We use cookies to ensure a smooth, secure, and ever-improving experience on our website. By continuing to browse, you agree to our use of cookies as detailed in our Cookie Policy. Enjoy your visit and let us now if you need any help!
Cookie Preferences
We use different types of cookies for various purposes. Please select which you allow:
Joiner - Ø 150 (20-150-J)
Discover the premium Joiner Ø 150 from National Flues, the ideal connector accessory for your MI-FLEX multi-fuel flexible flue liner system. Designed for robust and compliant installations, this high-quality joiner meets HETAS and CE standards, ensuring your chimney setup is safe, efficient, and built to last. Perfect for multi-fuel applications, it is an indispensable component when your liner exceeds the maximum available flex length.
Hover to Zoom / Click for Gallery
In Stock
£23.49
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Constructed from durable 316L stainless steel for longevity and reliability
Seamless compatibility with MI-FLEX multi-fuel flexible flue liners (316 and 904)
Withstands high temperatures up to 600°C (T600 designation) ensuring robust performance
HETAS and CE approved, meeting stringent safety and compliance standards
Specially engineered for wood (below 20% moisture), smokeless coal, and oil applications (not for gas liners)
Essential for extending your chimney liner when maximum flex length is exceeded
×
Email Product
Enter your email address to send the product details:
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 Joiner Ø 150 is a highly durable and essential accessory designed to join two sections of MI-FLEX multi-fuel flexible flue liners. Perfect for use with MI-FLEX 316 and 904 liners, this joiner ensures a complete and efficient chimney system. Compliant with Building Regulations Document J, this joiner is ideal for use with wood (below 20% moisture), smokeless coal, gas, and oil appliances up to 600°C (T600 designation).
It is crucial that the flexible flue liner is installed entirely within a masonry chimney, as non-masonry enclosures such as timber or plasterboard are not acceptable. Regular maintenance, including annual chimney sweeping by a competent person, ensures longevity and performance. For solid fuel applications, refer to HETAS registered sweepers to maintain your system in top condition.
SKU: 20-150-J
Technical Specifications
SKU
20-150-J
Product Name
Joiner - u00d8 150
Material
316L Stainless Steel
Diameter
150mm
Temperature Rating
Up to 600u00b0C (T600)
Certifications
HETAS / CE
System
MI-FLEX Accessories MF20
Fuels Compatible
Wood (below 20% moisture), Smokeless Coal, Oil (Not for gas liners)
• Installation must be carried out within a masonry chimney environment as non-masonry enclosures like timber or plasterboard are not acceptable.
• Ensure that the entire flexible flue liner is housed within the chimney to comply with Building Regulations Document J.
• The joiner should only be used when the flue liner length exceeds the available maximum flex length, providing a secure connection between liner sections.
• It is imperative to follow manufacturer guidelines and local building codes during installation to maximise the performance and safety of your flue system.
• Regular maintenance, including annual chimney sweeping by a HETAS registered professional, is essential to maintain optimum functionality.
No, the Joiner Ø 150 is not suitable for use with gas liners. It should only be used with multi-fuel liners.
The Joiner Ø 150 is suitable for use with appliances that reach temperatures up to 600°C (T600 designation).
No, Building Regulations require that a flexible flue liner must be installed entirely within a masonry chimney. Non-masonry enclosures like timber or plasterboard are not acceptable.
Regular inspection and maintenance are crucial. For solid fuel applications, the chimney should be swept at least twice a year by a competent person, preferably a HETAS registered sweeper.
The Joiner Ø 150 is suitable for use with wood (below 20% moisture content), smokeless coal, gas, and oil.
You can find a list of HETAS registered sweeps on the HETAS website (www.hetas.co.uk).
A joiner is necessary if your chimney liner length exceeds the maximum available flex length. It ensures a secure connection between two sections of the liner.
