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MI-FLEX Adaptor - Ø 125 (20-125-MAE)

National Flues proudly offers the MI-FLEX Adaptor - Ø 125, a premium stainless steel flue adapter expertly designed for secure and compliant connections between single wall systems and MI-FLEX flexible liners. Read more...
MI-FLEX Adaptor - Ø 125
IN STOCK
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Now only £19.99
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At a Glance

  • Secure transitional connection
  • Crafted from high-quality 316L stainless steel
  • 6mm robust construction
  • Compliant with Building Regulations Document J
  • Suitable for wood (<20% moisture), smokeless coal, oil, and gas appliances
  • Withstands temperatures up to 600°C

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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:

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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.

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Have Questions?
Phone: 01670 206999
Email: sales@nationalflues.com

The MI-FLEX Adaptor - Ø 125, crafted from 0.6mm 316 stainless steel, serves as a vital transitional component for connecting rigid single wall connecting flue systems to MI-FLEX flexible flue liners. This high-quality adaptor is ideally designed for use with MI-FLEX 316 and 904 flexible flue liners, ensuring robust connections that comply with Building Regulations Document J. These regulations mandate that flexible flue liners be fully enclosed within a masonry chimney, ruling out non-masonry enclosures such as timber or plasterboard.

Hardy enough to withstand temperatures up to 600°C, this adaptor is versatile for wood (<20% moisture), smokeless coal, gas, and oil appliances.

SKU: 20-125-MAE

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

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Technical Specifications
ModelMI-FLEX Adaptor - Ø 125
Material316L Stainless Steel
Thickness0.6mm
Temperature ResistanceUp to 600°C
ComplianceBuilding Regulations Document J, HETAS / CE
Compatible SystemsMI-FLEX 316 and 904 Flexible Flue Liners
Fuel TypesWood (<20% moisture), Oil, Gas, Smokeless Coal
Installation of the MI-FLEX Adaptor - Ø 125 should be carried out by a competent installer. Ensure that all connections between the rigid single wall system and the MI-FLEX flexible liner are securely fastened and fully enclosed within a masonry chimney, as mandated by Building Regulations. Do not attempt installation in non-masonry settings such as timber or plasterboard enclosures. Follow the manufacturer’s guidelines meticulously and inspect the complete flue system annually. If any adjustments are needed or if there is any doubt, consult a HETAS registered professional. Always ensure that the appropriate sealing and support accessories are used to promote maximum performance and safety.

The MI-FLEX Adaptor is crafted from 0.6mm thick 316 stainless steel, ensuring durability and high-temperature resistance.

Yes, this adaptor is suitable for use with wood (<20% moisture), smokeless coal, gas, and oil appliances.

Absolutely. The MI-FLEX Adaptor complies with Building Regulations Document J, which requires that flexible flue liners be fully enclosed within a masonry chimney.

The system should be inspected and maintained yearly, but chimneys serving solid fuel appliances should be swept at least twice a year – at the end of the heating season and before the new one begins.

No, chemical cleaners and mild steel tools should not be used on stainless steel chimneys. It’s best to use appropriate sweeping tools.

No, Building Regulations require that flexible flue liners only be installed fully enclosed in a masonry chimney.

Maintenance should be carried out by a competent person. For solid fuel appliances, it’s recommended to use a HETAS registered sweep.

 

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