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Joist Support - Ø 125 (15-125-068)

National Flues presents the Joist Support - Ø 125, a premium chimney support solution engineered for secure and efficient installations through floor joists. Ideal for solid fuel, gas, and oil appliances, this high-performance support provides unmatched durability and safety, making it the perfect choice for your chimney installation project.

What it’s for

The Joist Support - Ø 125mm is used to support chimneys as they pass through floor joists, providing a secure and stable installation for various heating appliances.

Full features & benefits

  • ✓
    Durable stainless steel ensures long-lasting performance and resistance to corrosion
  • ✓
    High-density rockwool insulation optimises thermal efficiency and safety
  • ✓
    HETAS and CE approvals guarantee adherence to rigorous safety standards
  • ✓
    Even load distribution reduces structural stress on your building
  • ✓
    Easy installation saves valuable time and minimises potential errors
  • ✓
    Versatile design is compatible with woodstoves, gas, oil boilers, and low sulphur coal appliances
Joist Support - Ø 125
IN STOCK
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Now only £22.99
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At a Glance

  • High-quality stainless steel construction (304 outer, 316 inner)
  • High-density rockwool insulation for thermal protection
  • Certified HETAS and CE for strict safety compliance
  • Precisely engineered for chimneys passing through floor joists
  • Even weight distribution for enhanced structural stability
  • Straightforward installation with the provided Locking Band
  • Versatile use for multi-floor applications and various fuel types

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: sales@nationalflues.com

Our Joist Support - Ø 125mm is specifically designed for solid fuel and gas/oil appliances like woodstoves, gas coal effect fires, and boilers. Crafted with precision, the outer skin is made from 304 grade stainless steel, while the inner skin uses 316 grade stainless steel, both with a thickness of 0.4mm. The insulation is composed of high-density compressed rockwool, offering densities of 200kg/m3 for TWPro and 128kg/m3.

This joist support is fully welded for enhanced durability and safety. The minimal distance to combustibles is 50mm for TWPro and 60mm for KC. Moreover, the product is approved by HETAS and CE marked, ensuring compliance with stringent safety standards.

Installation is straightforward with the provided Locking Band, ensuring you maintain the required distance from combustibles such as wood and plasterboard.

SKU: 15-125-068

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

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Technical Specifications
Material Outer304 Stainless Steel - 0.40mm thick
Material Inner316 Stainless Steel - 0.40mm thick
Insulation Density200kg/m3 (TWPro) / 128kg/m3 (KC)
Minimum Distance To Combustibles50mm (TWPro), 60mm (KC)
Load Support Maximum Distance3 metres
Applicable FuelsWood, Oil, Gas, Low sulphur Coal
ApprovalsHETAS / CE
System CompatibilityTWPro / KC
• Ensure you have the provided Locking Band available before starting the installation. • Confirm the installation area complies with minimum distances from combustibles (50mm for TWPro and 60mm for KC). • Securely fix the joist support to the designated floor joist, ensuring correct alignment for even load distribution. • Review and follow all manufacturer guidelines for proper setup. • **Warning:** Always maintain clearances from combustible materials such as wood and plasterboard to prevent fire hazards.

Yes, our Joist Support - Ø 125mm is compatible with solid fuel, gas, and oil appliances, including woodstoves, gas coal effect fires, and boilers.

The joist support features an outer skin made from 304 grade stainless steel and an inner skin from 316 grade stainless steel, both with a thickness of 0.4mm. The insulation is high-density compressed rockwool.

Absolutely. Our Joist Support - Ø 125mm is HETAS Approved and CE marked, meeting rigorous safety standards.

For TWPro, the recommended distance is 50mm, and for KC, it is 60mm. Ensure you maintain this distance from materials like wood and plasterboard.

Installation is straightforward. The parts are secured using a Locking Band. Make sure to adhere to the required distance from combustibles during installation.

Yes, our Joist Support - Ø 125mm is designed to support chimneys passing through multiple floor joists, ensuring safe and even weight distribution.

The Joist Support - Ø 125mm is suitable for use with TWPro Twin Wall Insulated Chimney parts as well as other compatible chimney systems.

 

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