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Increaser - Ø 125 (3-125-002)

National Flues presents the Increaser - Ø 125, a superior component designed to enhance your flue system. Perfect for chimney flue upgrades, this product provides a seamless solution for transitioning from smaller to larger diameters. Ideal for boilers, ovens, and ventilation systems, the Increaser - Ø 125 is a trusted choice for both commercial and residential installations, reflecting National Flues' dedication to quality and innovation in the world of flue systems.
The price you pay today £57.99
Give us a call if you find it cheaper and we'll try to price match.

 

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At a Glance

    Premium 316L stainless steel construction
    Seamless transition from smaller to larger flue diameters
    Suitable for high and low temperature applications
    Compatible with gas and oil systems
    CE marked and compliant with EN 1856-1 standards
    Designed for both commercial and domestic use
    Incorporates a secure push-fit jointing system with locking band
    Ensures safe 50mm distance from combustible materials
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, June 20th. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days then please 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 and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. 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.

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 125 is a premier component in our SWPro modular single wall flue system. Fabricated from superior 316L stainless steel, this increaser is designed to expand a smaller diameter flue to a larger one seamlessly, ensuring optimal performance and safety. The SWPro system, renowned for its robustness and versatility, is suitable for both high and low temperature settings, accommodating both non-condensing and condensing applications.

Notable for applications including boilers, ovens, and ventilation systems, it’s also ideal as a chimney shaft liner. The product adheres to the CE marking requirements, meeting the EN 1856-1 standard, and ensures a secure fit with its push-fit jointing system and locking band. Ensure that jointing gaskets are fitted for P1 and H1 installations, and always maintain a safe 50mm distance from combustible materials.

SKU: 3-125-002

Technical Specifications
ModelIncreaser - u00d8 125
Material316L Stainless Steel
Fuel CompatibilityGas, Oil
ApprovalsCE, EN 1856-1
SystemSWPro
Temperature RangeSuitable for both high and low temperature applications
Minimum Distance To Combustibles50mm
Jointing SystemPush-fit with locking band
Warranty10 Years
Application AreasBoilers, Ovens, Ventilation systems, Chimney shaft liners
During installation, ensure that all push-fit joints are securely fitted with the locking band to maintain system integrity. For P1 and H1 installations, remember to fit jointing gaskets at every connection to guarantee a correct seal. Additionally, always maintain a safe 50mm distance from any combustible materials to reduce fire risk. Follow the manufacturer's guidelines exactly to ensure a safe and efficient installation process.

The Increaser - Ø 125 is made of high-grade 316L stainless steel, known for its durability and resistance to corrosion.

Yes, it is suitable for both high and low temperature settings, covering non-condensing and condensing applications.

Absolutely, the Increaser is perfect for a wide range of applications including commercial settings like boilers and large ventilation systems.

Yes, the Increaser - Ø 125 is CE marked and complies with EN 1856-1 standards.

The joints should be secured using the provided push-fit jointing system and locking band. For P1 and H1 installations, ensure jointing gaskets are fitted at every joint.

Maintain a 50mm distance from any combustible materials such as wood or plasterboard.

Yes, National Flues offers secure online payments for retail customers in addition to trade accounts.

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