Top Plate - Ø 100
At a Glance
- Supports the vertical weight of MI-FLEX 316 & 904 flexible flue liners
- Suitable for wood, oil, gas, and smokeless coal appliances
- Engineered to withstand temperatures up to 600°C
- Complies with Building Regulations Document J requirements
- Constructed from durable, galvanised steel with a natural/stainless finish
- Integrates seamlessly with Top Clamp and Top Insert Sleeve accessories

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 100, measuring 400mm square, is an essential accessory when installing MI-FLEX 316 and 904 flexible flue liners. It works jointly with the Top Clamp and Top Insert Sleeve, effectively supporting the vertical weight of your flue liner at the stack's apex. Designed for multi-fuel applications, this top plate ensures compliance with Building Regulations Document J, which mandates that all flexible flue liners must be enclosed within a masonry chimney.
It is ideal for use with wood (moisture content <20%), smokeless coal, gas, and oil appliances, and capable of withstanding temperatures up to 600°C.To ensure a secure installation, it is crucial that your chimney stack is weatherproof and structurally sound. Chimney pots should be free from cracks and have appropriate flaunching at the top. Regular maintenance of your chimney system is also essential, with sweeping recommended at least once a year by a certified professional.
For solid fuel appliances, it is advisable to conduct sweeps twice annually.
SKU: 20-100-P
Technical Specifications | |
---|---|
SKU | 20-100-P |
Dimensions | 400mm square |
Material | Galvanised Steel |
Colour Finish | Natural / Stainless Steel |
Temperature Rating | Up to 600u00b0C |
Fuel Compatibility | Wood, Oil, Gas, Smokeless Coal |
Certifications | HETAS, CE |
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 100 is a vital component for any chimney installation using MI-FLEX 316 or 904 flue liners. At National Flues, we guarantee unbeatable prices, reliable nationwide delivery, and exceptional customer service for both retail and trade customers.
The Top Plate - Ø 100 is designed to support the vertical weight of a flexible flue liner at the top of a chimney stack in multi-fuel applications.
National Flues is a leading supplier of fireplaces and flues across the UK, known for competitive pricing, reliable delivery, and exceptional service to both retail and trade customers.
