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Screw-FIX Joiner - Ø 125 (25-125-J)
Discover the National Flues Screw-FIX Joiner - Ø 125, a critical accessory designed for MI-FLEX multi-fuel flue liners. This premium joiner, crafted from 316L stainless steel, ensures a robust and secure flue system, making it an indispensable component for chimney installations that require durability and precision. Perfect for professionals and homeowners alike, our joiner offers a smart solution for joining longer sections of flexible liner while maintaining compliance with contemporary safety standards.
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£40.49
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At a Glance
Compatible with MI-FLEX 316 and 904 multi-fuel liners
Engineered for temperatures up to 600°C (T600 designation)
Constructed from durable 316L stainless steel for longevity
Meets Building Regulations Document J for safe chimney installations
Designed for wood, smokeless coal, gas, and oil appliances
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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.
The Screw-FIX Joiner - Ø 125 is a critical accessory meticulously engineered for use with MI-FLEX 316 and 904 flexible flue liners. Designed to create a complete chimney system, this tool ensures seamless joining of two lengths of multi-fuel liner, making it an excellent choice for installations where the liner length exceeds the standard flex available. Ideally suited for use on solid fuel appliances burning wood (with less than 20% moisture), smokeless coal, gas, and oil, this joiner can withstand temperatures up to 600°C (T600 designation).
It adheres to Building Regulations Document J, which mandates that flexible flue liners be entirely enclosed within a masonry chimney. Note: The joiner is specifically for multi-fuel liners and is not suitable for gas liners.
SKU: 25-125-J
Technical Specifications
SKU
25-125-J
Dimensions
u00d8 125mm
Material
316L Stainless Steel
Temperature Rating
Up to 600u00b0C
Fuel Compatibility
Wood, Smokeless Coal, Gas, Oil
Standards
CE, HETAS, BSEN 1856-2 T600
System
MI-FLEX Accessories MF20
- Must be installed by a qualified professional
- Ensure the liner is completely enclosed within a masonry flue as per Building Regulations Document J
- Not suitable for gas liner applications
- Follow all manufacturer guidelines and safety regulations during installation
- Check compatibility with any additional accessories before use
No, the Screw-FIX Joiner is specifically designed for multi-fuel liners and should not be used with gas liners.
The joiner is suitable for use with wood (with less than 20% moisture), smokeless coal, gas, and oil appliances.
The joiner can withstand temperatures up to 600°C (T600 designation).
Yes, according to Building Regulations Document J, a flexible flue liner must be completely enclosed within a masonry chimney.
The chimney system should be swept and inspected at least once a year, though twice a year is recommended for solid fuel appliances.
Avoid using chemical cleaners or mild steel tools to sweep stainless steel chimneys.
A list of HETAS registered sweeps can be found at www.hetas.co.uk.
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.
Welcome to our detailed buyer’s guide for the Screw-FIX Joiner - Ø 125, an essential component designed for the seamless joining of multi-fuel flue liners. In this guide, we will walk you through everything you need to know about this indispensable accessory, including its features, benefits, installation advice, and the optional accessories that can enhance your complete chimney system.
Introduction
The Screw-FIX Joiner - Ø 125 is engineered to provide a secure and reliable connection between lengths of MI-FLEX flexible flue liners. Whether you are installing a new chimney system or upgrading an existing one, this joiner is designed to meet the demands of modern heating appliances. Constructed from high-grade 316L stainless steel, it is crafted to withstand extreme temperatures of up to 600°C, ensuring durability and performance even in the most challenging conditions. As a product that complies with Building Regulations Document J, it guarantees that your flue installation is safe and meets all statutory requirements.
Key Features and Their Benefits
1. Superior Durability:
- The Screw-FIX Joiner is made from premium 316L stainless steel, ensuring excellent corrosion resistance and long-lasting performance. This means less frequent replacements and a more reliable performance over time.
