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Cone - Ø 400 (3-400-093)

Discover the exceptional Cone - Ø 400 from National Flues, a premium stainless steel flue terminal engineered for superior performance and durability. Designed to meet rigorous European standards, this high-quality Cone - Ø 400 combines robust construction with innovative push-fit technology, ensuring optimal flue gas evacuation and reduced pluming effects. Ideal for a variety of installations including boilers, ovens, ventilation systems and chimney shaft liners, this flue terminal embodies both efficiency and safety. Whether you are upgrading your current system or embarking on a new installation, the Cone - Ø 400 offers a versatile solution tailored to both residential and commercial appl Read More...
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£166.99
with free delivery Give us a call if you find it cheaper and we'll try to price match.

 

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At a Glance

  • High-grade 316L Stainless Steel construction
  • CE marked and compliant with EN 1856-1 standards
  • Innovative SWPro push-fit jointing and locking band system
  • Engineered for minimal resistance to flue gas evacuation
  • Effective reduction of pluming through increased exit velocity
  • Suitable for gas and oil applications in both high and low temperatures
  • Robust design for diverse residential and commercial installations

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.

Have Questions?
Phone: 01670 206999
Email: [email protected]

The Cone - Ø 400 is part of our exceptional SWPro single wall flue system, designed for robustness and versatility. Crafted from high-grade 316L stainless steel, this modular flue integrates a high-pressure sealing gasket P1/H1, making it suitable for a wide range of applications including boilers, ovens, ventilation systems, and chimney shaft liners. The SWPro system can handle both high and low temperatures, as well as non-condensing and condensing applications in positive and negative pressures.

The system is CE marked and adheres to rigorous standards (EN 1856-1) to ensure safety and performance. It features a simple push-fit jointing system secured with a locking band, and a mandatory 50mm clearance from combustible materials for safe installation.

SKU: 3-400-093

Technical Specifications
SKU3-400-093
Material316L Stainless Steel
SystemSWPro
FuelsGas, Oil
ApprovalsCE, EN 1856-1
Clearance50mm from combustibles
Warranty10 Years
Diameteru00d8 400
Installation of the Cone - Ø 400 is straightforward yet demands careful adherence to safety guidelines. Begin by ensuring that a minimum clearance of 50mm from any combustible material is maintained. The push-fit jointing system, secured with the provided locking band, simplifies setup—however, always inspect the high-pressure sealing gasket (P1/H1) for proper engagement. For best results, use our optional accessories, such as additional sealing bands or thermal insulation kits, to enhance performance and ensure a long-lasting, secure fit. It is highly recommended to have installation conducted or inspected by a certified professional to guarantee compliance with safety standards.

The Cone - Ø 400 is manufactured from high-grade 316L stainless steel, ensuring durability and longevity.

Yes, the Cone - Ø 400 conforms to EN 1856-1 and is CE marked, ensuring it meets European quality and safety standards.

This flue terminal is ideal for boilers, ovens, ventilation systems, and as a chimney shaft liner, making it a versatile component for various installations.

The Cone - Ø 400 is a modular device with a push-fit jointing system secured by a locking band. Ensure a 50mm clearance from combustible materials for safe installation.

The Cone - Ø 400 is designed to accommodate both high and low temperatures, making it adaptable for a variety of use cases.

Yes, this terminal reduces the effects of pluming by slightly increasing the exit velocity of the flue gases.

Absolutely. The Cone - Ø 400 is designed to work efficiently in both positive and negative pressure environments.
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.

Read our review in our Cone - Ø 400 buyers guide

Transform your installation experience and secure superior performance—order your Cone - Ø 400 today!

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