× National Flues
We Won't Be Beaten On Price.
Free Delivery on Orders Over £100
100% 5 Star Reviews on Trustpilot
Free Flue Design Service Available
Need Help? 01670 206999 (8am-5pm)

DM44 - 570mm sq. capping for render (59-130723)

The DM44 - 570mm Square Capping for Render by National Flues is a premium chimney accessory engineered for superior heat management and durability. Designed for stoves, open fires, and cookers, this capping enhances your chimney's performance by reducing condensation and soot buildup. With its advanced double-wall construction and natural pumice composition, it offers reliable insulation and efficiency. A top choice for those in the market for efficient chimney accessories, the DM44 is both HETAS approved and CE marked, serving as the ideal solution for modern heating applications.
Hover to Zoom / Click for Gallery
£67.99
Give us a call if you find it cheaper and we'll try to price match.

 

Payment Options

At a Glance

  • HETAS approved and CE marked
  • Premium pumice construction for optimal insulation
  • Double-wall design for superior heat management
  • Quick and simple installation
  • Compatible with various heating appliances (stoves, open fires, cookers)

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]

The DM44 - 570mm square capping for render is a part of the advanced Isokern Double Module (DM) block system, a premium solution in chimney technology. This system boasts a double-wall structure designed to efficiently maintain flue gas temperatures while preventing unwanted heat transfer to the outer casing. The separation of inner and outer components allows for thermal movement, reducing the risk of cracking and subsequent leaks or stains.

Perfect for stoves, open fires, cookers, and various heating appliances fueled by wood, solid fuel, oil, or gas (note: not suitable for condensing appliances including biomass and pellets). Constructed from pumice, a natural insulator, it ensures rapid attainment of optimal flue gas temperatures and prolonged warmth, boosting the performance of your heating appliance and minimizing condensation and soot buildup. The DM44 system stands out with its HETAS approval and CE marking, ensuring top-tier quality and safety.

Available in outer casing sizes DM36, DM44, and DM54, this chimney system is simple and quick to install, making it a favorite among both residential and trade clients.

SKU: 59-130723

Technical Specifications
SKU59-130723
System Designation (DM System)EN1858 - T450 N1 D 3 G(00)
Liner System DesignationEN1857 - T600 N2 D 3 G
Warranty10 Years
MaterialPumice
Chimney Casing Size570mm square (Available in DM36, DM44, DM54)
Clearance To Combustibles0mm on straights; 38mm on offsets (DM System)
Before installation, ensure the chimney location meets all clearance requirements. Follow the detailed manufacturer guidelines provided in the installation manual. Confirm that all components are correctly aligned within the Isokern DM system and that proper sealants are used to ensure a secure fit. Check for any obstructions or irregularities along the installation path. Both DIY enthusiasts and professionals should adhere to these instructions to maintain warranty and ensure optimal safety performance.

This product is used to cap off chimneys created with the Isokern Double Module (DM) block system, providing a neat and efficient finish for various heating appliances.

The DM44 is suitable for stoves, open fires, and cookers burning wood, solid fuel, oil, or gas, but it is not advisable for use with condensing appliances, including biomass and pellets.

The DM44 is made from pumice, a natural insulator that enhances heat management by quickly reaching and maintaining optimal flue gas temperatures.

Installation instructions are provided in the guides. The system is designed to be straightforward and quick to build, suitable for both professional installers and DIY enthusiasts.

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

Yes, the DM44 is HETAS approved and carries the CE mark, ensuring it meets stringent quality and safety standards.

Yes, the insulating properties of pumice help the chimney reach and maintain optimal temperatures, reducing the likelihood of condensation and soot buildup, thereby enhancing the performance of your heating appliance.
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 DM44 - 570mm sq. capping for render buyers guide

Compatible and other products that may be of interest...

Order now to secure lasting performance and reliability for your heating system.

Your recently viewed products:

Multiple Payment Options- including Klarna, Clearpay, Mastercard, Visa and Paypal