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National Flues proudly offers the Non-Concentric Increaser 3 Diameters - Ø 450, a premium accessory designed for commercial flue systems. This robust flue increaser, crafted from 316L stainless steel, is engineered to fit seamlessly with boilers, ovens, and ventilation systems. As a certified CE product and part of the SWPro range, it meets strict European standards while offering versatility in both condensing and non-condensing applications. Enhance your chimney, flue, or duct system with this essential component, known for its reliability and easy push-fit installation.
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£670.49
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Made from high-grade 316L stainless steel
Modular push‐fit jointing system with locking band
Designed to increase flue system diameters by three sizes
CE marked, compliant with EN 1856-1 standards
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.
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 Non-concentric increaser 3 diameters - Ø 450 from our SWPro range is a versatile and essential component for any commercial flue system. Constructed from high-grade 316L stainless steel, this modular single wall flue system is robust and reliable. It features a high-pressure sealing gasket (P1/H1), making it suitable for various applications including high and low-temperature settings, and both condensing and non-condensing environments.The SWPro system is perfect for boilers, ovens, ventilation systems, and as a chimney shaft liner.
Its CE marking ensures it meets stringent European standards (EN 1856-1: T200 H1 W Vm L50040 O(50) for diameters Ø 80 up to Ø 200 and EN 1856-1: T200 H1 W Vm L50050 O(50) for diameters Ø 250 up to Ø 400). Installation is straightforward with a push-fit jointing system secured by a locking band. For optimal safety, ensure a 50mm clearance from any combustible materials.
SKU: 3-450-204
Technical Specifications
SKU
3-450-204
Material
316L Stainless Steel
System
SWPro
CE Standard
EN 1856-1
Applicable Diameters
u00d8 80 up to u00d8 200; u00d8 250 up to u00d8 400
Clearance
50mm from combustibles
Sealing
High-pressure sealing gasket (P1/H1)
Installation
Push-fit jointing secured by a locking band
Suitable Fuels
Gas, Oil
Warranty
10 Years
• Ensure all joints are fitted with the appropriate gaskets for P1/H1 installation.
• Use the push-fit jointing system to secure connections; ensure the locking band is firmly in place.
• Maintain a clearance of at least 50mm from any combustible materials to ensure safety.
• Follow manufacturer guidelines and local building regulations for a compliant installation.
• Regularly inspect the joints and fittings for long-term maintenance.
It is used to increase the diameter of a flue system by three sizes, particularly useful in inclined runs to avoid condensate pooling.
The increaser is made from high-grade 316L stainless steel, ensuring durability and longevity.
Yes, the Non-Concentric Increaser 3 Diameters - Ø 450 is CE marked and meets European standards EN 1856-1.
It supports both high and low temperatures, non-condensing and condensing applications, and positive and negative pressure environments.
It features a modular push-fit jointing system secured by a locking band. Ensure jointing gaskets are fitted on every joint for P1 and H1 installations.
Ensure there is at least 50mm clearance from any combustible materials such as wood or plasterboard.
It is suitable for a range of applications including boilers, ovens, ventilation systems, and chimney shaft liners.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Wednesday, April 30th.
If you need faster stove or fireplace delivery please give us a call.
We can often 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 Non-Concentric Increaser 3 Diameters - Ø 450
Whether you are a contractor, installer, or a homeowner with a keen interest in quality heating and ventilation products, understanding the full scope of the Non-Concentric Increaser 3 Diameters - Ø 450 is essential to making an informed decision.
Product Overview and Key Features
The Non-Concentric Increaser is engineered to expand the diameter of your existing flue system by three sizes, addressing challenges such as condensate pooling in inclined runs. Crafted from durable 316L stainless steel, this product is designed to deliver performance under both high and low-temperature conditions. Its modular push-fit jointing system not only simplifies installation but also ensures leak-free performance through a secure locking band. The product is CE marked and compliant with the EN 1856-1 standard, underscoring its quality and safety credentials.
Ensuring Quality and Safety
Quality and safety are at the core of what we offer. The stainless steel construction guarantees long-lasting durability even in the harshest operating environments. The built-in high-pressure sealing gasket meets P1/H1 requirements, ensuring that the connections remain secure over time. Maintaining a 50mm clearance from combustible materials is a critical safety feature that protects your installation and complies with local standards.
Technical Specifications in Detail
A well-designed flue system is not just about aesthetics but also about meeting precise technical requirements. The Non-Concentric Increaser offers:
• Reliable material properties with 316L stainless steel.
• Designed for a range of diameters from Ø 80 up to Ø 200 and from Ø 250 up to Ø 400 as per EN standards.
• Compatibility with both gas and oil fuel systems, making it a versatile solution.
• A robust push-fit system that minimizes installation time and reduces labour costs.
Installation Guidelines and Best Practices
Installing the increaser is straightforward when you follow the detailed step-by-step process:
1. Before installation, inspect all components and ensure that all joints are clean and free of debris.
2. Fit a suitable gasket at each push-fit joint to ensure a tight seal, which is crucial for both P1 and H1 installations.
3. Secure the components using the locking band provided, which further stabilises the connection.
4. Observe the mandatory 50mm clearance from any combustible materials, such as wood and plasterboard, throughout the setup.
5. After installation, verify that all connections are secure and test the system in safe operating conditions.
Evaluating the Value and Cost Efficiency
When considering an investment in a new flue system component, cost efficiency and long-term performance are significant factors. Although the upfront price may appear higher than some alternatives, the long-term benefits of reduced maintenance costs, durability, and safety compliance pay dividends over time. The reliability offered by the SWPro-certified system ensures that you are not only purchasing a product but securing peace of mind. Many professionals have chosen this solution for the reliability it brings to both traditional and modern commercial settings.
Addressing Common Objections
It is common for buyers to have concerns regarding installation difficulties, durability under high temperatures, and compatibility with existing systems. Our Non-Concentric Increaser has been specifically designed to overcome these challenges: Installation Concerns: With its modular design and push-fit system, installation is both straightforward and time-efficient, even for those with limited technical experience. Durability and Material Strength: Constructed from high-grade 316L stainless steel, this product is resilient against corrosion and thermal fatigue, ensuring it remains reliable even under high stress conditions. System Compatibility: The product is engineered for use in both condensing and non-condensing environments and is suitable for various fuels, making it a flexible option for diverse installation scenarios.
Warranty and After-Sales Support
Investing in quality products means also having access to robust customer support. The product comes with a 10-year warranty, reflecting our confidence in its performance and durability. Moreover, National Flues is committed to providing detailed installation support and after-sales service, ensuring that your flue system operates at peak efficiency year after year.
Final Thoughts and Recommendations
Every component in a flue system plays a crucial role in overall performance and safety. The Non-Concentric Increaser 3 Diameters - Ø 450 is no exception; it offers both technical excellence and ease of installation, making it an ideal choice for modern commercial applications. In addition to its robust construction and compliance with safety standards, the product's design prioritises efficient installation and long-term operational reliability.
For those who value quality, durability, and safety, this increaser represents an excellent investment in your commercial flue system's future. Ensure that your installation meets all safety norms by following the recommended guidelines and enjoying the peace of mind that comes with a product backed by a 10-year warranty. It is time to upgrade your system with a component that not only performs reliably but also contributes to efficient system operation in demanding environments.
Add this product to your cart today or call 01670 206 999.
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