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Increaser - Ø 400 (3-400-002)
National Flues presents the Increaser Ø 400, a premium stainless steel flue adapter engineered for optimal performance. As an integral part of the SWPro system, this versatile increaser is perfect for enhancing boilers, ovens, and ventilation installations. With strict compliance to EN 1856-1 and CE standards, this flue accessory offers reliability and efficiency for both domestic and commercial applications.
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£196.49
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Crafted in premium 316L stainless steel for exceptional durability and corrosion resistance
Suitable for both condensing and non-condensing applications
Optimised for high and low temperature environments
Designed with a push-fit jointing system and secure Locking Band for ease of installation
Meets stringent EN 1856-1 and CE safety standards
Versatile use in boilers, ovens, ventilation systems and as a chimney shaft liner
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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 Ø 400 from our SWPro range is a vital component for any flue system requiring diameter adjustments. Crafted from premium 316L grade stainless steel, this increaser ensures durability and longevity. SWPro is a modular single-wall flue system, making it highly adaptable to various setups like boilers, ovens, ventilation systems, and chimney shaft liners.
Designed to handle both high and low temperatures, as well as condensing and non-condensing applications, it meets stringent CE standards for quality and safety (EN 1856-1). The installation is hassle-free with an intuitive push-fit jointing system and a secure Locking Band. For P1 and H1 applications, joint gaskets are essential for every connection, and a safe 50mm clearance from combustible materials must be maintained.
Push-fit jointing system with secure Locking Band; joint gaskets required for P1/H1 applications
Clearance
Minimum 50mm from combustible materials
Warranty
10 Years
Fuels
Gas, Oil
Ensure that all push-fit connections are made correctly and verify that the secure Locking Band is in place. For P1 and H1 applications, always install joint gaskets on every connection. Maintain a minimum clearance of 50mm from any combustible materials as per the safety guidelines. Follow the EN 1856-1 standards and refer to the installation manual provided with the product for detailed instructions and safety warnings.
The Increaser Ø 400 is made from high-quality 316L grade stainless steel, known for its durability and resistance to corrosion.
Yes, the SWPro Increaser Ø 400 is suitable for both non-condensing and condensing applications, making it highly versatile.
The Increaser Ø 400 features a push-fit jointing system secured with a Locking Band. For P1 and H1 applications, gaskets must be fitted on every joint, and a 50mm clearance from combustible materials must be maintained.
The Increaser Ø 400 complies with CE standards, particularly EN 1856-1, ensuring it meets stringent safety and quality requirements.
Yes, the SWPro Increaser Ø 400 is designed to handle both high and low temperatures, providing flexibility for various applications.
The Increaser Ø 400 is ideal for boilers, ovens, ventilation systems, and as a chimney shaft liner, making it a versatile component in many setups.
Yes, National Flues provides trade accounts and ensures reliable national delivery for all customers.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Thursday, May 1st. 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.
Comprehensive Buyers Guide for the Increaser Ø 400
Welcome to our in-depth guide on the Increaser Ø 400, a high-quality, stainless steel flue adapter designed to meet the demands of modern heating and ventilation systems. Manufactured by National Flues as part of the renowned SWPro series, this product offers exceptional performance and durability backed by CE and EN 1856-1 certifications. In this guide, we detail its features, benefits, installation procedures, and address common objections to ensure you make an informed decision.
Product Overview
The Increaser Ø 400 is engineered from premium 316L stainless steel, ensuring longevity even under extreme conditions. Its design accommodates both condensing and non-condensing applications, making it an ideal choice for a diverse range of heating appliances. Whether used in boilers, ovens, or ventilation systems, this flue adapter brings efficiency, safety, and flexibility to your installation. It seamlessly bridges the gap when transitioning between different flue diameters, thereby enhancing overall system performance.
Key Features and Benefits
- Durability and Strength: Crafted in 316L stainless steel, the Increaser Ø 400 is built to withstand high temperatures and resist corrosion. This ensures that your flue system remains robust and efficient over many years.
- Versatile Application: Suitable for use with gas and oil-fuelled appliances, this adapter provides a reliable solution for both residential and commercial installations. Its versatility means it can be integrated into various systems, including boilers, ovens, and even chimney shaft liners.
- Ease of Installation: Featuring a push-fit jointing system with a secure Locking Band, the installation process is straightforward. This design reduces installation times and helps minimise the potential for errors during setup. Always remember to apply joint gaskets on every connection in accordance with P1 and H1 applications.
- Compliance and Safety: The product meets stringent EN 1856-1 standards and carries CE approval, assuring you of its quality and safety. Furthermore, its design obliges a mandatory 50mm clearance from combustible materials, thus enhancing the overall safety of your installation.
Addressing Common Objections
Objection: Installation Complexity
Some customers might worry that installing a component like the Increaser Ø 400 could be complex. However, the simplified push-fit system and the secure Locking Band ensure a hassle-free installation. Clear and comprehensive instructions are provided, and should any questions arise, professional support is readily available.
Objection: Long-Term Reliability
Concerns regarding long-term performance in harsh environments are common. The utilisation of 316L stainless steel guarantees high resistance to corrosion and degradation, ensuring that the increaser not only performs reliably today but continues to do so for many years under both condensing and non-condensing conditions.
Objection: Compatibility with Existing Systems
Another concern might be whether the Increaser Ø 400 is compatible with your current flue system. Its modular design and adherence to industry standards make it exceptionally flexible, allowing for seamless integration with a variety of systems such as boilers, ovens, and ventilation shafts. This ensures that even if you are upgrading or modifying an existing installation, the Increaser Ø 400 is a dependable choice.
Installation and Safety Guidelines
Before commencing installation, it is crucial to prepare your workspace in accordance with the safety norms. Ensure that the area around the installation is clear and that a minimum of 50mm clearance is maintained from any combustible materials. The push-fit jointing system must be followed precisely, and for any P1 or H1 applications, joint gaskets must be fitted on every connection to maintain a secure and safe installation. Always refer to the product manual and safety instructions provided by National Flues to avoid any potential risks.
Maintenance and Longevity Considerations
Maintaining your flue system is as important as the quality of its components. The stainless steel construction of the Increaser Ø 400 makes it easy to clean and maintain, ensuring long-term reliability. Regular checks and adherence to maintenance guidelines can prevent issues before they arise. It is recommended to inspect the push-fit connections periodically and verify that all safety clearances are observed consistently. Should you encounter any problems, contacting a licensed professional is advisable to maintain system integrity and safety.
Optional Accessories
To further enhance the functionality and performance of your flue system, we offer a range of optional accessories. These accessories include additional push-fit components, specialised joint gaskets, and customised insulation options designed specifically for the SWPro system. These accessories are designed to work in tandem with the Increaser Ø 400 to provide a comprehensive, tailor-made solution for your heating installation needs. We encourage you to explore these options to fully optimise your system.
Final Considerations
When selecting a flue system component, quality, safety, and ease of installation are paramount. National Flues is committed to providing products that not only meet but exceed industry standards. The Increaser Ø 400 offers a robust, reliable, and efficient solution that is backed by excellent customer service and support. Whether upgrading an existing system or embarking on a new installation, the Increaser Ø 400 is a smart investment that ensures performance and peace of mind for years to come.
This comprehensive guide has provided detailed insights into the Increaser Ø 400, addressing key features, benefits, installation procedures, and maintenance tips, along with optional accessory suggestions to complete your system. We trust that you now have all the information necessary to make an informed decision about upgrading your flue system with this high-performance adapter.
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