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Boiler adaptor - Ø 125 (3-125-BA-108)

Discover the robust and reliable Boiler Adaptor - Ø 125 from National Flues, a top choice within the SWPro modular single wall flue system range. Crafted from premium 316L stainless steel, this adaptor is engineered for both high and low temperature applications and is an ideal solution for connecting boilers, ovens, and ventilation systems. With its CE marking and compliance to EN 1856-1 standards, National Flues guarantees a product that excels in durability, efficiency, and safety. Perfect fo Read more...
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At a Glance

    Made from high-grade 316L stainless steel for exceptional durability
    CE marked and compliant with EN 1856-1 standards
    Versatile use for boilers, ovens, and various heating appliances
    Secure push fit jointing system with a locking band for easy installation
    Designed for both high and low temperature applications, suitable for gas and oil systems
    Maintains a 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.

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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.

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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]

The Boiler adaptor - Ø 125 is a crucial component in the SWPro modular single wall flue system. Made from high-grade 316L stainless steel, this adaptor promises durability and superior performance. Designed for both high and low temperature applications, it handles flue gasses in both positive and negative pressure environments.

Whether it's for your boiler, oven, ventilation system, or as a chimney shaft liner, the SWPro system ensures efficiency and safety. CE marked and adhering to EN 1856-1 standards, reliability is guaranteed. The push fit jointing system secured with a locking band ensures easy installation.

For added security, jointing gaskets should be used in P1 and H1 installations, maintaining a safe distance of 50mm from combustible materials.

SKU: 3-125-BA-108

Technical Specifications
SKU3-125-BA-108
ItemBoiler Adaptor - u00d8 125
Material316L Stainless Steel (Inner); N/A (Outer)
StandardsCE Marked, EN 1856-1 compliant
SizesDesigned for u00d8 125, suitable for dimensions up to u00d8 200/u00d8 400 depending on installation
FuelsGas, Oil
InstallationPush fit jointing with locking band; use jointing gaskets in P1/H1 installations
Safety50mm clearance from combustible materials
Warranty10 Years
The installation of the Boiler Adaptor - Ø 125 is straightforward. Begin by ensuring all components of your SWPro flue system are in place. Use the push fit jointing system to connect the adaptor, and secure the connection with the provided locking band. For P1 and H1 compliant installations, it is essential to use jointing gaskets at every junction to maintain system integrity. When fitting on condensing appliances, apply silicone sealant to the adaptor and appliance outlet unless an alternative seal is already present. Always maintain a minimum clearance of 50mm from any combustible materials to ensure safety.

The Boiler Adaptor - Ø 125 is made from high-grade 316L stainless steel, ensuring long-lasting durability and excellent performance.

Yes, the adaptor is suitable for both residential and commercial applications, including boilers, ovens, ventilation systems, and as a chimney shaft liner.

The Boiler Adaptor - Ø 125 complies with EN 1856-1 safety standards and is CE marked, ensuring high safety and quality standards.

The adaptor uses a push fit jointing system secured with a locking band. For P1 and H1 installations, make sure to use jointing gaskets at every joint and maintain a 50mm distance from combustible materials.

Yes, it is recommended to use silicone sealant to seal the adaptor and appliance outlet when used on condensing appliances unless the appliance already has a seal at the outlet.

The Boiler Adaptor - Ø 125 is suitable for high and low-temperature applications, making it versatile for various heating and ventilation needs.

You can purchase the Boiler Adaptor - Ø 125 from National Flues, with secure online payments and reliable nationwide delivery available for both retail and trade customers.

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