Top Plate - Ø 80
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

We Won't Be Beaten On Price
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:
- Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
- Bulk Purchasing Power: We sell a lot, so we can negotiate better rates with suppliers, passing the savings directly to you.
- Operational Efficiency: We have streamlined processes to reduce overhead.
Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.
Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).
“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.
Have Questions?
Phone: 01670 206999
Email: [email protected]
- Info
- Specs
- Install
- FAQs
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
Technical Specifications | |
---|---|
SKU | 20-80-P |
Dimensions | 400mm square |
Material | GALV |
Colour Finish | Natural / Stainless Steel |
Approvals | HETAS / CE |
Operating Temperature | Up to 600u00b0C |
Compatible Fuels | Wood (with less than 20% moisture), Smokeless Coal, Gas, Oil |
System | MI-FLEX Accessories MF20 |
Designation | BSEN 1856-2 T600 N1 W V2 L50012 G |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Thursday, April 3rd. If you need faster stove or fireplace delivery please give us a call. We can often reduce longer lead times if we pay the carrier £25 for express delivery. Visit our Shipping Information page for more information.
Warranty & Returns +
All our products come with warranties. Mi-Flex offers a lifetime guarantee. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.
Price Match Guarantee +
We will match any price like for like. If you find it cheaper within 48 hours, we'll refund the difference.
National Flues Ltd Verdict
The Top Plate Ø 80 is a vital component for any chimney system using MI-FLEX flexible flue liners. National Flues highly recommends this top plate for its durability and compatibility with multi-fuel appliances. With our reliable nationwide delivery service, both retail and trade customers can trust us to provide the best fireplace and flue solutions at unbeatable prices.
The Top Plate Ø 80 is designed to support the vertical weight of MI-FLEX flexible flue liners at the top of a chimney stack, ensuring stability and compliance with building regulations.
National Flues is a leading UK supplier of fireplaces and flues, providing high-quality products to both retail and trade customers nationwide. Known for competitive pricing and reliable delivery, National Flues ensures secure online payments and exceptional customer service.
