The Schiedel 45° Wall Sleeve for 150mm internal diameter twin wall flue is designed for installations where the chimney passes through a wall at a 45-degree angle. This version is specifically sized for 150mm i/d flue systems and is available for either masonry or timber wall construction.
The 45° format allows the sleeve to correspond with an angled flue route through the wall rather than a perpendicular penetration. This makes the wall construction option an important part of the product selection.
Two versions are listed: Masonry and Timber. The appropriate option should be selected according to the construction of the wall through which the twin wall chimney passes.
The product is associated with Schiedel ICS and ICID twin wall chimney systems. Within the wider ICS Plus system, a lip seal is added to components with a male liner form to create a system designed for condensing gas and oil appliances.
The supplied ICS Plus system information states continuous operating temperatures up to 200°C, short firing temperatures up to 250°C and positive pressure up to 200Pa at the appliance outlet. These figures relate to the associated ICS Plus chimney system rather than the wall sleeve itself.
Key Features
- 45° twin wall sleeve
- 150mm internal flue diameter
- 6-inch internal flue size
- Designed for wall penetrations
- Masonry wall option
- Timber wall option
- Schiedel twin wall accessory
- ICS system compatible
- ICID system listed
Expert Insight
The key specification with this sleeve is the combination of a 45° flue route and the wall construction. Unlike a straight wall penetration, the sleeve is intended to accommodate an angled chimney route, so the masonry or timber version should be selected to suit the construction being passed through.
Suitability
The Schiedel 45° Wall Sleeve is suited to 150mm internal diameter twin wall chimney installations where the flue passes through either a masonry or timber wall at a 45-degree angle.
Installation / Technical Notes
This model is specifically designed for a 45° wall penetration and a 150mm internal diameter flue system. Select either the masonry or timber version according to the wall construction.




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