TWPro GREY - Joist Support - Ø 150
At a Glance
- - Constructed from premium 304/316-grade stainless steel
- - HETAS approved and CE marked for enhanced safety
- - Engineered for even weight distribution through floor joists
- - Complies with strict EN standards suitable for wood, oil, gas, and low sulphur coal appliances
- - Insulated with high-density compressed rockwool for superior thermal protection

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 TWPro GREY 150mm Joist Support is expertly designed to provide sturdy support when your chimney passes through floor joists. Ideal for use with solid fuel and gas/oil appliances, such as woodstoves, gas coal effect fires, oil, and gas boilers, this robust support ensures safety and efficiency. Constructed with an outer skin of 304-grade stainless steel and an inner skin of 316-grade stainless steel, each 0.4mm thick, it boasts durable and reliable performance.
The insulation consists of compressed rockwool with a density of 200kg/m3, ensuring exceptional thermal protection. Fully welded parts and a required 50mm distance to combustibles underscore its commitment to safety. TWPro is both HETAS Approved and CE marked, bearing designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20.
Installation is straightforward with Locking Bands securing the parts, making this joist support an essential component for your chimney system.
SKU: 56-150-068
Technical Specifications | |
---|---|
SKU | 56-150-068 |
System | TWPro GREY |
Inner Material | 316L Stainless Steel - 0.40mm thick |
Outer Material | 304 Stainless Steel - 0.40mm thick |
Insulation | Compressed rockwool (200kg/m3) |
Fuel Compatibility | Wood, Oil, Gas, Low sulphur coal |
Approvals | HETAS, CE |
Clearance | 50mm distance to combustibles |
Designation Numbers | EN1856-1 T600 N1 W V2 L50040 G50; EN1856-1 T200 W V2 L50040 O20 |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, April 4th. 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.
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National Flues Ltd Verdict
At National Flues, we pride ourselves on offering high-quality products like the TWPro GREY 150mm Joist Support. Rarely beaten on price and delivering reliably nationwide, this support is a perfect choice for both retail and trade customers.
The TWPro GREY Joist Support is designed to support a chimney as it passes through floor joists, ensuring even weight distribution and safety.
National Flues is a leading supplier of fireplaces and flues in the UK, serving both retail and trade customers with top-quality products and reliable nationwide delivery.
