× National Flues
We have 100% 5 Star Reviews on Trustpilot
Free Delivery on All Orders Over £100
Enjoy Our Free Flue Design Service
Delivery To Mainland UK Addresses
Call Our Experts on 01670 206999

TWPro BLK - Roof Brace Kit - Ø 150 (55-150-123)

National Flues delivers the TWPro BLK Roof Brace Kit, engineered for the safe and secure stabilisation of chimneys that extend significantly above the roofline. This premium accessory, ideal for solid fuel, wood stoves, and gas/oil appliances, combines robust stainless steel construction with high-density compressed rock wool insulation. With its HETAS Approval and CE marking, our product meets stringent industry standards, making it the perfect choice for both residential and commercial installations. Explore the reliability and versatility of this essential chimney accessory today.
£70.99
Give us a call if you find it cheaper and we'll try to price match.
Payment Options

At a Glance

    Designed for chimneys extending more than 1.5m above the roof level
    Constructed with durable 304 grade (outer) and 316 grade (inner) stainless steel
    Adjustable arms range from 1.5 to 2.3 metres for tailored support
    Fully welded components ensure robust and secure installation
    Insulated with high-density compressed rock wool
    HETAS Approved and CE marked to meet strict industry standards

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 TWPro BLK - Roof Brace Kit - Ø 150 is engineered for use with solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, and oil/gas boilers. Constructed with a durable outer skin made from 304 grade stainless steel and a robust inner skin of 316 grade stainless steel, both 0.4mm thick, this kit ensures longevity and performance. The insulation consists of compressed rock wool, providing a sturdy density of 200kg/m3 TWPro / 128Kg/m3.

Fully welded parts and a distance of 50mm (TWPro) to combustibles enhance safety. This product is HETAS Approved and CE marked, complying with stringent standards: TWPro EN1856-1 T600 N1 W V2 L50040 G50 and more. Installation is straightforward with the TWPro Twin Wall Insulated Chimney parts, securely joined using a Locking Band, ensuring safe operation and durability.

SKU: 55-150-123

Technical Specifications
MaterialOuter: 304 grade stainless steel, Inner: 316 grade stainless steel
Thickness0.4mm each
InsulationCompressed rock wool (200kg/m3 / 128kg/m3)
Adjustable Arm Lengths1.5 to 2.3 metres
ComplianceHETAS Approved, CE marked; Standards: TWPro EN1856-1 T600 N1 W V2 L50040 G50
Installation MethodUtilises TWPro Twin Wall Insulated Chimney parts secured with a Locking Band
Installation is straightforward when you follow the manufacturer’s guidelines. Begin by ensuring that your chimney extends beyond 1.5 metres above the roof level. Adjust the brace kit arms within the 1.5 to 2.3 metre range to achieve optimal stabilisation. Always maintain a minimum clearance of 50mm from any combustibles. The kit components are fully welded, and the installation is completed using a secure Locking Band. We recommend reviewing the installation manual for detailed instructions and safety procedures. If in doubt, seeking assistance from a certified professional can further ensure a safe and compliant installation.

The Roof Brace Kit is designed to stabilise your chimney if it extends 1.5 metres or more above the roof level, ensuring safety and durability.

It is compatible with solid fuel and gas/oil appliances, such as wood stoves, gas coal effect fires, and oil/gas boilers.

The outer skin is made from 304 grade stainless steel and the inner skin from 316 grade stainless steel, both 0.4mm thick.

The insulation is made of compressed rock wool with a density of 200kg/m3 TWPro / 128Kg/m3.

The TWPro Twin Wall Insulated Chimney parts are secured together using a Locking Band, and correct distance from combustibles is maintained.

Yes, it is HETAS Approved and CE marked, meeting high standards like TWPro EN1856-1 T600 N1 W V2 L50040 G50.

The arms of the roof brace kit can be adjusted from 1.5 to 2.3 metres.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, May 20th. Delivery times of products not in our warehouses depend on product availability and shipping. If you need a definitive delivery time give us a call. If you need faster stove or fireplace delivery please also 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. 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 TWPro BLK - Roof Brace Kit - Ø 150 buyers guide

Choose reliability; enhance safety—make this essential purchase today.

Your recently viewed products:

Multiple Payment Options- including Klarna, Clearpay, Mastercard, Visa and Paypal
Free Design Service Click To Call Our Experts