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Elbow 45° - Ø 100 (3-100-031)

Introducing the Elbow 45° - Ø 100 by National Flues. This premium stainless steel flue component is engineered for excellence in both residential and commercial installations. Enhance your chimney system with this high-quality, durable, and safety-certified component, designed to deliver optimal performance in various heating and ventilation applications. Keywords: flue elbow 45°, stainless steel, SWPro, EN 1856-1, chimney component, safe installation.
The price you pay today £34.99
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At a Glance

    Made from premium 316L stainless steel for superior durability and corrosion resistance
    CE marked and compliant with EN 1856-1 for guaranteed safety
    Versatile design suitable for both positive and negative pressure applications
    Easy push-fit installation with a secure locking band for a reliable seal
    Engineered to perform in both high and low temperature environments
    Requires a 50mm clearance from combustible materials to ensure safe operation
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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Have Questions?
Phone: 01670 206999
Email: [email protected]

The Elbow 45° - Ø 100 is part of the renowned SWPro modular single wall flue system, constructed from 316L grade stainless steel. Featuring a high-pressure sealing gasket (P1/H1), this elbow is ideal for multiple applications, from heating boilers to chimney shafts. The SWPro system is suitable for both high and low temperature environments, as well as condensing and non-condensing conditions, making it a versatile choice for positive and negative pressure scenarios.

This elbow is CE marked and adheres to the DIN EN 1856-1 standard, ensuring superior quality and safety. Installation is simplified with a push-fit system and secure locking band, and every joint requires a gasket for P1 and H1 installations. To maintain safety, ensure a 50mm distance from any combustible materials.

SKU: 3-100-031

Technical Specifications
Material316L Stainless Steel
Sizeu00d8 100
Angle45u00b0
SystemSWPro
ComplianceEN 1856-1, CE Marked
InstallationPush-fit with locking band
Clearance50mm from combustibles
Warranty10 Years
ApplicationsBoilers, ovens, chimney shafts, ventilation systems
Installation Guidelines: • Ensure each joint incorporates the required sealing gasket (P1/H1) to maintain system integrity. • Secure the joints using the push-fit method along with the provided locking band. • Always maintain a minimum 50mm clearance from any combustible materials during installation. • Follow the detailed installation instructions provided in the user manual to maximise safety and performance. • Double-check all connections and gaskets to ensure a leak-free, efficient flue system.

The Elbow 45° - Ø 100 is made from high-grade 316L stainless steel, ensuring durability and resistance to corrosion.

This elbow is perfect for a wide range of applications including boilers, ovens, ventilation systems, and as a chimney shaft liner.

Yes, the Elbow 45° - Ø 100 is CE marked, conforming to the EN 1856-1 standard.

The SWPro system uses a push-fit jointing system secured with a locking band. For P1 and H1 installations, jointing gaskets must be fitted at every joint.

Make sure to maintain a distance of 50mm from the flue to any combustible materials such as wood or plasterboard, and always follow the installation guidelines.

The available sizes for the Elbow 45° range from Ø 80 to Ø 400, complying with different EN 1856-1 designations.

Yes, the Elbow 45° - Ø 100 can be used in both positive and negative pressure applications, making it highly versatile.

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