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Screw-FIX Long Tail Adaptor - Ø 100 (25-100-MAELT)

National Flues presents the Screw-FIX Long Tail Adaptor Ø 100, a premium stainless steel adaptor engineered for flawless flue system installations. This robust 316L adaptor is an essential component within the MI-FLEX range, designed to deliver a secure and efficient connection between rigid flue systems and flexible liners. Read more...
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At a Glance

  • 6mm thick 316L stainless steel construction
  • Seamless connection between rigid single-wall flue systems and MI-FLEX flexible liners
  • High temperature rating up to 600°C (T600 designation)
  • Ensures gas-tight seal with fire cement, ceramic rope, or high-temperature sealant
  • Fully compliant with Building Regulations Document J for safe installations

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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 Screw-FIX Long Tail Adaptor Ø 100 is a 0.6mm thick, 316 stainless steel fitting that serves as a crucial transitional joint for connecting a rigid single-wall flue system to a MI-FLEX flexible flue liner. This adaptor is part of our MI-FLEX-Screw Fix range, designed to seamlessly integrate with MI-FLEX 316 and 904 flexible flue liners. Compliance with Building Regulations Document J ensures the safe and efficient enclosure of the flue liner within a masonry chimney, making it suitable for various fuel types including wood, smokeless coal, gas, and oil, with a high-temperature rating of up to 600°C (T600 designation).

Our adaptors are engineered to transition smoothly from the connecting flue system to the flexible liner, guaranteeing a gas-tight seal when used with fire cement, ceramic rope, or high-temperature sealant. Regular sweeps and maintenance by a competent person are recommended, and for solid fuel applications, HETAS-registered sweeps provide the best service.

SKU: 25-100-MAELT

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, November 14th. 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.

Technical Specifications
Material316L Stainless Steel
Thickness0.6mm
Temperature Rating600°C (T600 designation)
DimensionsØ 100 mm
System CompatibilityMI-FLEX Accessories MF20
ApprovalsCE / HETAS
Suitable FuelsWood, Oil, Gas, Smokeless Coal
For safe and efficient installation, the Screw-FIX Long Tail Adaptor Ø 100 should be fitted by a competent person following the guidelines set out in Building Regulations Document J. It is essential to ensure that the rigid single-wall flue system and the MI-FLEX flexible liner are securely connected with the adaptor in between. Always use a high-temperature sealant such as fire cement, ceramic rope, or an approved high-temperature sealant to guarantee a gas-tight seal. Avoid using chemical cleaners or mild steel tools on the stainless steel to maintain its finish and performance. Regular maintenance and yearly sweeps, or twice for solid fuel applications, are recommended to ensure your flue system remains in optimal condition.

It's used to connect a rigid single-wall flue system to an MI-FLEX flexible flue liner, ensuring a secure and seamless transition.

Yes, it is suitable for use on appliances up to 600°C (T600 designation).

It is suitable for wood with less than 20% moisture, smokeless coal, gas, and oil.

Yes. Building Regulations Document J requires the flue liner to be fully enclosed within a masonry chimney. Non-masonry enclosures like timber or plasterboard are not acceptable.

The chimney system should be swept at least once a year for appliances, but for solid fuel applications, it's recommended to sweep it twice a year.

Yes, using fire cement, ceramic rope, or high-temperature sealant is advisable to ensure a gas-tight seal.

No, chemical cleaners and mild steel tools should not be used on stainless steel chimneys.

 

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