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Wall Sleeve - Ø 150 (15-150-098)

National Flues presents the Wall Sleeve Ø 150mm, a top-quality chimney flue accessory designed for robust and efficient performance. Ideal for woodstoves, gas boilers, and various other fuel appliances, this wall sleeve is engineered with premium stainless steel and rockwool insulation. Read more...
Wall Sleeve - Ø 150
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Now only £33.99
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At a Glance

  • High-grade stainless steel construction (304 outer, 316 inner), ensuring durability and corrosion resistance.
  • Compressed rockwool insulation optimised for TWPro (200kg/m³) and KC (128kg/m³) systems.
  • HETAS-approved and CE-marked for reliable safety compliance.
  • Designed with specific distances to combustibles: 50mm (TWPro) and 60mm (KC).
  • Suitable for multiple fuel types including wood, oil, gas, and low sulphur coal.
  • Easy installation with a secure Locking Band and option for taper-cutting at 45° angles.
  • Robust and efficient design ideal for both trade and retail customers.

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.
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  • 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

The Wall Sleeve Ø 150mm is designed to safeguard your chimney flue system as it passes through external walls. Ideal for use with various solid fuel, gas, and oil appliances—including woodstoves, gas coal effect fires, and boilers—this wall sleeve adds a layer of protection and ensures compliance with safety standards. Constructed from high-quality materials, the outer skin features 304-grade stainless steel with a thickness of 0.4mm, while the inner skin is made of robust 316-grade stainless steel.

The insulation comprises compressed rockwool with densities of 200kg/m³ for TWPro and 128kg/m³. The entire assembly is fully welded for enhanced durability, with specific distance-to-combustibles requirements of 50mm and 60mm for TWPro and KC systems, respectively. HETAS-approved and CE-marked, this wall sleeve guarantees regulatory compliance.

Installation is straightforward; the sleeve will need to be taper-cut if passing through the wall at a 45-degree angle, and all parts are secured with a Locking Band. Keep a safe distance from any combustible materials to ensure optimal performance.

SKU: 15-150-098

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
SKU15-150-098
Outer Material304 Stainless Steel, 0.40mm thick
Inner Material316L Stainless Steel, 0.40mm thick
InsulationCompressed rockwool (200kg/m³ for TWPro, 128kg/m³ for KC)
ApprovalHETAS / CE
Distance To CombustiblesTWPro: 50mm, KC: 60mm
Compatible AppliancesWoodstoves, gas coal effect fires, oil boilers, low sulphur coal appliances
Before commencing installation, ensure that all safety guidelines are in place. The Wall Sleeve Ø 150mm must be secured with the provided Locking Band to keep all components in position. If your chime passes through an external wall at a 45-degree angle, a taper-cut is required for a neat flush finish—this can be achieved smoothly with a grinder or hacksaw. Always maintain the necessary safe distance from any combustible materials (50mm for TWPro systems and 60mm for KC systems) and consult local regulations for additional clearance requirements.

A Wall Sleeve is used to protect the chimney flue where it passes through an external wall, adding an extra layer of safety and insulation.

Yes, it is suitable for use with gas/oil appliances, including gas coal effect fires and oil boilers.

The Wall Sleeve features an outer skin of 304-grade stainless steel and an inner skin of 316-grade stainless steel, both 0.4mm thick, with insulation made of compressed rockwool.

Yes, the Wall Sleeve Ø 150mm is HETAS-approved and CE-marked, ensuring it meets safety and performance standards.

The Wall Sleeve should be installed with a Locking Band to secure all parts. Ensure a safe distance from combustible materials and taper-cut the sleeve if passing through the wall at a 45-degree angle.

For TWPro systems, maintain a 50mm distance from combustibles, and 60mm for KC systems.

Yes, you can use a grinder or a hacksaw to taper-cut the sleeve for a flush fit when installing at a 45-degree angle.

 

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