DM54 - 950mm sq. capping for brickwork
At a Glance
- High-quality Isokern DM block system
- Superior double wall insulation design for optimal flue gas temperatures
- Pumice construction for excellent natural heat retention
- Versatile compatibility: Suitable for stoves, open fires, and cookers burning wood, solid fuel, oil, or gas (excluding condensing appliances)
- Easy and quick assembly with detailed installation guides
- HETAS approved and CE marked for safety and quality
- Available in multiple sizes: DM36, DM44, and DM54

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 - 950mm square capping for brickwork is part of the superior Isokern DM block system, a high-quality double module chimney solution. Designed to maintain flue gas temperatures effectively, this system also prevents heat transference to the outer casing, thanks to its double wall construction. This advanced design allows for thermal movement, reducing the risk of cracks and potential leakages or stains.
Moreover, it is simple and quick to assemble, making installation a breeze. Available in three sizes—DM36, DM44, and DM54—this system is versatile and can be used with inserts, stoves, open fires, and cookers burning wood, solid fuel, oil, or gas (excluding condensing appliances like Biomass & Pellets). Pumice, a natural insulator used in the construction, ensures swift reaching of optimal flue gas temperatures, thus enhancing the performance of your heating appliance and reducing condensation and soot build-up.
Approved by HETAS and CE marked, the Isokern DM system meets high standards with the designation number T450 N1 D 3 G(00). Detailed installation instructions are provided in accompanying guides.
SKU: 59-130734
Technical Specifications | |
---|---|
SKU | 59-130734 |
Product Name | DM54 - 950mm Square Capping for Brickwork |
Size | 950mm square |
Material | Pumice |
Warranty | 10 Years |
System Design | Double wall construction for thermal efficiency |
Certification | HETAS Approved, CE marked |
Combustible Distance | 0mm on straights; 38mm on offsets (DM System) |
Compatible Appliances | Stoves, Open Fires, Cookers (wood, solid fuel, oil, or gas) |
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 - 950mm square capping for brickwork is a stellar choice for anyone looking to enhance their chimney system. With top-notch insulating properties and easy installation, it's suitable for a variety of heating appliances. Plus, with our reliable delivery and unbeatable prices, both retail and trade customers nationwide can benefit.
The DM54 - 950mm square capping is designed to finish off brickwork in chimney systems, ensuring optimal performance and safety.
National Flues is a trusted supplier of high-quality fireplaces and flues, renowned for reliable delivery, competitive pricing, and excellent service to both retail and trade customers across the UK.
