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MI-FLEX Adaptor 1mm - Ø 125 (20-125-MAE1)
National Flues proudly presents the MI-FLEX Adaptor 1mm - Ø 125, a quintessential component for transforming traditional rigid flue systems into modern MI-FLEX flexible flue liners. This essential adaptor, crafted in durable 316L stainless steel, is the ideal solution for those seeking reliability, safety, and performance in high-temperature applications. The MI-FLEX Adaptor is recognised as a leading choice in the UK for connecting single-wall flue systems with confidence, delivering a robust and efficient transition while maintaining compliance with stringent building regulations.
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£39.99
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At a Glance
Premium 316L stainless steel construction | T600 temperature rating for high-heat applications | Compliant with Building Regulations Document J | Secure gas-tight seal when used with approved sealants | Suitable for wood, oil, gas, and smokeless coal 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 MI-FLEX Adaptor 1mm - Ø125 is a vital component in chimney installations, specifically designed to transition from a single-wall flue system to a MI-FLEX 316 or 904 flexible flue liner. Compliant with Building Regulations Document J, this adaptor ensures your flue liner is securely enclosed within a masonry chimney, capable of withstanding temperatures up to 600°C (T600 designation). Ideal for use with wood (less than 20% moisture), smokeless coal, gas, and oil appliances, this adaptor forms a gas-tight seal when installed with fire cement, ceramic rope, or high-temperature sealant.
• Ensure the adaptor is installed within a masonry enclosure as per Building Regulations Document J. • Use high-temperature sealants such as fire cement, ceramic rope, or appropriate tape to secure a gas-tight seal. • Always confirm that the flue liner and adaptor diameters match accurately. • Follow manufacturer guidelines for proper clearance and positioning. • Keep the installation area clear of combustible materials and maintain annual or bi-annual chimney sweeps.
The main purpose is to connect a rigid single-wall flue system to a MI-FLEX flexible flue liner, ensuring a secure and compliant installation.
Yes, it is suitable for wood with less than 20% moisture, smokeless coal, gas, and oil appliances.
The adaptor can withstand temperatures up to 600°C (T600 designation).
You should use fire cement, ceramic rope, tape, or high-temperature sealant to make a gas-tight seal.
No, per Building Regulations Document J, it must be enclosed inside a masonry chimney.
Chimneys should be swept at least once a year, preferably twice if they serve solid fuel appliances—once at the end of the heating season and once before the new season.
No, chemical cleaners or mild steel tools should not be used. Always use appropriate stainless steel cleaning tools.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Tuesday, May 20th. 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.
Comprehensive Buyers Guide for the MI-FLEX Adaptor 1mm - Ø 125
When it comes to ensuring a safe and efficient chimney installation, choosing the right components is of paramount importance. The MI-FLEX Adaptor 1mm - Ø 125 is engineered specifically to address the challenges of connecting rigid single-wall flue systems to modern flexible flue liners, such as the MI-FLEX family. In this guide, we aim to clarify all the essential details, benefits, and considerations that will empower you to make an informed decision.
Understanding the Product
The MI-FLEX Adaptor 1mm - Ø 125 is manufactured using high-grade 316L stainless steel. This premium material not only offers enhanced durability but also ensures that the adaptor can withstand severe operating temperatures up to 600°C (T600 designation). Its construction provides reliability, making it ideal for a myriad of heating systems including wood-burning appliances (with less than 20% moisture), as well as oil, gas, and smokeless coal furnaces.
Key Features and Benefits
Durability and Performance:
- 316L Stainless Steel: Guarantees longevity and resistance to corrosion, even under extreme conditions.
- High Temperature Tolerance: The adaptor is rated to perform in temperatures up to 600°C, ensuring safety during high-heat operations.
Regulatory Compliance:
- Building Regulations Document J: The product meets rigorous safety standards, providing peace of mind that your installation will be both legal and safe.
Versatility:
- Fuel Compatibility: Whether you are utilising wood, oil, gas, or smokeless coal, this adaptor handles various applications without compromise.
