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Increaser 2 diameters - Ø 400 (3-400-102)
National Flues presents the Increaser 2 Diameters - Ø 400, a premium stainless steel flue adapter designed for optimal performance in a range of heating and ventilation applications. This quality product, ideal for boilers, ovens, and chimney shaft liners, combines innovative push-fit technology with strict adherence to EN 1856-1 standards. Upgrade your flue system with this versatile adapter to ensure reliability, efficiency, and safety. Explore our optional accessories to fully customise your installation for superior results.
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£316.49
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Constructed from high-grade 316L stainless steel
CE marked and compliant with EN 1856-1
Versatile for both high and low temperature applications
Simple push-fit jointing system with a secure Locking Band
Suitable for positive and negative pressure flue systems
Maintains a safe 50mm clearance from combustible materials
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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 400 from National Flues is part of the SWPro modular single wall flue system. Crafted from high-grade 316L stainless steel, it features a high-pressure sealing gasket (P1/H1). This universal increaser is versatile for both high and low temperatures, handling non-condensing and condensing applications with flue gases under positive and negative pressure.
Ideal for various uses such as boilers, ovens, and ventilation systems, this increaser also serves well as a chimney shaft liner. CE marked and conforming to EN 1856-1 standards, it ensures the highest quality and safety. Installation is a breeze with its push-fit jointing system secured by a Locking Band, and joint gaskets are a must for P1 and H1 installations.
Maintain a 50mm clearance from any combustible materials during installation.
Capable of managing both positive and negative pressures
Minimum Clearance
50mm from combustible materials
Warranty
10 Years
• Ensure that the push-fit jointing system is correctly aligned before securing with the Locking Band.
• Always install the high-pressure sealing gaskets (P1/H1) for a leak-proof connection.
• Maintain a minimum clearance of 50mm from any combustible materials for safety.
• Follow manufacturer guidelines and local building regulations during installation.
• Consult the comprehensive instruction manual for detailed step-by-step installation procedures.
The increaser is made of high-grade 316L stainless steel, ensuring durability and resistance to corrosion.
Yes, this product is CE marked, conforming to the EN 1856-1 standards, ensuring compliance with European safety and performance requirements.
The increaser is versatile and can be used in boilers, ovens, ventilation systems, and as a chimney shaft liner. It handles both high and low temperatures and accommodates non-condensing and condensing applications.
A clearance of 50mm from the outside of the flue to any combustible materials such as wood or plasterboard is recommended.
Installation is straightforward with its push-fit jointing system secured by a Locking Band. Ensure joint gaskets are fitted for P1 and H1 installations.
The high-pressure sealing gasket (P1/H1) ensures a secure, leak-proof connection, enhancing the performance and safety of the flue system.
Yes, this increaser is designed to handle flue gases in both positive and negative pressure conditions.
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 2 Diameters - Ø 400
When selecting a flue adapter for your heating or ventilation system, it is essential to consider not only the product's build quality but also its compatibility with other system components. The Increaser 2 Diameters - Ø 400 from National Flues is engineered to meet the highest standards with its durable 316L stainless steel construction and CE marked compliance under EN 1856-1. In this guide, we will explore everything you need to know before purchasing this innovative product, along with potential optional accessories that can enhance your installation.
Understanding the Product
The Increaser 2 Diameters - Ø 400 is a versatile adapter designed to enlarge the diameter of your existing flue system reliably. Its robust design means that it is suitable for both high and low temperature applications. Whether you are upgrading an old system or fitting a new installation, this adapter is designed to handle the demanding conditions associated with modern boilers, ovens, and ventilation setups. With the capability to manage both positive and negative pressure, this product ensures that your flue performs efficiently under all conditions.
Key Features and Their Benefits
Durability and Quality: The use of high-grade 316L stainless steel means that the product is not only strong but also resistant to corrosion. This is critical in flue systems, where exposure to high temperatures and chemicals can lead to premature wear and tear. By choosing this product, you are investing in long-term reliability.
