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DM54 - 300mm ID x 150mm high starter flue block (59-129031)
National Flues presents the DM54 starter flue block, a premium chimney accessory designed for modern heating systems. This 300mm ID x 150mm high pumice block combines durability with superior insulation, making it an ideal choice for fireplaces, stoves, and other heating appliances. With its commitment to safety and efficiency, the DM54 is a reliable solution for both domestic and commercial installations, ensuring your chimney operates at peak performance while maintaining compliance with UK safety standards.
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£46.49
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Natural pumice construction for excellent insulation
Double-wall design minimises risk of cracks, leaks and stains
Maintains optimal flue gas temperatures for superior performance
HETAS approved and CE marked for safety
Quick and easy installation for both professionals and DIY enthusiasts
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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.
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.
The DM54 300mm ID x 150mm high starter flue block is an essential component of the Isokern DM block system, a top-tier double module chimney system designed for superior flue gas temperature maintenance and minimal heat transference. The double-wall construction separates the inner and outer parts, enabling thermal movement to reduce the risk of cracks, leaks, and stains. Made from natural pumice, this flue block boasts excellent insulating properties that help your appliance reach optimal performance quickly and sustain it longer, reducing condensation and soot buildup.
Suitable for a variety of heating appliances including inserts, stoves, open fires, and cookers burning wood, solid fuels, oil, or gas (not for condensing appliances including biomass and pellets). The Isokern DM system is HETAS approved and CE marked, ensuring compliance with top safety standards.
SKU: 59-129031
Technical Specifications
Inner Diameter
300mm
Overall Dimensions
420 x 420mm
Height
150mm
Material
Natural Pumice
Approval
HETAS approved, CE marked
Usage
Suitable for inserts, stoves, open fires, and cookers burning wood, solid fuels, oil or gas (not for condensing appliances)
Follow the comprehensive installation guide provided with your purchase. The DM54 is engineered for a straightforward setup; however, it is crucial to ensure that clearance guidelines are strictly adhered to – maintain a 0mm distance on straights and 38mm on offsets. This product is not suitable for use with condensing appliances, including biomass and pellets. If you are uncertain or unfamiliar with proper installation practices, it is recommended to consult a professional installer to ensure safety and optimal performance.
The main benefit of the DM54 starter flue block is its natural insulation properties, thanks to the pumice material. It helps maintain optimal flue gas temperatures and reduces the risk of cracking, leaks, and stains.
No, the DM54 is not suitable for use with condensing appliances, including biomass and pellets. It is designed for use with inserts, stoves, open fires, and cookers burning wood, solid fuels, oil, or gas.
Yes, the DM54 flue block is designed for straightforward and quick installation, making it an ideal choice for both professional builders and DIY enthusiasts.
The DM54 flue block is HETAS approved and CE marked, ensuring it meets high safety and performance standards.
Pumice is a natural insulator, which helps the chimney reach its optimal temperature quickly and maintain it longer, reducing condensation and soot buildup while enhancing overall performance.
The Isokern DM system outer casings are available in three sizes: DM36, DM44, and DM54.
Yes, detailed installation instructions are provided in our guides to ensure correct and safe installation of the DM54 flue block.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Wednesday, April 30th.
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 on a retail basis. Give us a call if you find it cheaper and want to buy from us.
Read our review in our DM54 - 300mm ID x 150mm high starter flue block buyers guide
DM54 Starter Flue Block Buyers Guide
If you are considering enhancing your chimney system, the DM54 starter flue block from National Flues is a superb investment. In this comprehensive guide, we will explore why the DM54 is the perfect choice for your needs, address common concerns, and provide detailed insights into installation and usage.
Introduction
The DM54 starter flue block is a critical component in modern chimney designs. Made from natural pumice, this block not only ensures rapid temperature build-up but also maintains consistent performance throughout the heating cycle. Its innovative double-wall design plays a key role in reducing the risk of cracks, leaks, and unsightly stains, all while ensuring that flue gases are maintained at optimal temperatures.
Why Choose the DM54?
Superior Insulation: The natural properties of pumice offer unmatched thermal insulation. This means that your heating appliance will reach the ideal operating temperature much faster, resulting in improved efficiency and reduced energy costs. Enhanced insulation also reduces the accumulation of condensation and soot, which extends the lifespan of your chimney system.
Robust and Reliable Construction: The double-wall construction creates a clear barrier between the hot inner lining and the cooler outer shell. This design not only prevents thermal stress but also minimises the risk of cracks or other damage arising from expansion and contraction during temperature fluctuations.
Safety and Regulatory Compliance: Safety is paramount when it comes to chimney installation and operation. The DM54 is HETAS approved and CE marked, ensuring that it conforms to the highest safety standards required in the UK. This certification provides peace of mind, knowing that your installation meets all current regulations.
Versatility and Compatibility: The DM54 is engineered to work with a variety of heating appliances. Whether you are using it with a traditional wood-burning stove or a modern oil burner, this flue block delivers consistent performance. It is important to note, however, that this product is not intended for use with condensing appliances such as biomass or pellet systems.
Ease of Installation: Tailored for both professional installers and DIY enthusiasts, the DM54 offers a straightforward and hassle-free installation process. Detailed guidance is provided, making it simple to integrate this vital component into your chimney system without the need for extensive modifications or specialised tools.
Installation Guidelines and Considerations
Installation is a critical part of ensuring the longevity and safety of your chimney system. The DM54 comes with a set of clear and concise instructions to help you integrate it smoothly. It is essential to maintain the advised clearance distances – 0mm on straights and 38mm on offsets – to prevent any risk to adjacent combustibles. If you lack experience with such installations, it is always recommended to engage a qualified professional to avoid any potential hazards.
Addressing Common Objections
Concern: Complexity of Installation
Many potential users worry that installing a new flue block might be overly complicated. In reality, the DM54 is designed with the user in mind, offering a simple yet effective solution that allows for quick setup and integration with most chimney systems. Detailed instructions further ease the process, making it accessible even to those with limited experience.
Concern: Compatibility with Various Appliances
Another common concern is whether the DM54 can be used with different types of heating appliances. The answer is a resounding yes – the DM54 has been engineered to work optimally with a wide range of appliances, including stoves, open fires, and cookers that burn wood, solid fuels, oil, or gas. It is, however, important to steer clear of using this flue block with condensing appliances to ensure maximum performance and safety.
Concern: Longevity and Durability
Users often question the durability of a product made from natural materials. The DM54, crafted from high-grade natural pumice, offers excellent resistance to high temperatures and thermal shocks. Its robustness and inherent thermal insulation properties contribute to a longer service life, making it a cost-effective and reliable choice over the long term.
Why National Flues?
National Flues has built a reputation for providing high-quality chimney systems that adhere to the strictest standards of performance and safety. With a comprehensive range of products, including the DM54, National Flues has become a trusted partner for both trade professionals and homeowners alike. Our commitment to excellence is reflected in every product, ensuring that you receive the best in quality, durability, and efficiency.
Final Thoughts
The DM54 starter flue block is not just an accessory – it is an essential part of any modern chimney system that aims to deliver reliable performance and enhanced safety. With its superior insulation, robust construction, and straightforward installation, the DM54 stands out as a must-have component for your residential or commercial heating system.
If you are looking to upgrade your chimney and ensure that it operates efficiently and safely, the DM54 is the optimal choice. Embrace the quality and reliability offered by National Flues, and enjoy the benefits of a chimney that performs at its best. Add to cart now or call 01670 206 999.
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