Ease of Installation:
- Secured Sealing: Achieve a gas-tight connection effortlessly by using fire cement, ceramic rope, or other high-temperature sealants.
Installation Guidelines and Considerations
The proper installation of your MI-FLEX Adaptor is critical for ensuring optimal performance and longevity of your flue system. Here are some important steps and cautions to consider:
Pre-Installation Checks:
- Verify that the adaptor's dimensions align with your flue liner specifications.
- Ensure all necessary tools and sealants, such as fire cement or ceramic rope, are handy.
Installation Process:
- Fit the adaptor securely into the opening of the masonry chimney, ensuring it is fully enclosed as required.
- Follow the manufacturer’s instructions meticulously to establish a robust gas-tight seal.
- Avoid using any chemical cleaners or inappropriate tools that might damage the stainless steel finish.
Maintenance Advice:
- Regularly inspect the adaptor and associated installation components for any signs of wear or damage.
- Schedule annual or bi-annual chimney sweeps, especially for systems running on solid fuels, to maintain optimal airflow and performance.
Addressing Common Concerns
Is this adaptor suitable for all types of fuels?
Absolutely. The MI-FLEX Adaptor is versatile enough to work efficiently with wood (with appropriate moisture levels), as well as oil, gas, and smokeless coal appliances.
What steps are involved in the installation?
The installation process is straightforward if you adhere to the provided guidelines and ensure that all materials (such as fire cement and ceramic rope) are of high quality. Always double-check that the adaptor is correctly matched with the flue liner’s diameter to maintain safety and performance.
Are there any maintenance requirements?
Maintenance is minimal but essential. Regular inspections, along with proper cleaning using stainless steel-approved tools, will prolong the life and effectiveness of the adaptor. Staying vigilant with maintenance helps reduce the risk of blockages or performance issues.
How does the adaptor enhance system safety?
By forming a secure, gas-tight seal within a masonry enclosure, the adaptor not only complies with regulatory requirements but also significantly improves the overall safety and efficiency of the flue system. This secure connection is vital in preventing leaks and ensuring that the system operates within the safe temperature range.
Complementary Accessories
While the MI-FLEX Adaptor 1mm - Ø 125 is an excellent standalone solution, consider exploring additional accessories to further optimise your chimney system. Accessories such as high-temperature sealants, ceramic ropes, and compatible flue liners can enhance installation quality and ensure long-term reliability. These accessories are readily available through trusted UK suppliers and complement the high standards set by National Flues.
Why Choose National Flues?
At National Flues, quality is at the heart of everything we do. Our products, including the MI-FLEX Adaptor 1mm - Ø 125, are designed to meet the highest standards of safety and efficiency. With a focus on both retail and trade customers, we ensure prompt delivery, exceptional customer support, and adherence to industry regulations. With our extensive range of accessories and expert installation advice, we provide a comprehensive solution tailored to your chimney installation needs.
As you weigh your options, keep in mind that a secure and compliant chimney system is crucial for both safety and performance. Investing in top-quality components like the MI-FLEX Adaptor will not only ensure a robust installation but also minimise the risk of future issues. Our customer testimonials and industry expertise reinforce the reliability of our products, making them the preferred choice for professionals and DIY enthusiasts alike.
Final Thoughts
In conclusion, the MI-FLEX Adaptor 1mm - Ø 125 is a fundamental component that seamlessly bridges the gap between traditional rigid flue systems and modern flexible flue liners. Its robust construction, impressive temperature rating, and compliance with Building Regulations make it an invaluable investment for anyone looking to upgrade their chimney installation. Furthermore, when paired with the right accessories, it can truly transform your flue system into a safe, efficient, and durable setup.
For those seeking a comprehensive, high-quality solution, the MI-FLEX Adaptor represents the ideal blend of form, function, and reliability. Don't leave your chimney installation to chance—invest in quality, invest in safety. Buy now or call 01670 206 999.
Experience the proven reliability of the MI-FLEX Adaptor 1mm - Ø 125 and upgrade your flue system today.
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