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Long Tail Increasing MI-FLEX Adaptor - Ø 125-Ø 150 (20-125-MRLT)
National Flues presents the Long Tail Increasing MI-FLEX Adaptor (Ø 125-Ø 150), a premium solution crafted in 0.6mm 316 stainless steel for a secure and efficient transition between rigid single wall flue systems and MI-FLEX liners. Perfect for wood, oil, gas, and smokeless coal applications, this adaptor meets Building Regulations Document J, ensuring both safety and lasting performance. Enhance your flue system with our high-quality chimne accessory, designed to deliver reliability and superior results.
In Stock
£50.99
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Robust 0.6mm 316 Stainless Steel Construction Seamless connection from rigid single wall flue to MI-FLEX liners 25mm increase ensures a secure, gas-tight seal Complies fully with Building Regulations Document J Suitable for multiple fuels including wood, oil, gas and smokeless coal
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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.
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 Long Tail Increasing MI-FLEX Adaptor Ø 125-Ø 150 is meticulously designed to serve as a transitional joint, effortlessly connecting a rigid single wall flue system to MI-FLEX. With a robust construction of 0.6mm thick 316 stainless steel, this adaptor increases by 25mm from the single wall to the flexible flue liner. Ideal for use with MI-FLEX 316 and 904 flexible flue liners, it ensures a secure and stable connection for appliances operating at temperatures up to 600°C (T600 designation).
Perfect for wood with moisture below 20%, smokeless coal, gas, and oil, this adaptor complies with the Building Regulations Document J which mandates that flexible flue liners be entirely enclosed within a masonry chimney. To guarantee optimal performance and safety, ensure that the bottom fixings are secured with fire cement, ceramic rope, or high-temperature sealant, creating a gas-tight seal. Regular maintenance and sweeping, especially for solid fuel applications, are essential to preserve the integrity and functionality of your chimney system.
SKU: 20-125-MRLT
Technical Specifications
Product ID
529
SKU
20-125-MRLT
Material
316 Stainless Steel
Thickness
0.6mm
Operating Temperature
Up to 600u00b0C (T600)
Size
u00d8 125 u2013 u00d8 150
System
MI-FLEX Accessories MF20
Fuels
Wood (moisture <20%), Oil, Gas, Smokeless Coal
Approvals
HETAS / CE
Finish
Natural / Stainless Steel
When installing the Long Tail Increasing MI-FLEX Adaptor, first ensure that the flue system and MI-FLEX liner are clean and free from obstructions. Secure the adaptor using appropriate bottom fixings such as fire cement, ceramic rope, or high-temperature sealant to achieve a gas-tight seal. The adaptor is designed for use within a masonry chimney, so it is important to follow Building Regulations Document J. Always double-check that the installation is compliant with local building codes. Regular maintenance, including sweeping and inspections, is recommended—especially for systems used with solid fuels—to ensure the longevity and efficiency of your chimney system. Avoid using chemical cleaners or abrasive tools on the stainless steel to preserve its finish.
The Long Tail Increasing MI-FLEX Adaptor is made from 0.6mm thick 316 stainless steel, ensuring durability and resistance to high temperatures.
Yes, the adaptor is suitable for wood (with moisture content below 20%), smokeless coal, gas, and oil.
Absolutely. It complies with Building Regulations Document J, which requires flexible flue liners to be enclosed within a masonry chimney.
You can secure the adaptor using fire cement, ceramic rope, or high-temperature sealant for a perfect gas-tight seal.
The adaptor is designed to handle temperatures up to 600°C (T600 designation).
Chimneys should be swept at least once a year, ideally twice for solid fuel appliances, at the end and start of the heating season, to ensure the system is free from blockages and deposits.
No, it is not recommended to use chemical cleaners or mild steel tools for cleaning stainless steel chimneys. Always use appropriate methods as specified by HETAS.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Monday, May 19th. Delivery times of products not in our warehouses depend on product availability and shipping. If you need a definitive delivery time give us a call.
If you need faster stove or fireplace delivery please also 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. 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.
Read our review in our Long Tail Increasing MI-FLEX Adaptor - Ø 125-Ø 150 buyers guide
When it comes to ensuring the safe and efficient operation of your chimney system, choosing the right adaptor is paramount. The Long Tail Increasing MI-FLEX Adaptor offers a robust solution for connecting a rigid single wall flue system to MI-FLEX liners. In this guide, we provide a detailed overview of the product, its features, benefits, installation process, and maintenance requirements to help you make an informed decision.
