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Screw-FIX Flex Joiner - Ø 200 (25-200-J)

Discover the high quality Screw-FIX Flex Joiner - Ø 200 from National Flues, a leading supplier of top-notch flue systems and accessories. This MI-FLEX accessory is engineered to join multi-fuel flexible flue liners seamlessly, ensuring optimal performance for wood, oil, gas, and smokeless coal applications. Read more...
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At a Glance

  • Secure joining of multi-fuel flexible flue liners
  • Made from premium 316L stainless steel
  • Withstands temperatures up to 600°C
  • Complies with Building Regulations Document J
  • Perfect for MI-FLEX 316 and MI-FLEX 904 systems

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.

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

The Screw-FIX Flex Joiner Ø 200 is a highly practical accessory from the MI-FLEX family, expertly designed to join two pieces of multi-fuel flexible flue liners like MI-FLEX 316 and MI-FLEX 904. This joiner is crucial when the chimney liner length surpasses the maximum available flex length. Perfect for use with applications up to 600°C, including wood (with less than 20% moisture), smokeless coal, gas, and oil, it meets stringent Building Regulations Document J requirements, ensuring it can only be installed enclosed within a masonry chimney.

The system ensures safety and efficiency, providing an excellent solution for a full system chimney. Remember to follow proper maintenance guidelines, which include sweeping by a competent person and avoiding chemical cleaners or mild steel tools for stainless steel chimneys. The flue system should be inspected and cleaned at least once a year, preferably twice for solid fuel appliances to avoid soot build-up and blockages.

SKU: 25-200-J

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.

Technical Specifications
SKU25-200-J
Product NameScrew-FIX Flex Joiner - Ø 200
DesignationBSEN 1856-2 T600 N1 W V2 L50012 G
SystemMI-FLEX Accessories MF20
Material316L Stainless Steel
Colour FinishStainless Steel / NATURAL
FuelsWood (with <20% moisture), Smokeless Coal, Gas, Oil
ApprovalsCE / HETAS
Max Temperature600°C
Installation of the Screw-FIX Flex Joiner must be performed in accordance with manufacturer guidelines and Building Regulations Document J. It is essential that the product is installed within a fully enclosed masonry chimney. Prior to installation, ensure that the flue liners (MI-FLEX 316 or MI-FLEX 904) are correctly aligned and trimmed to size. Pay special attention to the following points: • Only use approved cleaning methods – do not use chemical cleaners or mild steel tools on stainless steel components. • Ensure that connections are secure and free from any deformities which could compromise safety. • All installations should be verified and, if necessary, conducted by a competent person to guarantee proper sweeping and maintenance. • Regular system checks and annual cleanings (or biannual for solid fuel applications) are strongly advised to avoid soot build-up and blockages. • Always refer to the full installation manual for detailed instructions and safety warnings.

No, the Screw-FIX Flex Joiner Ø 200 must not be used with gas liners. It is only suitable for multi-fuel flexible flue liners.

It is designed for use with MI-FLEX 316 and MI-FLEX 904 multi-fuel flexible flue liners.

The joiner can withstand temperatures up to 600°C.

The joiner can be used with wood (less than 20% moisture), smokeless coal, gas, and oil.

The chimney system should be designed for easy sweeping and maintenance. Sweeping should be carried out by a competent person and at least once a year, preferably twice for solid fuel applications to remove soot and blockages.

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

A list of HETAS registered sweeps is available at www.hetas.co.uk.

 

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