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Boiler adaptor - Ø 125 (3-125-BA-133)

Discover the exceptional quality of the SWPro Boiler Adaptor Ø 125mm from National Flues, the ideal solution for enhancing your modular flue system. This premium boiler adapter, expertly crafted from 316L stainless steel, supports both condensing and non-condensing applications. Perfect as a flue adaptor or chimney connector, our product ensures a secure and efficient link between your appliance and the exhaust system. Trust National Flues for superior performance, safety and reliability in all Read more...
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At a Glance

    Made from premium 316L stainless steel for superior durability
    Designed for both condensing and non-condensing applications
    Features a robust push-fit jointing system with a Locking Band for secure installation
    CE marked and fully compliant with EN 1856-1 standards
    Requires a minimum 50mm distance from combustible materials for safety
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.

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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.

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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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Have Questions?
Phone: 01670 206999
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The Boiler Adaptor Ø 125mm is an essential component of the SWPro modular single wall flue system. Manufactured from superior 316 grade stainless steel, it incorporates a high-pressure sealing gasket P1/H1. This adaptor is versatile and suitable for both high and low temperatures, making it applicable for non-condensing and condensing scenarios.

Ideal for a variety of applications including boilers, ovens, ventilation systems, and as a chimney shaft liner, the SWPro system is designed for seamless integration and reliable performance. CE marked and compliant with EN 1856-1 standards, it assures quality and safety. The push-fit jointing system with a Locking Band ensures easy installation, while maintaining a safe distance of 50mm from combustible materials is recommended.

SKU: 3-125-BA-133

Technical Specifications
SKU3-125-BA-133
Product NameBoiler Adaptor - u00d8 125mm
Material316L Stainless Steel
SystemSWPro Modular Single Wall Flue
Gasket TypeHigh-pressure sealing gasket (P1/H1)
Temperature RangeSuitable for both high & low temperatures
ComplianceCE marked, EN 1856-1
Distance To CombustiblesMinimum 50mm
Warranty10 Years
ApplicationBoilers, ovens, ventilation systems, chimney shaft liners
The Boiler Adaptor Ø 125mm is installed using a push-fit jointing system secured by a Locking Band. For optimal performance, ensure each joint is fitted with the correct high-pressure gasket. For installations with condensing appliances, seal the adaptor and appliance outlet with silicone sealant unless a pre-installed seal is provided. Always maintain a minimum 50mm clearance from combustible materials, such as wood and plasterboard, to prevent fire risks. Follow all manufacturer guidelines and local building regulations during installation.

The Boiler Adaptor Ø 125mm is made from high-grade 316L stainless steel, ensuring durability and corrosion resistance.

Yes, it is suitable for both condensing and non-condensing applications, handling high and low temperatures, as well as positive and negative pressure scenarios.

The adaptor uses a push-fit jointing system secured by a Locking Band. For P1 and H1 installations, jointing gaskets must be fitted on every joint. Ensure a 50mm distance from any combustible materials.

The Boiler Adaptor Ø 125mm is CE marked and complies with EN 1856-1 standards, ensuring it meets rigorous safety and performance criteria.

Yes, it is versatile enough to be used in various applications including ventilation systems, boilers, ovens, and as a chimney shaft liner.

When used with condensing appliances, the adaptor and the appliance outlet should be sealed with silicone sealant, unless the appliance incorporates a seal at the outlet.

Maintaining a 50mm distance from combustible materials, such as wood and plasterboard, is crucial to ensure safety and prevent potential fire hazards.

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