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Boiler adaptor - Ø 800 (3-800-BA-748)

Discover the Boiler Adaptor - Ø 800 by National Flues, a high-quality flue system component designed to seamlessly connect to boilers, ovens, and ventilation systems. Engineered from premium 316L stainless steel and CE marked for quality, this adaptor is an indispensable accessory for any SWPro flue system installation. Ideal for both condensing and non-condensing applications, it stands as one of the leading choices in the market for secure, efficient, and reliable performance.
The price you pay today £763.99
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At a Glance

    Made from high-grade 316L stainless steel
    CE marked and complies with EN 1856-1 standards
    Compatible with both condensing and non-condensing appliances
    Versatile connection for boilers, ovens, and ventilation systems using the SWPro flue system
    Secure push-fit jointing system with locking band ensuring a reliable fit
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.

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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 800 is a key part of the SWPro modular single wall flue system, expertly crafted from 316 grade stainless steel. Designed for high-pressure scenarios, this adaptor seamlessly connects your SWPro flue to various appliances such as boilers, ovens, and ventilation systems. It's versatile enough to handle both high and low temperature environments, as well as both non-condensing and condensing applications.

With CE marking and compliance with EN 1856-1 designations, you can be assured of its quality and safety. Installation is straightforward with a push-fit jointing system and locking band, ensuring secure connections. In P1 and H1 installations, jointing gaskets are necessary to maintain efficiency and safety.

SKU: 3-800-BA-748

Technical Specifications
Material316L Stainless Steel
ComplianceCE Marked, EN 1856-1: T200 H1 W Vm L50050/O(50)
Dimensionsu00d8 800
Installation SystemPush-fit joint with locking band
Suitable FuelsGas, Oil
Temperature RangeHigh & Low temperature applications
Warranty10 Years
Distance To Combustibles50mm
For a secure installation, use the provided push-fit jointing system and secure the connection with the locking band. When installing in P1 and H1 configurations, ensure that a jointing gasket is fitted on every joint to maintain safety and efficiency. For condensing appliances, if the appliance does not include its own outlet seal, apply a high-quality silicone sealant at the connection point to guarantee a leak-proof fit. Always maintain a minimum distance of 50mm from any combustible materials as specified by your installation guidelines.

The Boiler Adaptor - Ø 800 is made from high-grade 316L stainless steel, ensuring durability and resistance to corrosion.

Yes, the Boiler Adaptor - Ø 800 is suitable for both high and low temperature environments.

Absolutely. The Boiler Adaptor - Ø 800 is designed to handle both positive and negative pressure applications.

The Boiler Adaptor - Ø 800 is CE marked and complies with EN 1856-1: T200 H1 W Vm L50050 O(50) standards.

The adaptor should be installed using the push-fit jointing system with a locking band. For P1 and H1 installations, jointing gaskets must be fitted on every joint.

Ensure a distance of 50mm from the outside of the flue to any combustible material such as wood or plasterboard.

Yes, silicone sealant should be used to seal the adaptor and appliance outlet for condensing appliances, unless the appliance already includes a seal at the outlet.

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