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Top Plate - Ø 80 (20-80-P)

Discover the superior Top Plate Ø 80 from National Flues – the essential accessory engineered for MI-FLEX systems. This robust support plate, compatible with MI-FLEX 316 and 904 flue liners, stands out with its GALV construction and natural/stainless steel finish. Read more...
Top Plate - Ø 80
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Now only £11.99
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At a Glance

  • Robust design specifically for MI-FLEX 316 and 904 flexible flue liners
  • 400mm square dimensions ensure solid structural support
  • Suitable for multiple fuel types: wood, oil, gas, and smokeless coal
  • High temperature resistance up to 600°C
  • Compliant with Building Regulations Document J and industry standards
  • Manufactured in durable GALV with a natural/stainless steel finish

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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 80 from National Flues is an essential installation accessory for your chimney system. Designed specifically for use with the MI-FLEX 316 and 904 flexible flue liners, this 400mm square plate is crafted to support the vertical weight of the flue liner from the top of the stack. It ensures your chimney system remains robust and compliant with Building Regulations Document J, which mandates that a flexible flue liner must be fully enclosed within a masonry chimney.

The Top Plate Ø 80 is suitable for appliances operating at temperatures up to 600°C and can be used with various fuels, including wood (with less than 20% moisture), smokeless coal, gas, and oil.To maintain the integrity of your chimney system, it's crucial to ensure your chimney stack is properly weatherproofed and that the structure is sound. The Top Plate works seamlessly with the Top Clamp and Top Insert Sleeve to distribute the weight of the flue liner, providing excellent support and durability. Regular maintenance, including sweeping by a HETAS registered professional at least twice a year for solid fuel systems, is recommended to keep your chimney in optimal condition.

Avoid using chemical cleaners or mild steel tools on stainless steel chimneys to prevent damage.

SKU: 20-80-P

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, November 14th. 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.

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Technical Specifications
SKU20-80-P
Dimensions400mm square
MaterialGALV
Colour FinishNatural / Stainless Steel
ApprovalsHETAS / CE
Operating TemperatureUp to 600°C
Compatible FuelsWood (with less than 20% moisture), Smokeless Coal, Gas, Oil
SystemMI-FLEX Accessories MF20
DesignationBSEN 1856-2 T600 N1 W V2 L50012 G
Before installation, confirm that your chimney stack is fully weatherproofed and structurally sound. The Top Plate Ø 80 should be installed at the top of the chimney stack to support the vertical weight of the MI-FLEX flexible flue liner. It is recommended to use the Top Clamp and Top Insert Sleeve as optional accessories to further distribute the load and secure the liner. Ensure that you follow all relevant manufacturer guidelines and Building Regulations Document J. Additionally, professional sweeping and inspection by a HETAS registered engineer twice a year is advised for optimal performance. Avoid using chemical cleaners or mild steel tools on stainless steel components to prevent damage.

The Top Plate Ø 80 measures 400mm square.

The plate is compatible with MI-FLEX 316 and 904 flexible flue liners and can be used on appliances up to 600°C with wood, smokeless coal, gas, and oil.

Yes, it is essential to ensure the chimney stack is fully weatherproofed and in sound condition before installation.

No, Building Regulations Document J specifies that flexible flue liners must be fully enclosed within a masonry chimney. Non-masonry enclosures like timber or plasterboard are not acceptable.

It is recommended to sweep and inspect your chimney system at least twice a year, especially for solid fuel applications. This helps to remove deposits and check for any blockages or damage.

No, chemical cleaners and mild steel tools should not be used on stainless steel chimneys to prevent damage.

For solid fuel applications, you can find HETAS registered sweeps at www.hetas.co.uk.

 

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