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Elbow 45° - Ø 800 (3-800-031)

National Flues presents the Elbow 45° - Ø 800, a premium stainless steel flue elbow that stands out in the commercial and residential market. Engineered for efficiency, this product is ideal for chimney, ventilation, and exhaust systems. Its robust construction, CE certification, and compliance with EN 1856-1 make it an indispensable component for modern flue systems. To complete your installation, explore a range of optional accessories including sealing gaskets, locking bands, and support brac Read more...
The price you pay today £831.99
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At a Glance

    Made from high-grade 316L stainless steel
    Complies with EN 1856-1 and CE marked for safety
    Versatile use in boilers, ovens, ventilation systems, and chimney liners
    Secure push-fit jointing system with optional sealing gaskets
    Suitable for both positive and negative pressure systems
    Designed to maintain a safe 50mm clearance from combustibles
    10-year warranty for long-term peace of mind
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, June 9th. 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 Elbow 45° - Ø 800 is an essential component in our SWPro modular single-wall flue system. Crafted from high-grade 316L stainless steel, this elbow fitting is designed to perform efficiently under high-pressure conditions, both positive and negative. Its application versatility spans from boilers and ovens to ventilation systems and chimney shaft liners, making it suitable for a wide range of commercial and residential uses.

With CE marking for quality assurance and compliance with EN 1856-1 standards, this flue elbow guarantees safety and reliability. Installation is straightforward with a secure push-fit jointing system, and joint gaskets ensure optimal sealing in P1 and H1 applications. Ensure a 50mm distance from combustible materials to maintain safety.

SKU: 3-800-031

Technical Specifications
Material316L Stainless Steel
ComplianceCE, EN 1856-1
Pressure RatingSuitable for both positive and negative pressure systems
InstallationPush-fit jointing system with optional sealing gaskets for P1 and H1 applications
Clearance50mm minimum distance from combustible materials
ApplicationsBoilers, ovens, ventilation systems, chimney shaft liners
Diameteru00d8 800
Angle45u00b0
Warranty10 Years
Before installing the Elbow 45° - Ø 800, ensure that all connection surfaces are clean and free of debris. Fit the elbow using the secure push-fit jointing system and make use of the recommended sealing gaskets for P1 and H1 installations. Maintain a safe clearance of 50mm from any combustible materials. Always refer to the provided installation manual and adhere to CE guidelines. Caution: improper installation may compromise the flue system’s integrity and safety.

The Elbow 45° - Ø 800 is made of high-grade 316L stainless steel.

This flue elbow is suitable for both high and low-temperature applications, including boilers, ovens, ventilation systems, and as a chimney shaft liner.

Yes, the Elbow 45° - Ø 800 is CE marked, ensuring it meets all relevant quality and safety standards.

The flue system features a push-fit jointing system secured with a Locking Band. In P1 and H1 installations, ensure that joint gaskets are fitted on every joint.

Yes, you should maintain a distance of 50mm from the outside of the flue to any combustible material like wood or plasterboard.

The elbow complies with EN 1856-1 standards, specifically T200 H1 W Vm L50040 O(50) and T200 H1 W Vm L50050 O(50), depending on the diameter.

Yes, the Elbow 45° - Ø 800 is suitable for use in both positive and negative pressure systems.

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