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Screw-FIX Increaser - Ø 175-200mm

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This high-quality 0.6mm 316 stainless steel adaptor is designed to be a transitional joint connecting a single wall flue system to the MI-FLEX flexible flue liner, increasing the diameter by 25mm.

£39.99 incl VAT

  •   Description  
  •   Product Details  

The Screw-FIX Increaser - Ø 175-200mm is a top-quality accessory expertly designed for use with MI-FLEX 316 and 904 flexible flue liners. This 0.6mm stainless steel adaptor serves as a transitional joint, increasing the diameter by 25mm from a single wall connecting flue system to a flexible flue liner. Compliant with Building Regulations Document J, it's suitable for appliances operating at temperatures up to 600°C (T600 designation), including those using wood with less than 20% moisture, smokeless coal, gas, and oil. The increaser must be securely fitted within a masonry chimney and is designed to ensure a gas-tight seal, using fire cement, ceramic rope, or high-temperature sealant. Regular maintenance and sweeping by a competent person are advised, particularly for solid fuel appliances.

  • SKU: 25-175-MR
  • Item: Screw-FIX Increaser - u00d8 175-200mm
  • Designation:: BSEN 1856-2 T600 N1 W V2 L50012 G
  • System:: MI-FLEX Accessories MF20
  • Material:: 316L
  • Colour Finish:: Stainless Steel / NATURAL
  • Fuels:: Wood, Oil, Gas, Smokeless coal
  • Approvals::
  • : CE / HETAS

What is it for?

The Screw-FIX Increaser is designed to connect a rigid single wall flue system to a flexible flue liner, increasing the diameter by 25mm.

Brand Summary

National Flues is a reliable supplier of fireplaces and flue systems, known for competitive prices and dependable nationwide delivery. Catering to both retail and trade customers, National Flues offers secure online payments and trade accounts.

National Flues Verdict

The Screw-FIX Increaser - Ø 175-200mm is an exceptional product for ensuring a seamless connection between flue systems. With reliable nationwide delivery and options for both retail and trade customers, National Flues is your go-to supplier for top-quality flue and fireplace components.

Our Rating
9.7/10

FAQs

The Screw-FIX Increaser is specifically designed for use with MI-FLEX 316 and 904 flexible flue liners.

The Screw-FIX Increaser is suitable for use with wood (less than 20% moisture), smokeless coal, gas, and oil.

Yes, it complies with the Building Regulations Document J, requiring the increaser to be installed within a masonry chimney.

The Screw-FIX Increaser can handle temperatures up to 600°C (T600 designation).

The connection should be secured using fire cement, ceramic rope, or high-temperature sealant to ensure a gas-tight seal.

No, the increaser must be enclosed within a masonry chimney. Non-masonry enclosures like timber or plasterboard are not acceptable.

The flue system should be inspected and cleaned yearly, but for solid fuel appliances, sweeping twice a year is recommended.