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Long Tail Increasing MI-FLEX Adaptor - Ø 125-Ø 150

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Our 0.6mm 316 stainless steel Long Tail Increasing MI-FLEX Adaptor is expertly crafted to connect a rigid single wall flue system to MI-FLEX, accommodating an increase of 25mm from the single wall to the flexible flue liner. This ensures a dependable and securely enclosed installation within a masonry chimney.

£38.99 incl VAT

  •   Description  
  •   Product Details  

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
  • Item: Long Tail Increasing MI-FLEX Adaptor - u00d8 125-u00d8 150
  • Designation:: BSEN 1856-2 T600 N1 W V2 L50012 G
  • System:: MI-FLEX Accessories MF20
  • Material:: 316L
  • Colour Finish:: Natural / Stainless Steel
  • Fuels:: Wood, Oil, Gas, Smokeless coal
  • Approvals:: HETAS / CE

What is it for?

This adaptor is used for connecting a rigid single wall flue system to MI-FLEX flexible flue liners, ensuring a secure and stable transition within a masonry chimney.

Brand Summary

National Flues is a premier supplier of fireplaces and flues across the UK. Known for competitive pricing and reliable delivery, they cater to both retail and trade customers with an extensive range of high-quality products and exceptional service.

National Flues Verdict

The Long Tail Increasing MI-FLEX Adaptor Ø 125-Ø 150 is an outstanding choice for ensuring a seamless connection between your rigid single wall flue system and MI-FLEX liners. At National Flues, we pride ourselves on offering reliable delivery nationwide and competitive pricing. Trusted by both retail and trade customers.

Our Rating
9.7/10

FAQs

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.