Product Overview
The Long Tail Increasing MI-FLEX Adaptor is expertly engineered from 0.6mm thick 316 stainless steel. This construction guarantees excellent durability and resistance to high temperatures, making it suitable for use in systems operating up to 600°C. The product is designed to accommodate a 25mm increase in diameter, ensuring a secure, gas-tight cable that bridges the gap between rigid single wall flues and MI-FLEX liners. This adaptability makes it a perfect fit for a variety of appliances, including those running on wood (with moisture content below 20%), oil, gas, and smokeless coal.
Key Features and Their Benefits
- Premium Material: The use of 316 stainless steel not only provides structural integrity but also ensures longevity even under extreme heating conditions. This means less frequent replacements and more consistent performance over time.
- Seamless Connection: The adaptor's design allows for a flawless transition between different flue systems, minimising the risk of gas leaks and ensuring a stable, durable connection.
- Regulatory Compliance: Adhering strictly to Building Regulations Document J, this product offers reassurance by meeting stringent safety standards, which is imperative for modern chimney systems.
- Versatility: Compatible with MI-FLEX 316 and 904 flexible liners, the adaptor serves a diverse range of fuel types, making it a valuable addition to both residential and commercial installations.
Installation Guidelines
Installing the adaptor is straightforward, but attention to detail is essential. Before beginning the installation, ensure that your flue and liner are thoroughly cleaned and inspected for any obstructions. The adaptor must be securely fixed with recommended materials such as fire cement, ceramic rope, or a high-temperature sealant to form a gas-tight seal. This step is crucial for safety, as it ensures that the transition between flue sections is both secure and efficient. Additionally, always verify compliance with local building regulations, particularly Building Regulations Document J, to avoid any issues during inspections.
Maintenance and Safety Considerations
Routine maintenance is key to the longevity and optimal performance of your chimney system. For appliances using solid fuel, a bi-annual sweep is advised to eliminate creosote build-up and any potential blockages. Avoid the use of chemical cleaners or abrasive tools on the stainless steel components as they can damage the finish and compromise the structural integrity of the adaptor. Consistent checks and proper cleaning routines will help to maintain the efficiency of the system and ensure a continued safe operation.
Addressing Common Concerns
Installation Complexity: For many users, the primary concern is the ease of installation. The design of the adaptor is such that it facilitates a quick and secure installation process. Detailed instructions and guidelines ensure that even those with moderate DIY skills can complete the installation without difficulty. However, always consider consulting with a professional installer if you have any uncertainties.
Compliance and Safety Standards: Safety is paramount, and some users might be concerned about meeting regulatory standards. Rest assured, the Long Tail Increasing MI-FLEX Adaptor adheres closely to Building Regulations Document J and is approved for use with HETAS and CE standards. This compliance means it not only meets but exceeds essential safety requirements.
Versatility for Different Fuels: Another common question relates to fuel compatibility. This adaptor is versatile enough to be used with various fuel types, including wood (with less than 20% moisture), oil, gas, and smokeless coal, ensuring flexibility regardless of your heating source.
Why Choose This Adaptor?
Choosing the right adaptor is more than just a purchase—it is an investment in the longevity and safety of your chimney system. The Long Tail Increasing MI-FLEX Adaptor offers peace of mind with its proven durability, ease of installation, and compliance with stringent regulatory standards. Whether you are a homeowner looking for a reliable solution or a professional installer seeking a dependable product, this adaptor stands out as a top choice in chimney accessories.
Its natural stainless steel finish not only looks modern but also reduces the need for frequent maintenance, ensuring that your chimney setup remains both safe and aesthetically pleasing over time. By opting for this premium adaptor, you are ensuring that your installation is executed to the highest standards, with a secure and effective transition between systems that minimises the risk of operational failures.
Final Thoughts
In conclusion, the Long Tail Increasing MI-FLEX Adaptor (Ø 125-Ø 150) is a high-quality solution that excels in durability, safety, and ease of use. It is meticulously designed to handle high temperatures, provide a secure connection, and comply with essential safety regulations. Whether you are upgrading an existing system or installing a new one, this adaptor provides exceptional value. Its flexibility in use and long-term reliability make it an indispensable accessory for ensuring the efficient operation of your chimney system.
Make an informed decision by investing in a product that prioritises both safety and quality. With all these benefits and a straightforward installation process, you are well-equipped to achieve a secure and compliant chimney setup. Buy now or call 01670 206 999.
Upgrade your chimney system now with the Long Tail Increasing MI-FLEX Adaptor – add to cart or call us on 01670 206 999.
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