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Boiler adaptor - Ø 100 (3-100-BA-083)

The Boiler Adaptor Ø 100 from National Flues is a premium quality component, ideal for reliable flue connections and efficient chimney systems. Engineered from 316L stainless steel and CE marked to EN 1856-1 standards, this flue adaptor stands out in quality and safety. Whether you are upgrading your boiler, oven, or ventilation system, our modular flue solutions offer unparalleled performance, making our product a perfect choice for all your flue and chimney installation needs.
The price you pay today £42.99
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At a Glance

    High-grade 316L stainless steel construction for exceptional durability
    Compatible with SWPro modular single wall flue systems
    Designed for both high and low temperature applications
    CE marked and compliant with EN 1856-1 standards
    Easy push-fit jointing secured by a robust locking band and high-pressure sealing gasket (P1/H1)
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, June 24th. 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:

  • Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
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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.

Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).

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

The Boiler Adaptor Ø 100 is a critical component in the SWPro modular single wall flue system. Constructed from high-grade 316L stainless steel, it offers exceptional durability and reliability. This adaptor is designed to handle both high and low temperature applications, working efficiently with non-condensing and condensing systems in both positive and negative pressure environments.

Ideal for a variety of applications including boilers, ovens, and ventilation systems, the SWPro system boasts a high-pressure sealing gasket (P1/H1) and push-fit jointing secured by a locking band. It is CE marked under EN 1856-1 standards, ensuring safety and compliance. For installations, maintain a 50mm distance from any combustible materials and use silicone sealant to enhance sealing performance.

SKU: 3-100-BA-083

Technical Specifications
Material316L Stainless Steel
Adaptor Sizeu00d8 100
Applicable SystemsSWPro Modular Single Wall Flue
StandardsCE Marked (EN 1856-1)
Fuel CompatibilityGas, Oil
Installation Clearance50mm gap from combustible materials
Sealing MethodHigh-pressure sealing gasket (P1/H1) and optional silicone sealant
Warranty10 Years
Before installation, ensure that all surfaces are clean and free from debris. The Boiler Adaptor Ø 100 is designed for a push-fit jointing system with a locking band that securely fastens the connection. Always maintain a minimum distance of 50mm from any combustible materials for safety. For condensing appliances, it is strongly recommended to seal both the adaptor and the appliance outlet with a high-quality silicone sealant unless a built-in seal is provided. Optional accessories, such as extra locking bands or enhanced sealants, may be considered to further improve the joint integrity and long-term performance. Always verify that gasket joints are in place for every connection where the high-pressure sealing gasket (P1/H1) is required.

The adaptor is made of high-grade 316L stainless steel, ensuring long-lasting durability and resistance to corrosion.

Yes, this adaptor is versatile and designed to handle both high and low-temperature applications in non-condensing and condensing systems.

The adaptor is CE marked and complies with EN 1856-1 standards, ensuring it meets stringent safety and performance criteria.

The SWPro modular flue system uses a push-fit jointing system secured with a locking band. For P1 and H1 installations, jointing gaskets must be fitted on every joint. Ensure a 50mm gap from any combustible materials.

Yes, for condensing appliances, it is recommended to seal the adaptor and appliance outlet with silicone sealant unless the appliance comes with a built-in seal.

This adaptor is suitable for use in boiler flues, oven exhausts, ventilation systems, and as a chimney shaft liner.

The P1/H1 high-pressure sealing gasket ensures a secure and leak-free connection, making the system suitable for both positive and negative pressure environments.

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