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Non-concentric increaser 3 diameters - Ø 650

Elevate your commercial flue system with the Non-Concentric Increaser Ø650 from National Flues. This high-performance flue adapter, construc Read More...
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Unbeatable Value £1,117.49
including Free Delivery Buy with confidence. If you find this cheaper within 48 hours of checkout, we'll refund the difference.

At a Glance

  • Premium 316L Stainless Steel construction for exceptional durability
  • Three-step diameter increaser design optimising flue performance
  • Non-concentric design to effectively prevent condensate pooling
  • High-pressure sealing gasket (P1/H1) for secure, leak-resistant joints
  • CE approved and compliant with EN 1856-1 standards
  • Compatible with both high and low temperature, condensing and non-condensing systems
  • Secure push-fit jointing system with a Locking Band for ease of installation

 

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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.

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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:

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Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.

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

Our Non-Concentric Increaser Ø 650 is a highly efficient solution designed to increase the diameter of your flue system by three steps. Made from premium 316 grade stainless steel, it comes with a high-pressure sealing gasket P1/H1, ensuring robust performance in various environments. The SWPro modular single wall flue system is versatile, suitable for both high and low temperature, non-condensing and condensing applications with positive and negative pressure.

Perfect for boilers, ovens, ventilation systems, and as a chimney shaft liner, this increaser is crafted to meet the highest standards. Approved and CE marked, installation is straightforward with a push-fit jointing system secured by a Locking Band. Ensure a 50mm clearance from any combustible materials during installation.

SKU: 3-650-204

Technical Specifications
SKU3-650-204
Diameteru00d8 650
Material316L Stainless Steel (inner)
SealingHigh-pressure gasket P1/H1
Clearance50mm from combustibles
ApprovalsCE marked, EN 1856-1 compliant
ApplicationsBoilers, ovens, ventilation systems, chimney shaft liners
SystemSWPro modular single wall flue
Installation is straightforward with the push-fit jointing system and Locking Band. Ensure a minimum clearance of 50mm from any combustible materials. Every joint in P1 and H1 installations requires the appropriate high-pressure gaskets. Follow the manufacturer’s guidelines closely for optimal performance and safety during installation. Regular checks and maintenance are recommended to keep the system performing at its best.

A non-concentric increaser is a flue component designed to increase the diameter of a flue system by multiple steps without aligning the centres of the different sections, which helps prevent condensate pooling.

The Non-Concentric Increaser is made from high-grade 316L stainless steel, providing durability and resistance to high temperatures and corrosive flue gases.

This increaser is suitable for a wide range of applications including boilers, ovens, ventilation systems, and chimney shaft liners.

Installation requires fitting jointing gaskets on every joint in P1 and H1 installations and maintaining a 50mm distance from any combustible materials.

Yes, the SWPro system, including the Non-Concentric Increaser, is CE marked and meets the designation numbers EN 1856-1 standards.

The increaser uses a push-fit jointing system that is secured with a Locking Band for a secure connection.

Yes, National Flues offers trade accounts along with reliable delivery and secure online payments for retail customers.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, April 29th. 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. If you find it cheaper within 48 hours, we'll refund the difference.

Read our buyers guide for this Non-concentric increaser 3 diameters - Ø 650

National Flues Ltd Verdict

The Non-Concentric Increaser Ø 650 is a superb addition to any commercial flue system. Its exceptional construction and high-performance adaptability make it an essential choice. Plus, with National Flues, you benefit from unbeatable prices and nationwide delivery for both retail and trade customers.

The Non-Concentric Increaser Ø 650 is used to increase the diameter of flue systems by three steps, ideal for preventing condensate pooling in inclined runs.

National Flues is a leading supplier of fireplaces and flues, serving both retail and trade customers across the UK with unbeatable prices and reliable delivery.

 

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