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Top Insert Sleeve - Ø 180

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The Top Insert Sleeve Ø 180 is designed to slide seamlessly inside the flexible chimney liner, working in conjunction with the Top Plate and Top Clamp to provide robust support. Essential for maintaining the structural integrity of your flue liner, this sleeve ensures that the liner remains securely in place at the top of the stack.

£16.99 incl VAT

  •   Description  
  •   Product Details  

The Top Insert Sleeve Ø 180 is a crucial accessory in the MI-FLEX 316 and 904 flexible flue liner range. Designed for flawless compatibility, this sleeve ensures a secure fit at the top of your chimney installation. Engineered to withstand temperatures up to 600°C, it is suitable for use with various fuels, including wood (with less than 20% moisture), smokeless coal, gas, and oil. Compliance with Building Regulations Document J is vital, as it mandates that flexible flue liners must be fully enclosed within a masonry chimney, ruling out non-masonry enclosures like timber or plasterboard. The Top Insert Sleeve works in tandem with the Top Plate and Top Clamp, ensuring the flue liner's weight is effectively supported without compromising its integrity. Regular maintenance is essential for longevity and safety, with an annual inspection recommended, and bi-annual sweeping for solid fuel appliances to remove deposits and blockages. Let’s keep your chimney system reliable and efficient with this top-tier product from National Flues.

  • SKU: 20-180-PS
  • Item: Top Insert Sleeve - u00d8 180
  • 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?

The Top Insert Sleeve Ø 180 is used to secure and stabilise the flexible chimney liner at the top of the installation, ensuring a durable and safe setup.

Brand Summary

National Flues is a leading supplier of fireplaces and flues in the UK, serving both retail and trade customers nationwide. Renowned for competitive pricing and reliable delivery, National Flues combines quality products with exceptional service.

National Flues Verdict

The Top Insert Sleeve Ø 180 is an essential component for secure and efficient chimney installations. At National Flues, we pride ourselves on delivering nationwide to both retail and trade customers. Trust us for reliable service and unbeatable prices.

Our Rating
9.7/10

FAQs

The Top Insert Sleeve Ø 180 is used to secure and support the flexible chimney liner at the top of the installation, in conjunction with the Top Plate and Top Clamp.

This sleeve is specifically designed for use with MI-FLEX 316 and 904 flexible flue liners.

The sleeve is suitable for use with wood (with less than 20% moisture), smokeless coal, gas, and oil, and it can withstand temperatures up to 600°C.

Yes, Building Regulations Document J requires that a flexible flue liner must be installed entirely within a masonry chimney.

It is recommended that chimneys serving solid fuel appliances be swept at least twice a year, at the end of the heating season and at the start of the next heating season.

No, chemical cleaners and mild steel tools should not be used. Only use appropriate tools and methods as recommended by a competent person.

A list of HETAS registered sweeps can be found at www.hetas.co.uk.