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Top Plate - Ø 300

The MI-FLEX Top Plate Ø 300 is a premium accessory built to support and secure your flexible flue liner installations. Engineered with precision and durability in mind, this top plate is an essential component for both domestic and trade chimney systems. Its compatibility with multiple fuel types su... More...
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Now only £14.99
Including VAT Buy with confidence. If you find this cheaper within 48 hours of checkout, we'll refund the difference.

At a Glance

  • - Robust top support for MI-FLEX flue liners
  • - Withstands temperatures up to 600°C (T600)
  • - Suitable for wood (with ≤20% moisture), oil, gas, and smokeless coal
  • - Made of durable GALV with a Natural/Stainless Steel finish
  • - Complies with Building Regulations Document J for safe installations

 

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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).

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Have Questions?
Phone: 01670 206999
Email: [email protected]

The Top Plate Ø 300 is an essential component for anyone installing MI-FLEX 316L and 904 flexible flue liners. Designed to provide robust support at the top of your chimney stack, this top plate works in conjunction with a Top Clamp and Top Insert Sleeve to safely bear the vertical (dead) weight of your flue liner. As per Building Regulations Document J, it is imperative that flue liners are installed entirely within a masonry chimney for safety and efficiency.

Suitable for use at up to 600°C (T600), the plate can be deployed on appliances burning wood (with less than 20% moisture), smokeless coal, gas, and oil. Ensuring a weatherproofed chimney stack and sound chimney construction are prerequisites for its installation.

SKU: 20-300-P

Technical Specifications
SKU20-300-P
MaterialGALV
Colour FinishNatural / Stainless Steel
DesignationBSEN 1856-2 T600 N1 W V2 L50012 G
SystemMI-FLEX Accessories MF20
Temperature RatingUp to 600u00b0C (T600)
Fuel CompatibilityWood (with u226420% moisture), Oil, Gas, Smokeless Coal
ApprovalsHETAS / CE
- Ensure your masonry chimney is fully weatherproofed and structurally sound before installation. - Install the Top Plate Ø 300 within the chimney stack in compliance with Building Regulations Document J. - Use in conjunction with the Top Clamp and Top Insert Sleeve to safely support the vertical load of the flue liner. - Follow the manufacturer’s installation guidelines precisely to ensure safety and performance. - Regular maintenance is required; have your chimney swept at least twice a year by a competent professional. - Avoid the use of chemical cleaners and mild steel tools to maintain the integrity of the stainless steel components.

The Top Plate Ø 300 is compatible with MI-FLEX 316L and 904 flexible flue liners.

No, Building Regulations Document J specifies that flexible flue liners must be installed within a masonry chimney.

It is designed to withstand temperatures of up to 600°C (T600 designation).

It is suitable for use with wood (with less than 20% moisture), smokeless coal, gas, and oil.

Yes, regular maintenance and sweeping by a competent person are required. Chimneys serving solid fuel appliances should be swept at least twice a year.

No, chemical cleaners and mild steel tools should not be used for maintaining stainless steel chimneys.

Yes, the chimney stack must be fully weatherproofed and structurally sound before installation.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, April 8th. 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.

Read our buyers guide for this Top Plate - Ø 300

National Flues Ltd Verdict

At National Flues, we're impressed by the efficiency and durability of the Top Plate Ø 300. Perfect for both retail and trade customers, and with our reliable nationwide delivery, you won't find a better deal elsewhere!

The Top Plate Ø 300 is used to support the weight of MI-FLEX flexible flue liners at the top of a chimney stack.

MI-FLEX is known for producing high-quality flexible flue liners and accessories, ensuring safety and efficiency for your chimney systems.

 

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Take the definitive step for a safer, more reliable chimney system by ordering our Top Plate Ø 300 today!

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