Description
Wall Sleeve 45 Degree Adjustable 5″ (125mm) – Convesa KC, HETAS & CE Approved
The Wall Sleeve 45 Degree Adjustable (5 inch/125mm, internal diameter) is designed for use when a twin wall flue pipe passes through a wall at a 45° angle. This sleeve ensures a safe, compliant, and tidy installation.
Why Choose the 45 Degree Wall Sleeve?
HETAS approved and CE marked, this wall sleeve is compatible with Convesa KC twin wall flue systems and compliant with EN1856-1 T600 standards. Suitable for wood, oil, gas, and low sulphur coal appliances. Maintain a 60mm clearance to combustibles for safe installation.
Key Features
45° Wall Penetration: For twin wall flue pipes passing through walls at 45°
Adjustable Fit: Ensures a neat, compliant installation
Certified & Approved: HETAS approved, CE marked, EN1856-1 compliant
System Compatibility: For use with Convesa KC Twin Wall
Safe Installation: Maintain 60mm clearance to combustibles
Product Specifications
Type: Wall Sleeve 45 Degree Adjustable
Internal Diameter: 5 inch (125mm)
Outer Material: 304 Stainless Steel, 0.4mm
Inner Material: 316L Stainless Steel, 0.4mm
Approvals: HETAS, CE, EN1856-1 T600 N1 D V2 L50040 G60
Fuels: Wood, oil, gas, low sulphur coal
Additional Information
FREE Delivery: Available on orders over £100. Click here to check delivery information for your area.
For more wall sleeves and twin wall flue accessories, visit modernstoves.co.uk.
Need help or advice? Ring 0161 439 1400.




