DM36 - 150mm ID x 125mm high starter flue block
At a Glance
- - HETAS approved & CE marked
- - Natural pumice insulation for rapid heat-up
- - Double wall design to accommodate thermal movement
- - Versatile compatibility with wood, solid fuel, oil, and gas appliances
- - Easy, quick installation process
- - Minimised condensation and soot buildup
- - Integral to the Isokern DM block system

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 DM36 - 150mm ID x 125mm high starter flue block is an integral part of the Isokern DM block system, known for its high-quality design and performance. This double-module system maintains flue gas temperatures while effectively preventing heat transference to the outer casing. The unique double wall design allows for thermal movement, reducing the risk of cracks and leaks.
Simple and quick to install, the DM36 is versatile and suitable for use with a range of heating appliances including stoves, open fires, cookers, and inserts burning wood, solid fuel, oil, or gas. However, it's not suitable for condensing appliances like Biomass and Pellets. Constructed from natural pumice, this starter flue block is an excellent insulator, allowing your chimney to reach optimal temperatures swiftly, enhancing the performance of your heating appliance and minimizing condensation and soot buildup.
Approved by HETAS and CE marked, this product meets stringent standards. Follow the installation instructions in the provided guides for the best results.
SKU: 59-126363
Technical Specifications | |
---|---|
ID | 5030 |
SKU | 59-126363 |
Dimensions | 150mm ID x 125mm high; 255 x 255 overall |
Material | Natural Pumice |
System | Isokern DM block system |
Approvals | HETAS, CE marked |
Intended Use | Suitable for wood, solid fuel, oil, and gas appliances |
Warranty | 10 Years |
Distance To Combustibles | 0 on straights; 38mm on offsets |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Thursday, April 3rd. 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.
Compatible and other products that may be of interest...
National Flues Ltd Verdict
At National Flues, we are impressed with the DM36 150mm ID x 125mm High Starter Flue Block for its quality and reliability. Perfect for a variety of heating appliances, this flue block ensures optimal performance. Plus, enjoy our trusted nationwide delivery, catering to both retail and trade customers.
The DM36 - 150mm ID x 125mm High Starter Flue Block is designed to be part of the Isokern DM block system, ensuring efficient and safe operation of various heating appliances by maintaining optimal flue gas temperatures and thermal movement control.
Isokern, a renowned brand in the fireplace and flue industry, is known for its high-quality pumice products that offer excellent insulation and durability. Trusted by professionals and homeowners alike for superior performance and reliability.
