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Joist Support - Ø 150 (15-150-068)

National Flues presents the Joist Support - Ø 150, a premium component engineered for chimney flues. Made from robust stainless steel with superior rockwool insulation, this essential accessory ensures secure support and compliance for woodstoves, oil and gas boilers, and other solid fuel appliances. Enhance your chimney installation with complementary accessories available from National Flues.
The price you pay today £30.99
Give us a call if you find it cheaper and we'll normally price match.

 

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At a Glance

    HETAS Approved and CE marked
    Constructed from premium 304 and 316 stainless steel (0.4mm thick)
    Robust compressed rockwool insulation (200kg/m3 for TWPro / 128kg/m3 for KC)
    Ensures secure support for 150mm chimney flues
    Designed for safe passage through floor joists and fire stop plate compatibility
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, July 1st. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days then please give us a call. We can sometimes 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 and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

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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.

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:

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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: [email protected]

The Joist Support - Ø 150 is a crucial component for ensuring the safety and integrity of your chimney flue system. This joist support is ideal for use with solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, oil and gas boilers, and other solid fuel devices. Constructed with durability in mind, the outer skin features 304-grade stainless steel at a thickness of 0.4mm, while the inner skin is crafted from 316-grade stainless steel of the same thickness.

The insulation comprises densely packed compressed rockwool, offering superior thermal properties with a density of 200kg/m3 for TWPro and 128kg/m3 for KC. All components are fully welded to ensure robust performance. It boasts a distance to combustibles of 50mm for TWPro and 60mm for KC.

This product is HETAS Approved, CE marked, and holds designation numbers TWPro EN1856-1 T600 N1 W V2 L50040 G50 and TWPro EN1856-1 T200 W V2 L50040 O20, among others. Installation is straightforward, requiring just the use of a locking band to secure the twin wall insulated chimney parts. Ensure to maintain the stipulated distance from the flue's exterior to any combustible materials.

SKU: 15-150-068

Technical Specifications
SKU15-150-068
Product NameJoist Support - u00d8 150
Outer Material304 Stainless Steel (0.4mm thick)
Inner Material316 Stainless Steel (0.4mm thick)
InsulationCompressed Rockwool
Density200kg/m3 (TWPro) / 128kg/m3 (KC)
Distance To Combustibles50mm (TWPro) / 60mm (KC)
DesignationTWPro EN1856-1 T600 N1 W V2 L50040 G50 / T200 W V2 L50040 O20
Fuel CompatibilityWood, Oil, Gas, Low Sulphur Coal
ApprovalsHETAS, CE
Install the Joist Support - Ø 150 by first positioning it on the upper floor section, ensuring it spans and properly supports the floor joist where the chimney flue passes through. Use the provided locking band to secure the twin wall insulated parts. Key warnings: Maintain the stipulated distances—50mm for TWPro and 60mm for KC—between the flue and combustible materials. Always follow the manufacturer’s guidelines and local building codes during installation to ensure optimal safety and performance.

The Joist Support - Ø 150 is suitable for any solid fuel and gas/oil appliances, including woodstoves, gas coal effect fires, and oil/gas boilers.

The outer skin is made from 304-grade stainless steel and is 0.4mm thick, whereas the inner skin is made from 316-grade stainless steel and is also 0.4mm thick. It is insulated with compressed rockwool.

Yes, the TWPro version of this joist support is HETAS Approved and CE marked.

For TWPro, the distance to combustibles is 50mm. For KC, the distance is 60mm.

Installation is straightforward and involves securing the twin wall insulated chimney parts using a locking band. Ensure the correct distance is maintained from the flue to any combustible materials.

Designation numbers include TWPro EN1856-1 T600 N1 W V2 L50040 G50 and TWPro EN1856-1 T200 W V2 L50040 O20, among others.

The insulation is compressed rockwool with a density of 200kg/m3 for TWPro and 128kg/m3 for KC.

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