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Screw-FIX Joiner - Ø 175 (25-175-J)
National Flues proudly presents the Screw-FIX Joiner - Ø 175, a top-quality accessory engineered for secure joining of MI-FLEX multi-fuel flexible flue liners. Ideal for systems using solid fuels, wood with less than 20% moisture, smokeless coal, oil, and gas appliances, this joiner offers a robust, high-temperature solution that meets rigorous safety standards. Enhance your chimney’s performance with this essential chimney connector, joiner, and flue system accessory, ensuring a safe and efficient operation.
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In Stock
£45.99
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Made from premium 316L stainless steel for durability
Withstands temperatures up to 600°C (T600 rating)
Complies with CE, HETAS and Building Regulations Document J
Designed for MI-FLEX multi-fuel flue liners ensuring a secure join
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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).
“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.
The Screw-FIX Joiner - Ø 175 is a premium accessory designed specifically for use with MI-FLEX 316 and 904 flexible flue liners. This joiner is essential when connecting two sections of multi-fuel liner and ensures a robust and secure flue system. Ideal for solid fuel, wood with <20% moisture, smokeless coal, gas, and oil appliances, it can withstand temperatures up to 600°C. It is compliant with Building Regulations Document J, meaning it must be fully enclosed within a masonry chimney. Regular maintenance and sweeping by competent professionals are recommended to keep your system in peak condition.
SKU: 25-175-J
Technical Specifications
SKU
25-175-J
Diameter
175 mm
Material
316L Stainless Steel
Temperature Rating
Up to 600°C
Compliance
CE / HETAS, Building Regulations Document J
Compatible Systems
MI-FLEX multi-fuel liners
Suitable Fuels
Solid fuel, Wood (<20% moisture), Smokeless coal, Oil, Gas Appliances
Finish
Natural Stainless Steel
• The Screw-FIX Joiner must be installed within a masonry chimney to comply with Building Regulations Document J.
• Ensure that all flue liner components are correctly aligned and properly secured prior to installation.
• A professional chimney sweep or installer is recommended to ensure safe and efficient setup, minimising risks associated with incorrect fitting.
• Regular maintenance including annual or bi-annual sweeping is essential. Avoid using chemical cleaners or abrasive tools to preserve the integrity of the stainless steel finish.
• Note: This joiner is not suitable for gas liners and must not be installed in non-masonry enclosures such as timber or plasterboard.
No, the Screw-FIX Joiner is not intended for use with gas liners. It is designed specifically for multi-fuel liners.
This joiner is suitable for solid fuels, wood with less than 20% moisture, smokeless coal, gas, and oil appliances.
The joiner can withstand temperatures up to 600°C (T600 designation).
For solid fuel appliances, it is recommended to sweep the chimney at least twice a year: once at the end of the heating season and again before the start of the next season.
No, the joiner must be installed within a masonry chimney as per Building Regulations Document J. Timber or plasterboard enclosures are not acceptable.
Yes, ensure that the chimney system allows easy provision for sweeping and maintenance. Avoid using chemical cleaners or mild steel tools on stainless steel chimneys.
While it's possible to install the joiner yourself, having it installed by a competent professional ensures compliance with regulations and optimal performance.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Wednesday, April 30th.
If you need faster stove or fireplace delivery please give us a call.
We can often 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. Mi-Flex offers a lifetime guarantee.
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.
The Screw-FIX Joiner - Ø 175 is an essential component in creating a secure and efficient flue system. Manufactured from premium 316L stainless steel, this accessory is designed specifically for use with MI-FLEX multi-fuel flue liners, making it an integral part of your chimney installation. Whether you are upgrading an existing system or constructing a new one, understanding the key benefits and proper installation methods of the Screw-FIX Joiner is vital to ensure safety, compliance, and performance.
Why Choose the Screw-FIX Joiner - Ø 175?
When it comes to building a reliable and long-lasting flue system, quality components are a must. The Screw-FIX Joiner - Ø 175 stands out because of its robust construction and excellent performance under high temperatures, with a rating of up to 600°C. This joiner not only meets but exceeds industry standards, being fully compliant with CE and HETAS as well as Building Regulations Document J. Its precise design ensures a secure and tight connection between sections of your flue liner, thereby reducing the risk of leaks and improving overall system efficiency.
