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Wall Sleeve 45° Adjustable - Ø 80 (15-80-100)

Discover the Adjustable Wall Sleeve 45° - Ø 80mm at National Flues. As a leading UK supplier of flues, fireplaces, and chimney accessories, National Flues delivers top-quality products engineered for both solid fuel and gas/oil appliances. This premium wall sleeve combines rugged stainless steel construction with high-density rockwool insulation, ensuring superior safety, energy efficiency, and compliance with rigorous HETAS and CE standards.
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£21.49
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At a Glance

  • 45° Adjustable design for varied wall thicknesses
  • Constructed with dual-grade stainless steel (304 outer, 316L inner)
  • High-density rockwool insulation for optimal thermal performance
  • HETAS Approved and CE marked for safety compliance
  • Suitable for solid fuel, oil, and gas appliances

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]

APPLICATION: Perfect for use with various solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, oil and gas boilers, and additional solid fuel devices. CONSTRUCTION: The Adjustable Wall Sleeve is expertly manufactured with an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, each 0.4mm thick. Insulated with high-density compressed rockwool (200kg/m³ for TWPro and 128kg/m³), it ensures optimal performance.

The distance to combustibles is 50mm for TWPro and 60mm for KC configurations. APPROVALS: This product is TWPro HETAS Approved and CE marked, carrying multiple designation numbers: TWPro EN1856-1 T600 N1 W V2 L50040 G50, TWPro EN1856-1 T200 W V2 L50040 O20, KC EN1856-1 T600 N1 W V2 L50040 G60, KC EN1856-1 T200 W V2 L50040 O20. INSTALLATION: Securely connect all TWPro Twin Wall Insulated Chimney parts using a Locking Band.

Always maintain the required distance from the outside of the flue to any combustible material such as wood or plasterboard.

SKU: 15-80-100

Technical Specifications
Product NameWall Sleeve 45u00b0 Adjustable - u00d8 80mm
Inner Material316L Stainless Steel - 0.40mm thick
Outer Material304 Stainless Steel - 0.40mm thick
InsulationHigh-density compressed rockwool (200kg/mu00b3 for TWPro and 128kg/mu00b3 for KC)
Adjustable Angle45u00b0 pre-cut with manual adjustability
Appliance CompatibilityWoodstoves, gas coal effect fires, oil and gas boilers, and more
ApprovalsTWPro HETAS Approved and CE marked (EN1856-1 T600 N1 W V2 L50040 G50/T200 W V2 L50040 O20 for TWPro; EN1856-1 T600 N1 W V2 L50040 G60/T200 W V2 L50040 O20 for KC)
Clearance To Combustibles50mm for TWPro configuration / 60mm for KC configuration
• Ensure that the wall sleeve is installed by following the detailed TWPro or KC guidelines. • Always secure the chimney components using the recommended Locking Band. • Maintain the necessary distance from combustible materials (50mm for TWPro, 60mm for KC) to prevent any fire risk. • Consider filling the gap between the flue and the wall sleeve with rockwool insulation for enhanced thermal efficiency. • It is advisable to consult with or hire a professional installer for optimal safety and performance.

The Adjustable Wall Sleeve 45° - Ø 80mm is suitable for solid fuel appliances, gas/oil appliances, including woodstoves, gas coal effect fires, and oil and gas boilers.

It features an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, each 0.4mm thick, with a high-density rockwool insulation between layers.

Yes, the Adjustable Wall Sleeve 45° - Ø 80mm is HETAS Approved and CE marked, ensuring it meets high standards for safety and performance.

For TWPro, the required distance to combustibles is 50mm, while for KC, it is 60mm.

Yes, it is designed for use with both solid fuel and gas/oil appliances.

No, the installation involves securing the twin wall insulated chimney parts with a Locking Band and maintaining the required distance from combustibles.

It uses high-density compressed rockwool insulation, providing excellent thermal resistance and safety.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, April 30th. 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 on a retail basis. Give us a call if you find it cheaper and want to buy from us.

Read our review in our Wall Sleeve 45° Adjustable - Ø 80 buyers guide

Order now to secure unmatched durability and performance for your flue system.

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