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Increaser - Ø 250 (3-250-002)

National Flues presents the Increaser - Ø 250, a premium flue adaptor meticulously engineered from 316L stainless steel for unrivalled durability. Ideal for enhancing flue systems in boilers, ovens, and ventilation applications, this CE marked component complies with EN 1856-1 standards. Upgrade your system with confidence and explore optional accessories that ensure a custom, efficient solution for your domestic and commercial heating needs.
£109.99
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 (EN 1856-1 compliant)
    * Push-fit jointing system with secure Locking Band
    * Expands flue diameter from 130ID to 150ID
    * Suitable for a range of domestic and commercial applications
    * Maintains a safe 50mm clearance from combustible materials

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 Increaser - Ø 250 is an essential component in the SWPro modular single wall flue system. Constructed from high grade 316L stainless steel, this increaser is designed to enhance flue diameter from one size to another, making it ideal for a range of applications, including boilers, ovens, ventilation systems, and chimney shaft liners. It features a high-pressure sealing gasket for P1 and H1 installations and ensures reliable performance in both condensing and non-condensing applications.

The push-fit jointing system with a securing Locking Band offers ease of installation, while maintaining a safe distance of 50mm from any combustible materials. CE marked and meeting rigorous European standards, the Increaser - Ø 250 ensures safety and efficiency.

SKU: 3-250-002

Technical Specifications
SKU3-250-002
Increaser Sizeu00d8 250
Material316L Stainless Steel
StandardEN 1856-1
SystemSWPro
Suitable ApplicationsBoilers, Ovens, Ventilation, Chimney Liners
FuelsGas, Oil
Minimum Clearance50mm
Warranty10 Years
Installation MethodPush-fit jointing with Locking Band
ApprovalCE Marked
• Ensure that all installation work is performed in accordance with the manufacturer’s guidelines and adhere strictly to the 50mm clearance requirement from combustible materials. • Install the high-pressure sealing gasket at every joint in P1 and H1 installations for a secure, leak-free fit. • Use the push-fit jointing system to quickly and effectively join sections, and secure each connection with the provided Locking Band. • Consider optional accessories such as additional sealing kits or supporting flue adaptors to further enhance the safety and efficiency of your installation. • Always consult the detailed installation manual and, if necessary, employ a qualified professional to assist with the setup. • Warning: Improper installation may result in safety hazards, including potential gas leaks and reduced system performance. Always double-check connections and clearance distances.

The Increaser - Ø 250 is made from high grade 316L stainless steel, ensuring durability and resistance to corrosion.

Yes, the Increaser - Ø 250 is suitable for both high and low temperature applications, accommodating both non-condensing and condensing environments.

The Increaser - Ø 250 features a push-fit jointing system secured with a Locking Band. Jointing gaskets must be fitted on every joint in P1 and H1 installations.

A minimum clearance of 50mm must be maintained from any combustible material such as wood or plasterboard.

Yes, the Increaser - Ø 250 is CE marked and complies with the standard EN 1856-1.

The Increaser - Ø 250 is ideal for boilers, ovens, ventilation systems, and as a chimney shaft liner.

Yes, the Increaser - Ø 250 is designed to handle flue gases 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 Tuesday, May 20th. 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 Increaser - Ø 250 buyers guide

Transform your flue installation today with the Increaser - Ø 250 – add to cart or call 01670 206 999 now!

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