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DM54 - 300mm ID 545mm square support block (59-129043)

Discover the Isokern DM54 - 300mm ID 545mm Square Support Block, a premium chimney accessory engineered for durability and peak efficiency. This product is an integral component of the Isokern DM block system, expertly crafted from natural pumice and designed to serve a range of heating appliances. Read more...
DM54 - 300mm ID 545mm square support block
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At a Glance

  • High-quality pumice construction for superior insulation
  • Designed for a 300mm ID and 545mm square installation
  • Integral part of the Isokern DM block system
  • Dual-wall design to preserve flue gas temperatures and prevent external heat transfer
  • HETAS Approved and CE marked for enhanced safety and reliability

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

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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.
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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: sales@nationalflues.com

The DM54 - 300mm ID 545mm square support block, part of the Isokern DM block system, offers a superior solution for your chimney needs. This high-quality system chimney features a dual-wall design that expertly maintains flue gas temperatures and prevents heat transference to the outer casing. This separation of the inner and outer components not only allows for thermal movement but also reduces the risk of cracking, leaking, or staining.

The DM54 is simple and quick to build, making it a convenient choice for various applications. Available in three outer casing sizes - DM36, DM44 & DM54, this system is suitable for use with inserts, stoves, open fires, and cookers burning wood, solid fuel, oil, or gas (excluding condensing appliances such as Biomass & Pellets). Constructed from pumice, a natural insulator, this support block ensures that flue gases quickly reach their optimum temperature, aiding in the performance and efficiency of your heating appliance.

The DM54 keeps the chimney warmer for longer, reducing condensation and soot build-up. HETAS Approved and CE marked, the Isokern DM chimney system ensures top-notch safety and performance. For the best results, always refer to the installation instructions provided.

SKU: 59-129043

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

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Technical Specifications
SKU59-129043
Internal Diameter300mm
External Dimension545mm square
MaterialPumice
Outer Casing OptionsDM36, DM44, DM54
Warranty10 Years
ComplianceHETAS Approved, CE marked
Fuel CompatibilityWood, Solid Fuel, Oil, Gas (excluding condensing appliances such as Biomass & Pellets)
SystemDual Wall Chimney System
Distance To Combustibles0 on straights; 38mm on offsets on DM System
• Always adhere to the installation instructions provided with the product to ensure compliance with safety standards. • Before installation, verify the clearance distances, particularly the 38mm offset requirement for the DM System on combustible materials. • Ensure the chimney block is securely integrated with its adjacent components using the recommended mortar and fixings. • For retrofit applications, double-check compatibility with the existing chimney design to avoid performance issues. • Regularly inspect and maintain the system according to manufacturer guidelines to sustain optimal performance.

The DM54 Support Block is used as part of the Isokern DM block system in chimney construction to maintain flue gas temperatures and prevent heat transference.

Yes, it is suitable for use with wood, solid fuel, oil, and gas (excluding condensing appliances like Biomass & Pellets).

Pumice is a natural insulator that helps to quickly reach optimal temperatures and retains heat longer, improving chimney performance and reducing condensation and soot build-up.

Yes, the DM54 double module system is designed for simple and quick installation. Always refer to detailed installation guides for best results.

Yes, the Isokern DM chimney system is HETAS Approved and CE marked, ensuring high safety and performance standards.

The DM54 is designed for new installations but can be used in retrofit configurations if compatible with the existing setup.

The Isokern DM chimney system is available in three outer casing sizes: DM36, DM44, and DM54.

 

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