2. High Temperature Resistance:
- With a temperature rating of up to 600°C, this joiner performs flawlessly under high heat conditions. This reliability is critical for installations involving solid fuel, where high operational temperatures are common.
3. Universal Compatibility:
- Designed to work with both MI-FLEX 316 and 904 liners, the joiner is versatile in its application. This versatility allows you to use it across a variety of fuel types, including wood, smokeless coal, gas, and oil appliances.
4. Compliance and Safety:
- By adhering to Building Regulations Document J, you can rest assured that you are installing a product that meets strict safety guidelines. This compliance is not only essential for legal installations but also for the safety of all users.
Installation Advice
When installing the Screw-FIX Joiner, it is imperative to adhere to the following guidelines:
- Professional Installation: It is recommended that this product is installed by a qualified professional. This ensures that the flue system is assembled correctly, minimising any risks associated with improper installation.
- Masonry Enclosure: Ensure that the complete liner, including the joiner, is fully enclosed within a masonry flue. This is a requirement under Building Regulations Document J and is essential for optimal performance.
- Product Compatibility: Although compatible with multi-fuel liners, note that the joiner is not suitable for gas-specific liners. Always verify that you are using the correct accessories for your specific flue system requirements.
Exploring Optional Accessories
Beyond the Screw-FIX Joiner, a comprehensive chimney system often includes a range of optional accessories. Accessories such as additional support brackets, flange reducers, high-temperature sealants, and liner clamps can further optimise your chimney installation. Adding these components where necessary can enhance the performance and longevity of your flue system. When planning your installation, take a moment to review the available accessories to tailor the solution perfectly to your needs.
*If you need guidance on selecting these optional accessories, our expert team is available to assist you in making informed choices that ensure a flawless installation.*
Addressing Common Objections
Concern: Installation Complexity
- Some customers worry that installing a joiner might be too complex. However, when installed by a professional who understands the specific requirements of flue systems, the process is straightforward and safe. We offer comprehensive support and detailed installation instructions to ensure a smooth process.
Concern: Quality and Reliability
- Quality is paramount when it comes to chimney safety. The materials used in the Screw-FIX Joiner have been rigorously tested, and its design is focused on longevity and performance. With the joiner’s high-temperature tolerance and robust construction, you can be confident in a product that will stand the test of time.
Concern: Compatibility with Other Accessories
- Some installers worry that adding optional accessories might complicate the installation. Rest assured, our joiner is designed to integrate seamlessly with a range of supplementary products. We recommend consulting our installation details section or speaking to one of our experts to ensure that all components work together harmoniously.
Why Choose National Flues?
At National Flues, we are committed to providing high-quality, reliable products that adhere to the highest safety standards. Our Screw-FIX Joiner - Ø 125 represents our dedication to innovation and safety. This product is an essential part of any modern chimney system, ensuring that every installation is both safe and efficient. We understand that a well-constructed flue not only optimises performance but also ensures the longevity of your heating systems.
We pride ourselves on offering products that meet both the technical and regulatory demands of the UK market. With our extensive range of flue accessories, you have the flexibility to build a system that is perfectly suited to your requirements. Our team is always on hand to provide expert guidance and support, ensuring that every installation adheres to the latest safety guidelines.
Final Thoughts
Choosing the right joiner is crucial for the overall performance of your chimney system. The Screw-FIX Joiner - Ø 125 is a smart, reliable, and compliant solution for extending the length of your multi-fuel flue liners. Its robust construction, high-temperature endurance, and strict adherence to safety regulations make it an essential component in modern flue installations. Remember to consider complementary accessories to complete your system, ensuring every element works in harmony to deliver optimum performance.
When you invest in National Flues products, you invest in quality, reliability, and peace of mind. We invite you to explore our complete range of optional accessories to further enhance your chimney installation and achieve a bespoke solution that truly fits your needs.
Add confidence to your chimney installation today—buy now or call 01670 206 999.
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