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Top Clamp - Ø 200 (20-200-C)

National Flues presents the Top Clamp Ø200, an essential accessory designed to securely support your MI-FLEX flue liner installation. This top chimney clamp offers robust performance and is compliant with HETAS and CE standards, ensuring safe operation with wood, gas, oil, and smokeless coal firing appliances. Read more...
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At a Glance

  • Robust design engineered for MI-FLEX 316 and 904 flue liners
  • Withstands temperatures up to 600°C (T600 rating)
  • Constructed from high-quality 316L stainless steel
  • HETAS and CE approved for safe installation
  • Compatible with wood, oil, gas, and smokeless coal fuel systems

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

The Top Clamp Ø 200 is part of the MF20 MI-FLEX accessory line, expertly designed for use with MI-FLEX 316 and 904 flexible flue liners. This essential component ensures a complete and secure chimney system. Ideal for multiple fuel types including wood (with less than 20% moisture), smokeless coal, gas, and oil, it's built to withstand temperatures up to 600°C (T600 designation).

The clamp supports the vertical weight of the flue liner and, when used with the Top Plate and Top Insert Sleeve, ensures the liner is securely held at the top of the stack. Adhering to Building Regulations Document J, it must be installed within a fully enclosed masonry chimney. The entire system must be designed for easy sweeping and maintenance by competent professionals, with chimneys serving solid fuel appliances recommended to be swept at least twice a year.

Suitable maintenance tools and practices should be used to ensure longevity and safety.

SKU: 20-200-C

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
SKU20-200-C
DesignationBSEN 1856-2 T600 N1 W V2 L50012 G
SystemMI-FLEX Accessories MF20
Material316L Stainless Steel
Colour FinishNatural / Stainless Steel
Fuel CompatibilityWood (<20% moisture), Smokeless coal, Gas, Oil
Temperature RatingUp to 600°C (T600)
ApprovalsHETAS / CE
Ensure the Top Clamp Ø200 is installed as an integral component of your chimney system. It is designed to work effectively with the Top Plate and Top Insert Sleeve accessory, so consider sourcing these optional accessories for a complete solution. The clamp must be fitted within a fully enclosed masonry chimney, strictly following Building Regulations Document J. Installation should be performed by a competent professional to guarantee safety and proper clearance for chimney sweeping. Always check that all components are securely fastened and that there is sufficient clearance for maintenance. Incorrect installation may lead to system failure or safety risks; if in doubt, consult with a certified technician.

The Top Clamp Ø 200 is used to support the vertical weight of MI-FLEX 316 and 904 flexible flue liners at the top of a chimney stack.

Yes, the clamp is suitable for systems that use wood with less than 20% moisture, smokeless coal, gas, and oil.

The Top Clamp Ø 200 can withstand temperatures up to 600°C, matching the T600 designation.

Absolutely. The clamp meets the requirements of Building Regulations Document J, ensuring safe and proper installation.

Chimneys used for solid fuels should be inspected and swept at least twice a year, ideally at the end of the heating season and before the start of the next one.

Sweeping should be carried out by a competent person. For solid fuels, hire a HETAS registered sweep for best results.

You should avoid using chemical cleaners or mild steel tools, as they can damage stainless steel chimneys.

 

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