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Boiler adaptor - Ø 250 (3-250-BA-253)

Discover the superior performance of the Boiler Adaptor - Ø 250 by National Flues, a high-quality stainless steel flue component designed for a broad range of appliances including boilers, ovens, and ventilation systems. This durable, CE-marked adaptor meets EN 1856-1 standards, making it an essential component for both high and low-temperature applications. Enhance your installation experience with this reliable, push-fit design and explore optional accessories to further improve functionality.
Now only £58.99
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At a Glance

    Constructed from durable 316L Stainless Steel

    CE marked and compliant with EN 1856-1 standards

    High-pressure sealing gasket (P1/H1) for superior performance

    Push-fit joint system with Locking Band for quick installation

    Versatile for boilers, ovens, ventilation systems, and chimney shaft liners

    Suitable for both high and low-temperature applications

Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, July 7th. This is based on current lead times for this product. 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 on 01670 206 999. 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.

Best 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 Boiler adaptor - Ø 250 is an essential component of the SWPro modular single wall flue system. This high-quality adaptor, constructed from 316 grade stainless steel, is built to withstand both high and low temperatures and is suitable for non-condensing and condensing applications. It is designed with a high-pressure sealing gasket P1/H1, making it ideal for a wide range of setups including boilers, ovens, ventilation systems, and chimney shaft liners.

Each adaptor is CE marked and conforms to the rigorous standards set by EN 1856-1. Installation is a breeze thanks to its push-fit jointing system, secured with a Locking Band. For condensing appliances, ensure the adaptor and appliance outlet are sealed with silicone sealant unless a seal is already incorporated at the outlet.

Remember to maintain a 50mm clearance from any combustible materials.

SKU: 3-250-BA-253

Technical Specifications
Inner Material316L Stainless Steel
Outer MaterialN/A
ComplianceCE marked, EN 1856-1
Fuel CompatibilityGas, Oil
Sealing SystemHigh-pressure gasket P1/H1 with Locking Band
Temperature RangeSuitable for both condensing and non-condensing applications
Minimum Clearance50mm from combustible materials
SystemSWPro modular single wall flue system
Warranty10 Years
The Boiler Adaptor - Ø 250 is designed for straightforward installation. Begin by ensuring that both the adaptor and the appliance outlet (if condensing) are clean and ready for a secure fit. Use silicone sealant to seal these connections where no integrated seal is present. The push-fit jointing system, secured with a Locking Band, makes installation fast and reliable. Always maintain a minimum clearance of 50mm from combustible materials to comply with safety guidelines. For best results, check if your appliance requires additional accessory components such as extra silicone sealant or compatible locking bands, ensuring flawless integration into the SWPro system.

The Boiler Adaptor is made from high-grade 316L Stainless Steel, known for its durability and resistance to corrosion.

Yes, the Boiler Adaptor is suitable for both high and low-temperature applications, providing great versatility.

Yes, the Boiler Adaptor is CE marked and meets the standards outlined in EN 1856-1.

The Boiler Adaptor features a push-fit jointing system secured with a Locking Band. For condensing appliances, seal the adaptor and the appliance outlet with silicone sealant unless a seal is already incorporated.

The adaptor is built to meet high-pressure requirements as indicated by its P1/H1 sealing gasket.

Maintain a minimum clearance of 50mm from any combustible materials, including wood and plasterboard.

The Boiler Adaptor is versatile and suitable for boilers, ovens, ventilation systems, and as a chimney shaft liner.

What our experts say!

"The Boiler Adaptor - Ø 250 from our SWPro range combines quality and functionality at an unbeatable price. With reliable nationwide delivery, it is perfect for both retail and trade customers. We proudly recommend this product for its versatile applications and excellent build quality."

The Boiler Adaptor - Ø 250 is designed to connect the SWPro flue system to various appliances, ensuring a secure and efficient operation in both high and low-temperature settings.

National Flues is a trusted supplier of fireplaces and flues across the UK. Known for competitive pricing and reliable delivery, we cater to both retail and trade customers with a range of high-quality products.

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