Safety and Compliance: Compliance with EN 1856-1 and CE marking guarantees that this product meets rigorous European standards for safety. This assures you that the adapter is suitable for a wide range of applications, providing safe operation even under challenging conditions.
Ease of Installation: The push-fit jointing system significantly reduces the complexity and time required for installation. This user-friendly feature is particularly beneficial for professionals and DIY enthusiasts alike, ensuring a secure fit with minimal effort. The inclusion of a Locking Band further secures the connection, providing an optimal performance that minimizes the risk of leaks.
Versatility: Being able to handle both high and low temperatures and operating under both positive and negative pressures makes this adapter an incredibly versatile option. It is ideal for a variety of installations, including boilers, ovens, and chimney shaft liners.
Safety Clearances: The Increaser requires a minimum clearance of 50mm from combustible materials. This is a critical specification that enhances safety by preventing potential fire hazards. Always ensure that this clearance is maintained during installation for optimal system safety.
Optional Accessories and Their Role
While the Increaser 2 Diameters - Ø 400 is designed to work as an independent solution, there are optional accessories available that can further optimise your flue system. For example, various joint gaskets, additional locking bands, and insulating materials may provide extra security and efficiency. It is always advisable to explore these options to tailor the product to your specific needs. By pairing the adapter with complementary accessories, you can ensure a more robust and secure installation that maximises the performance of your entire system.
Installation and Best Practices
Before beginning the installation, it is important to thoroughly read the provided installation manual. The process is straightforward: ensure that all components fit securely, and always use the high-pressure sealing gaskets (P1/H1) for a leak-proof connection. If you are unsure about any procedures, consulting a professional installer might be beneficial. Remember, the proper setup of your flue system not only enhances performance but also extends the longevity of your equipment.
Overcoming Common Objections
Cost: Some buyers may be concerned about the initial cost of a high-quality product like the Increaser 2 Diameters - Ø 400. However, the long-term benefits of durability, safety, and reduced maintenance make it a cost-effective investment. When compared to cheaper alternatives that might fail prematurely, this adapter offers substantial savings over time.
Complexity of Installation: The ease of installation we have mentioned repeatedly is a significant advantage. The design is focused on minimizing installation time and reducing errors, thus overcoming any hesitation regarding its setup. With accessible instructions and optional support, even less experienced installers can achieve a professional finish.
Compatibility: Some customers might worry about whether the product will integrate seamlessly with their current system. National Flues’ reputation for quality and compatibility ensures that this product works well with a variety of system components. Additional optional accessories further enhance compatibility, allowing you to tailor the setup to your specific requirements.
Final Thoughts
The Increaser 2 Diameters - Ø 400 is a standout product in the realm of flue system adapters. Combining robust construction with advanced engineering, it caters to both professional and domestic applications with ease. Its design not only meets but exceeds industry standards, delivering an exceptional level of safety, efficiency, and reliability. Whether you are upgrading an existing system or installing a new one, this adapter is an investment in quality and performance.
For those looking to benefit from additional features, optional accessories such as enhanced gaskets, extra locking bands, and insulation kits are available to further optimise your system. These accessories ensure that every aspect of your installation is fine-tuned for peak performance, safeguarding your setup against any potential issues while maximising efficiency.
**In summary, the Increaser 2 Diameters - Ø 400 offers:
- Superior build quality with 316L stainless steel
- Certified safety through CE marking and EN 1856-1 compliance
- Easy and secure installation using a push-fit system with a Locking Band
- Versatile performance adaptable to various temperature and pressure conditions
- Optional accessories to fully customise your installation**
Every aspect of this product is engineered to offer reliability and long-term performance. Its smart design and the availability of optional accessories provide you with the freedom to customise and enhance your flue system as needed. With safety and efficiency at its core, the Increaser 2 Diameters - Ø 400 is the perfect choice for ensuring a trouble-free operation.
We invite you to explore our range of complementary accessories, which further ensure that your flue system performs at its best. Whether you have questions about installation, compatibility, or the benefits of the accessory range, our team is ready to support you at every step.
Add the Increaser 2 Diameters - Ø 400 to your cart or call 01670 206 999 now.
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