Key Benefits
• Durability: The use of high-grade 316L stainless steel guarantees that this joiner will withstand the rigours of frequent temperature fluctuations and environmental exposure. This results in a long service life and reliable performance over time.
• Safety and Compliance: Adherence to regulatory standards such as CE, HETAS, and Building Regulations Document J provides assurance that your installation meets all necessary legal and safety requirements. This is particularly important for homeowners and professionals who demand the highest level of safety.
• Ease of Use: Designed for MI-FLEX multi-fuel systems, the joiner offers a straightforward and secure attachment method. This minimizes installation time and reduces the potential for installation errors, making it suitable even for those with limited technical expertise.
• High Temperature Tolerance: With a temperature resistance of up to 600°C, this joiner is capable of handling the high heat generated by various fuels including solid fuel, wood with low moisture content, smokeless coal, oil, and gas appliances. This high tolerance level ensures that the joiner functions effectively under demanding conditions.
Installation & Maintenance
Proper installation of the Screw-FIX Joiner - Ø 175 is crucial. It is intended for use exclusively within masonry chimneys. Non-masonry enclosures, such as those with timber or plasterboard, do not provide the structural support needed for safe operation. Installation should ideally be carried out by a competent professional who is familiar with both the product and relevant safety standards. During installation, ensure that all sections of the flue liner are correctly aligned and that the joiner is firmly secured.
Regular maintenance is just as important as proper installation. To maintain optimal performance, periodic chimney sweeping by a professional is recommended. This not only helps in sustaining peak efficiency but also prevents potential blockages and build-up that could compromise the safety of your flue system. It is important to avoid the use of chemical cleaners or abrasive tools when cleaning, as these can damage the stainless steel surface of the joiner.
Q: Can I install the joiner myself?
A: While the design of the Screw-FIX Joiner simplifies the installation process, it is recommended that installation be carried out by a knowledgeable professional. This ensures that the product is fitted correctly and adheres to all safety regulations.
Q: Is this joiner suitable for gas liners?
A: No, the Screw-FIX Joiner - Ø 175 is not intended for use with gas liners. It is specifically engineered for multi-fuel systems, so using it with gas-only systems may lead to safety or performance issues.
Q: What types of fuels can be used with this joiner?
A: This joiner is designed to work with a range of fuels including solid fuel, wood (with less than 20% moisture), smokeless coal, oil, and gas appliances – making it a versatile option for many types of installations.
Objection: Some users may be concerned about the compatibility of this joiner with other system components. However, its design is tailored to integrate seamlessly with MI-FLEX systems, ensuring a perfect match with utmost safety and reliability.
Optional Accessories for a Complete Setup
While the Screw-FIX Joiner - Ø 175 is a critical component in your flue system, consider exploring our range of optional accessories designed to complement and enhance the performance of your chimney installation. Accessories such as additional joiners, flue outlet terminals, and maintenance tools are available to create a fully integrated system that offers both aesthetic appeal and functional superiority.
Taking the time to review and invest in these optional accessories can significantly enhance the overall performance and longevity of your flue system. They provide extra security and support, ensuring that every component works harmoniously, leading to a safer and more efficient chimney setup.
Conclusion
The Screw-FIX Joiner - Ø 175 by National Flues provides an unbeatable blend of durability, performance, and safety. Its high-quality construction, combined with regulatory compliance and ease of installation, makes it the ideal choice for a wide range of flue systems. Whether you are installing a new system or upgrading an existing one, this joiner offers the reliability and technological excellence needed to ensure the long-term integrity of your chimney setup.
By choosing this product, you are investing in quality and peace of mind, knowing that your flue system is supported by components that meet the most stringent industry standards. Optional accessories are available to further customize your installation, providing a comprehensive solution that keeps your system running at peak efficiency.
For those looking to achieve the ultimate in performance and safety, every detail matters – right down to the joiner that holds your system together. With the Screw-FIX Joiner - Ø 175, you are guaranteed a secure, compliant, and high-performing connection that stands up to the demands of modern chimney systems.
Buy now or call 01670 206 999.
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