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DM36 - 360mm square casing x 250mm high (59-130714)

National Flues presents the DM36 Chimney Flue System, a high-performance chimney flue crafted from natural pumice. Ideal for stoves, open fires, and cookers, this system is engineered to deliver reliable thermal efficiency and durability. Read more...
DM36 - 360mm square casing x 250mm high
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Now only £36.99
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At a Glance

  • Robust double wall design for superior thermal retention
  • Constructed from high-quality pumice for effective insulation
  • Optimised to maintain flue gas temperatures and reduce condensation
  • Versatile use with wood, solid fuel, oil, and gas appliances
  • HETAS approved and CE marked, ensuring reliable safety and performance

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.

Have Questions?
Phone: 01670 206999
Email: sales@nationalflues.com

The DM36 Chimney Flue System, featuring a 360mm square casing x 250mm high, is a leading solution in the market for anyone seeking a robust and efficient chimney system. This high-quality double module Isokern DM block system is designed to maintain optimal flue gas temperatures while preventing heat from transferring to the outer casing. The unique double wall system allows for independent thermal movement, significantly reducing the risk of cracking and subsequent leaks or stains.

Constructed from pumice, a natural insulator, the DM36 provides unparalleled thermal properties. It enables the flue gases to quickly reach optimal operating temperatures, enhancing the performance of your heating appliance. The insulation also keeps the chimney warmer for longer periods, reducing condensation and soot buildup.

Perfect for use with wood, solid fuel, oil, and gas (excluding condensing appliances like biomass and pellets), the DM36 is HETAS approved and CE marked, making it a reliable choice for any home or business. Installation is straightforward, and the system is available in three outer casing sizes: DM36, DM44, and DM54.

SKU: 59-130714

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, November 14th. 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.

This is us — real advice over the phone, or at the counter, and real stock in our warehouse.

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Technical Specifications
Dimensions360mm square casing x 250mm high
MaterialPumice
Designation DM SystemEN1858 - T450 N1 D 3 G(00)
Designation Liner SystemEN1857 - T600 N2 D 3 G
Warranty10 Years
Fuel CompatibilityWood, Solid Fuel, Oil, Gas (excludes condensing appliances)
Distance To Combustibles0mm on straights; 38mm on offsets on DM System
Casing OptionsDM36, DM44, DM54
ApprovalsHETAS approved, CE marked
The DM36 is engineered for straightforward installation. Begin by ensuring a stable, level base for the casing, and follow the detailed manufacturer guidelines provided in the installation manual. Pay special attention to the minimum safe distances, particularly the 38mm offset requirement for DM Systems. For enhanced stability and insulation, optional accessories such as support brackets and insulation kits are available and can be integrated seamlessly. It is advisable to consult a professional installer if you are unfamiliar with chimney flue setups, ensuring optimal performance and adherence to safety regulations.

The DM36 is suitable for inserts, stoves, open fires, and cookers burning wood, solid fuel, oil, or gas. It is not suitable for condensing appliances including biomass and pellets.

Pumice is a natural insulator that retains heat, helping the chimney to quickly reach and maintain optimal temperatures, thereby improving the performance of your heating appliance and reducing condensation and soot buildup.

Yes, the DM36 is designed for straightforward installation and comes with comprehensive installation instructions.

The DM36 is HETAS approved and CE marked, ensuring it meets high-quality and safety standards.

Yes, National Flues provides reliable nationwide delivery, serving both retail and trade customers.

Yes, National Flues offers trade accounts with benefits tailored for trade customers.

The double wall system helps maintain flue gas temperatures while allowing for thermal movement. This reduces the risk of cracking, leaking, or staining, ensuring the longevity and reliability of the chimney system.

 

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