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Top Plate - Ø 200 (20-200-P)

National Flues presents the Top Plate Ø 200, the ultimate accessory for MI-FLEX chimney systems. Engineered to support flexible flue liners, this top plate is an essential component for ensuring compliance with Building Regulations Document J. Read more...
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At a Glance

  • 400mm square design for a precise fit
  • Engineered for temperatures up to 600°C (T600)
  • Compatible with MI-FLEX 316 and 904 flexible flue liners
  • Natural / Stainless Steel finish for durability and aesthetics
  • Suitable for use with wood (<20% moisture), oil, gas, and smokeless coal appliances

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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:

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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 Top Plate Ø 200, measuring 400mm square, is an essential accessory for ensuring the integrity and functionality of your chimney system. Designed to be used with MI-FLEX 316 and 904 flexible flue liners, this top plate supports the weight of the liner at the top of the stack. It is built for strength and durability, handling temperatures up to 600°C (T600 designation).

The installation must comply with Building Regulations Document J, which specifies that a flexible flue liner must be enclosed entirely within a masonry chimney. This top plate, in conjunction with a Top Clamp and Top Insert Sleeve, provides a complete and secure solution for flue installation. Ideal for use with wood (<20% moisture), smokeless coal, gas, and oil appliances, this top plate is tailored to high-performance standards.

Regular maintenance, including chimney sweeping by a HETAS-registered professional, is recommended to ensure optimal performance and longevity.

SKU: 20-200-P

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
Size400mm square
MaterialGalvanised Steel
Colour FinishNatural / Stainless Steel
Temperature Rating600°C (T600)
System CompatibilityMI-FLEX 316 and 904 flexible flue liners
ApprovalsHETAS / CE
Fuels CompatibilityWood (<20% moisture), Oil, Gas, Smokeless Coal
For a safe and compliant installation, ensure that the Top Plate Ø 200 is fitted at the top of your masonry chimney where the MI-FLEX flexible flue liner terminates. It is essential to secure the top plate using the appropriate top clamp and insert sleeve. Installation must comply with Building Regulations Document J, which dictates that the flue liner and its supporting accessories be entirely enclosed within a masonry structure. Although some experienced DIY enthusiasts may attempt installation, we strongly recommend that a HETAS-registered professional carry out the process to guarantee proper installation and safety.

The top plate measures 400mm square, making it an ideal fit for MI-FLEX chimney systems.

This top plate is designed for use with MI-FLEX 316 and 904 flexible flue liners, suitable for wood (<20% moisture), smokeless coal, gas, and oil appliances.

The top plate can handle temperatures up to 600°C, ensuring it can cope with high-performance flue systems.

While DIY installation is possible, we strongly recommend having the chimney system installed by a competent person to ensure it complies with Building Regulations Document J.

Regular maintenance and chimney sweeping by a HETAS-registered professional are essential. Cleaning should be conducted at least twice a year for solid fuel appliances.

No, Building Regulations Document J requires that the flue liner and associated components must be fully enclosed within a masonry chimney.

A list of HETAS-registered chimney sweeps can be found at www.hetas.co.uk for safe and professional cleaning services.

 

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