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 Joiner Ø 150 is not just another connecting accessory; it is a crucial component designed to enhance the performance and safety of your MI-FLEX multi-fuel flexible flue liner system. In this guide, we explain everything you need to know about this essential joiner, from its construction and compatibility to installation guidelines and maintenance tips.
Product Overview
The Joiner Ø 150 is engineered from 316L stainless steel, ensuring exceptional durability and resistance to the harsh conditions prevalent in chimney systems. Its design caters specifically to situations where the flue liner length exceeds the available maximum flex length, thereby providing a secure and efficient connection between two flue sections.
Key Features and Benefits
- Durability: Made from high-quality 316L stainless steel, the joiner promises long-term reliability and resistivity to corrosion which is essential in chimney systems.
- Heat Resistance: With a temperature rating of up to 600°C (T600 designation), it is built to endure high-heat applications, ensuring that your system remains safe and effective under demanding conditions.
- Compliance and Safety: The joiner is HETAS and CE approved, meeting the necessary compliance standards required for safe installations. This certification assures you that the product adheres to strict industry standards, providing both safety and efficiency.
- Optimisation for Multi-Fuel Use: Although it is suitable for wood, smokeless coal, and oil applications, it is important to note that the joiner is not to be used for gas liners. Its meticulous design is tailored to deliver maximum performance across a variety of fuel sources.
Why Choose the Joiner Ø 150?
Choosing the right joiner is paramount for ensuring the integrity of your chimney system. The Joiner Ø 150 offers a blend of advanced engineering, stringent safety compliance, and exceptional performance. This makes it an ideal choice for both residential and commercial installations. By using this joiner, you not only secure a continuous and leak-free connection but also enhance the overall efficiency of your chimney system.
Installation Guidelines
Installation is Key:
It is essential to remember that the joiner must be installed within a masonry chimney. Non-masonry enclosures like timber or plasterboard are unsuitable and can violate building regulations. Follow these critical steps during installation:
• Always ensure that the flexible flue liner is completely contained within the masonry structure.
• Use appropriate tools and wear safety gear during installation to avoid any potential injury.
• If unsure about any aspect of the installation, consult a professional installer who is experienced with MI-FLEX systems.
Maintenance and Safety
Regular maintenance of your chimney system is critical for both performance and safety. For solid fuel applications, it is advisable to have the chimney swept at least twice a year by a HETAS registered sweeper. This not only prevents build-up and blockages but also extends the lifespan of both the joiner and the overall flue system. Regular inspections can help detect any early signs of wear or damage, ensuring that you take corrective measures promptly.
Addressing Common Concerns
What fuels can I use?
The Joiner Ø 150 is compatible with wood (with moisture content below 20%), smokeless coal, and oil. It effectively caters to multi-fuel applications, although it must not be used with gas liners.
Will it work with my existing MI-FLEX liner?
Yes, the joiner is designed with compatibility in mind. It is specifically created to connect two sections of MI-FLEX multi-fuel flexible flue liners, ensuring a seamless extension of your existing chimney system.
Is installation difficult?
While the joiner is user-friendly, it is essential that installation is carried out within a masonry chimney according to manufacturer guidelines. For those who are not experienced, it is recommended to engage a professional to ensure safety and compliance.
Final Thoughts
Investing in the right joiner is fundamental to the safety, efficiency, and longevity of your chimney system. The Joiner Ø 150 from National Flues stands out due to its superior build quality, high temperature tolerance, and stringent adherence to safety standards. Whether you are upgrading an existing system or installing a new one, this joiner offers reliable performance and peace of mind.
Make sure you factor in all aspects of compatibility, installation requirements, and maintenance protocols when making your decision. A well-installed and maintained flue system not only improves heating efficiency but also significantly reduces potential hazards. With National Flues, you are choosing excellence and reliability across every component of your chimney system.
Enhance your system’s safety and performance by incorporating the Joiner Ø 150. Buy now or call 01670 206 999.
Compatible and other products that may be of interest...
