45° Wall Sleeve to safely line the passage through a wall at 45 degrees. Positioned in a cavity wall, this sleeve protects the twin wall piping in the wall passage when the flue system passes to the outside wall. The gap between the flue and the Wall Sleeve can be filled with rockwool or left clear. When going through the wall at 45 degrees, you will have to taper-cut the sleeve so that it fits flush into the wall. It can be cut using a grinder or a hacksaw.
Wall Sleeves are only available in stainless as they are hidden from view. The space between the twin wall flue and the wall sleeve must be maintained but can be finished either end with Shieldmaster Finishing Plates (listed separately).
Shieldmaster twin wall flue is CE approved for use in the UK, designation number EN:1856-1 T450 N1 D Vm L50050 G60.
