are retrofitting an older chimney for improved performance or setting up a new flue system, the Increaser 3 Diameters – Ø 350 provides the flexibility needed to achieve optimal functionality. Its design ensures that it can withstand the demands of both low and high-temperature applications, making it an excellent choice for diverse heating systems.
Addressing Common Objections
- Worried about installation complexity? The user-friendly push-fit jointing system allows even less experienced installers to achieve a professional result. With clear instructions and the availability of optional accessories such as locking bands, the process is both simple and secure.
- Concerned about safety standards? The product is CE marked and meets EN1856-1 criteria, so you can trust that it adheres to the highest safety standards in the industry.
- Need additional accessories? We offer optional locking bands and jointing gaskets to further secure your installation. Check our accessories section for more options that can perfectly complement your setup.
Why Choose the Increaser 3 Diameters – Ø 350?
Selecting a flue system component is a critical decision that affects the safety and efficiency of your heating system. The Increaser 3 Diameters – Ø 350 stands out due to its robust construction, easy installation, and compliance with strict European standards. It is designed to offer peace of mind to both residential and trade customers, ensuring that your flue system performs reliably in all conditions. The added versatility means it can adapt to various installation requirements and scenarios, providing a lasting solution that grows with your system’s needs.
Final Thoughts
The Increaser 3 Diameters – Ø 350 is not just an accessory; it is a pivotal component that enhances the performance, safety, and efficiency of your flue system. Its combination of durable materials, ease of installation, and compliance with stringent safety standards make it a smart investment in any heating environment. With National Flues, you benefit from competitive pricing, expert advice, and a commitment to quality. We are proud to support both retail and trade customers with exceptional service and reliable nationwide delivery.
Make the intelligent choice for your heating system with the Increaser 3 Diameters – Ø 350.
Buy now or call 01670 206 999.
Order now for reliable performance and unmatched safety.
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