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Wall Sleeve 45° Adjustable - Ø 100 (15-100-100)

Discover National Flues' Wall Sleeve 45° Adjustable Ø 100mm – the ultimate solution for safeguarding your chimney flue. Engineered in high-quality stainless steel, this product is perfect for installations involving wood stoves, gas, oil, or coal-effect fires. Read more...
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At a Glance

  • Durable dual-layer construction: Outer 304 stainless steel and inner 316 stainless steel, each 0.4mm thick
  • Pre-cut 45° design allowing manual adjustment for tailored installation
  • Compressed rockwool insulation for outstanding thermal protection (200kg/m3 TWPro / 128kg/m3 KC)
  • Complies with HETAS and CE standards, ensuring safety and reliability
  • Secured safe distance to combustibles (TWPro 50mm / KC 60mm)

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

The Wall Sleeve 45° Adjustable (Ø 100mm) is specifically engineered to ensure the safe passage of your chimney flue through external walls. Ideal for use with solid fuel and gas/oil appliances such as woodstoves, gas coal-effect fires, as well as oil and gas boilers, this robust sleeve is built to last. Constructed with an outer skin of 304-grade stainless steel and an inner skin of 316-grade stainless steel, each with a 0.4mm thickness, it offers exceptional durability.

Additionally, the sleeve includes compressed rockwool insulation with a density of 200kg/m3 TWPro / 128Kg/m3 for top-notch thermal protection. Designed for convenience, the pre-cut 45° angle of the sleeve can be manually adjusted to fit your specific installation needs, and the gap between the flue and sleeve can be filled with rockwool for added security. The product also ensures a safe distance from combustible materials, meeting all HETAS and CE approval standards.

SKU: 15-100-100

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.

Technical Specifications
Model15-100-100
SizeØ 100 mm
MaterialsInner: 316L Stainless Steel (0.4mm); Outer: 304 Stainless Steel (0.4mm)
InsulationCompressed Rockwool, 200kg/m3 (TWPro) / 128kg/m3 (KC)
AnglePre-cut 45° adjustable
ApprovalsHETAS, CE
Safe DistanceTWPro: 50mm; KC: 60mm
• Ensure the wall sleeve is installed by a qualified professional following manufacturer guidelines • Adjust the pre-cut 45° angle to align perfectly with the wall opening, minimising the gap between the flue and sleeve • Fill the gap with high-density rockwool insulation for enhanced thermal protection and safety • Maintain required safe distances from combustible materials (TWPro: 50mm / KC: 60mm) as per product specifications • Regularly inspect the installation to confirm that all components remain securely in position • When in doubt, reference the installation manual or consult our support team to prevent any potential installation issues

This sleeve is suitable for use with solid fuel and gas/oil appliances, including woodstoves, gas coal-effect fires, oil boilers, and gas boilers.

The sleeve features an outer skin made of 304-grade stainless steel and an inner skin made of 316-grade stainless steel, both 0.4mm thick. It is also insulated with compressed rockwool.

The 45° angle sleeve can be manually extended within the wall, making it highly adaptable to various installation requirements.

Yes, the TWPro Wall Sleeve 45° Adjustable is HETAS approved and CE marked, ensuring it meets the highest safety standards.

The safe distance to combustibles is 50mm for TWPro and 60mm for KC, as specified in the product's guidelines.

TWPro Twin Wall Insulated Chimney parts are secured together using a Locking Band, ensuring a stable and secure installation.

Yes, the gap can be filled with rockwool for additional insulation and safety.

 

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