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Discover the superior performance of the Non-concentric Increaser Ø 400 by National Flues. This essential flue system accessory, crafted from 316L stainless steel, is the ideal choice for both commercial and residential applications. As a versatile and CE marked solution compliant with EN 1856-1, it offers reliable performance for boilers, ovens, and chimneys alike. Enhance your flue system with this indispensable adapter, designed to efficiently accommodate high and low temperature operations while preventing condensate pooling.
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£433.49
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Crafted from high-grade 316L stainless steel for excellent durability
Versatile design for both condensing and non-condensing systems
Complies with EN 1856-1 standards and is CE marked
Suitable for high and low temperature applications
Includes high-pressure sealing gasket ensuring secure joints
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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 2 diameters - Ø 400 is a versatile and essential element for your flue system. Crafted from 316L grade stainless steel, noted for its durability and strength, this increaser is designed with modular single wall flue systems in mind. Whether dealing with high or low temperatures, non-condensing or condensing applications, this increaser works efficiently with both negative and positive pressure systems.
Ideal for an array of applications such as boilers, ovens, and ventilation systems, it even serves as a reliable chimney shaft liner. Its high-pressure sealing gasket (P1/H1) ensures secure and safe use. The product also boasts CE marking and complies with EN 1856-1 standards, guaranteeing high quality and safety.
SKU: 3-400-104
Technical Specifications
SKU
3-400-104
Material
316L Stainless Steel
Size
u00d8 400
Certification
CE marked
Standard
EN 1856-1
Gasket
High-pressure (P1/H1)
Distance To Combustibles
50mm
Warranty
10 Years
System
SWPro
Fuels
Gas, Oil
• Ensure a minimum distance of 50mm from any combustible material such as wood or plasterboard.
• The Non-concentric Increaser is designed for a simple push-fit jointing system. Secure each joint using the recommended Locking Band.
• For P1/H1 installations, remember to fit joint gaskets on every connection to maintain a high-pressure seal.
• Always refer to the product manual for detailed instructions and safety guidelines before installation.
• If in doubt, consult a certified technician to ensure a compliant and secure installation.
It is used to increase the diameter of your flue system by two sizes while preventing condensate pooling, especially in inclined runs.
Yes, it is suitable for both high and low temperature applications, including condensing and non-condensing systems.
It is made from high-grade 316L stainless steel, ensuring durability and longevity.
Yes, it is CE marked and complies with EN 1856-1 standards for safety and quality.
Installation is straightforward with its push-fit jointing system, secured using a Locking Band. For P1 and H1 installations, joint gaskets must be fitted on every joint.
Ensure a distance of at least 50mm from the outside of the flue to any combustible material like wood or plasterboard.
Yes, it is versatile enough for both commercial and residential chimney systems.
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 Non-concentric Increaser Ø 400
The Non-concentric Increaser Ø 400 from National Flues is not only a high-quality product but also an essential component for maximising the performance of your flue system. In this detailed guide, we will explore everything you need to know about this product, its installation, and why it is the ideal accessory for your heating and ventilation requirements.
Understanding the Product
This increaser is meticulously engineered from premium 316L stainless steel, ensuring durability, longevity, and resistance to harsh environmental conditions. Designed to increase the diameter of your flue system by two sizes, it plays a crucial role in maintaining optimal performance by preventing condensate pooling, especially in inclined runs. The product complies with the EN 1856-1 standard and is CE marked, underlining its adherence to stringent quality and safety criteria.
Key Attributes:
- Made from robust 316L stainless steel
- High-pressure sealing with P1/H1 gasket, ensuring leak-proof joints
- Versatility in handling both condensing and non-condensing systems
- Suitability for a wide range of applications including residential chimneys, boilers, ovens, and more
Installation and Safety Guidelines
The installation process of the Non-concentric Increaser Ø 400 is straightforward, thanks to its push-fit jointing system. However, conforming to proper installation protocols is imperative to guarantee both efficiency and safety. Ensure that there is a minimum distance of 50mm between the external surface of the flue and any combustible material, such as wood or plasterboard. This precaution is vital for preventing any potential fire hazards.
For setups that require P1 and H1 installations, it is essential to fit joint gaskets on every connection point. Additionally, using the recommended Locking Band will secure the joints further, ensuring the integrity of the entire system. If you are unsure about the installation process or have any questions regarding compatibility, consulting a certified technician is always advisable to achieve a seamless setup.
Application and Versatility
The versatility of the Non-concentric Increaser Ø 400 makes it a smart choice for a plethora of applications. Whether you are working with a commercial boiler, a residential chimney, or even a sophisticated ventilation system, this product has the performance characteristics required to accommodate a wide range of pressure conditions. Its design, which supports both high and low temperature operations, means you do not have to worry about the system’s performance under extreme conditions.
This product is particularly beneficial in systems that experience condensate pooling. Its unique design ensures that any potential pooling is effectively mitigated, thereby safeguarding the system from damage and ensuring a longer service life. With its robust construction and high-pressure sealing capability, the Non-concentric Increaser Ø 400 is an excellent investment for those who demand both quality and reliability from their flue system accessories.
Why Choose National Flues?
National Flues has built a reputation for excellence by consistently providing customers with products of remarkable quality and durability. As a trusted supplier in the UK market, we understand that our clientele values products that perform under pressure, both literally and figuratively. This Non-concentric Increaser Ø 400 exemplifies our commitment to quality, safety, and innovation.
Our products are developed to deliver consistent performance while adhering to the highest industry standards. Coupled with our reliable nationwide delivery, competitive pricing, and dedicated customer support, National Flues ensures that you are investing in a product that is designed to stand the test of time. Our commitment to excellence is reflected in every detail of the Non-concentric Increaser, making it the ideal choice for both trade and retail customers.
Addressing Common Concerns
Many customers often express concerns about the durability and compatibility of flue system accessories. With this increaser, you can be assured of a product that has been rigorously tested and engineered to meet strict safety and performance standards. The use of 316L stainless steel not only enhances its durability but also ensures that it remains resistant to corrosion even under demanding conditions.
Another common concern is the ease of installation. We have designed this product to be user-friendly, with a straightforward push-fit system that simplifies the assembly process. Detailed installation guidelines and safety instructions are provided, ensuring that even those with minimal technical knowledge can achieve a professional and safe setup. Our customer support team is also on hand to assist with any queries or installation challenges you may encounter.
Making the Right Investment
Investing in the right flue system accessory is crucial for the overall performance and longevity of your heating or ventilation system. The Non-concentric Increaser Ø 400 is not merely an accessory but a vital component that can enhance system efficiency and safety. By preventing condensate pooling and ensuring secure, leak-proof operation, it supports the sustained performance of your broader flue system.
Choosing this product means opting for peace of mind, knowing that every detail from material quality to safety standards has been meticulously considered. In the long run, this reduces maintenance costs and contributes to a more reliable, energy-efficient system. With National Flues, you are not just buying a product; you are making a long-term investment in quality and performance.
With an impeccable blend of quality, reliability, and performance, the Non-concentric Increaser Ø 400 stands out as the superior choice for safeguarding and enhancing your flue system efficiency – buy now or call 01670 206 999.
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