DM44 - 740 x 740mm T corbel for external brickwork
At a Glance
- - 740 x 740mm T Corbel design tailored for external brickwork
- - Designed exclusively for the Isokern DM block system
- - Constructed from high-quality, naturally insulating pumice
- - CE marked, HETAS approved with a robust 10-year warranty
- - Compatible with wood, solid fuel, oil, and gas appliances (excludes condensing appliances)
- - Easy-to-follow installation with comprehensive documentation

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 DM44 - 740 x 740mm T corbel for external brickwork is an essential component in the Isokern DM block system. The double module system combines a sturdy outer casing with a high-quality pumice flue that maintains optimal flue gas temperatures. This design prevents heat transference and accommodates thermal movement, reducing the risk of cracks, leaks, or stains.
Isokern DM is CE marked and HETAS approved, ensuring you are getting a product that meets high safety and efficiency standards. This chimney system is versatile, suitable for use with wood, solid fuel, oil, and gas appliances, though not for condensing appliances like Biomass or Pellets. The pumice material acts as a natural insulator, quickly reaching optimal temperature and retaining heat longer, which improves performance and minimises condensation and soot build-up.
Installation is straightforward, guided by our detailed instructions.
SKU: 59-130818
Technical Specifications | |
---|---|
SKU | 59-130818 |
Dimensions | 740 x 740mm (T Corbel); 75mm high |
Material | Pumice |
System | Isokern DM block system |
Standards | CE marked, HETAS approved |
Warranty | 10 Years |
Appliance Compatibility | Wood, Solid Fuel, Oil, and Gas (Not for condensing appliances) |
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 DM44 - 740 x 740mm T Corbel for external brickwork is a top-quality choice for both retail and trade customers. Its robust design and superior insulation make it an ideal addition to any chimney system. Alongside our unbeatable prices and reliable nationwide delivery, it's a smart choice for your next project.
The DM44 - 740 x 740mm T Corbel is used to support and insulate external brickwork in chimney systems, ensuring optimal performance and safety.
Isokern is a renowned brand in the chimney and flue industry, known for its innovative and high-quality pumice-based products that offer excellent insulation and safety features.
