DM54 - 800mm square corbel for brickwork
At a Glance
- Constructed from natural pumice for excellent thermal insulation
- HETAS approved and CE marked for safety and quality
- Modular design offering ease of installation
- Tailored for a variety of heating appliances including wood-burning stoves, solid fuel cookers, oil and gas appliances (excluding condensing models)
- Reliable performance with a 10-year warranty

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.
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 DM54 - 800mm square corbel from Isokern is designed to offer a high-quality and efficient solution for your chimney system needs. This double module block system maintains flue gas temperatures consistently while preventing heat transference to the outer casing. The unique separation of inner and outer components allows for thermal movement, reducing risks of cracking and leaks.
Available in three sizes—DM36, DM44, and DM54—this system is suitable for a range of applications including wood-burning stoves, solid fuel cookers, oil and gas appliances (excluding condensing models). The natural insulating properties of pumice make this product exceptionally efficient. By rapidly achieving and maintaining optimum temperature, it supports the peak performance of your heating appliance and minimises condensation and soot build-up.
With HETAS approval and CE marking, the DM54 assures safety and quality. Installation is straightforward with provided guides.
SKU: 59-130735
Technical Specifications | |
---|---|
Dimensions | 800mm square, 75mm height |
Material | Pumice |
Approvals | HETAS approved, CE marked |
Compatibility | Wood-burning stoves, solid fuel cookers, oil/gas appliances (excluding condensing models) |
System Types | DM36, DM44, DM54 |
Warranty | 10 years |
Distance To Combustibles | 0 on straights; 38mm on offsets for DM System |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, April 4th. 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.
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National Flues Ltd Verdict
The DM54 - 800mm square corbel from Isokern is a top-of-the-line choice for anyone looking to invest in quality chimney systems. National Flues is proud to supply this product nationwide, catering to both retail and trade customers with reliable delivery and exceptional service.
The DM54 - 800mm square corbel is designed to provide reliable and efficient support for chimney systems, ensuring optimal thermal performance and reduced risk of leaks and cracking.
Isokern is a trusted name in high-quality chimney systems, known for their innovative use of pumice as a natural insulator. Their products are designed to provide superior thermal performance and durability.
