The Schiedel Ventilated Square Firestop 2pc for ICS twin wall flue is a two-piece firestop component available for 130mm (5″) and 150mm (6″) internal diameter chimney systems. Its square, ventilated format is designed for use as part of the firestop arrangement around a corresponding Schiedel twin wall flue.
The two-piece construction is an important feature of this version, distinguishing it from single-piece accessories within the wider chimney system. The correct firestop should be selected according to the internal diameter of the flue being installed.
Schiedel ICS is a twin wall insulated chimney system intended for open and closed stoves, open fires, and residential or small commercial multi-fuel appliances. The system is rated for continuous operating temperatures of up to 450°C, with short firing temperatures up to 550°C.
The associated ICS chimney system uses a push-fit jointing arrangement secured by locking bands. Its construction includes laser-welded 316L stainless steel inner liners, a 304 stainless steel outer case and a 25mm Superwool insulation blanket. These specifications relate to the wider ICS chimney system rather than the square firestop itself.
The system jointing arrangement is designed to increase rigidity, allow condensate to drain within the flue and incorporate a capillary break to help prevent moisture being drawn through the joint. Continuous insulation along the sleeve joint also helps avoid interruptions in the insulated chimney construction.
Key Features
- Ventilated square firestop
- Two-piece construction
- Schiedel ICS twin wall component
- 130mm internal diameter option
- 150mm internal diameter option
- 5-inch system option
- 6-inch system option
- Twin wall chimney accessory
- ICS continuous rating 450°C
- Short firing up to 550°C
- Associated with insulated flue systems
Expert Insight
The key distinctions with this component are its square format and two-piece construction. When specifying the firestop, the diameter should be matched directly to the corresponding 130mm or 150mm twin wall chimney system rather than selecting by the external size of the fitting.
Suitability
The Schiedel Ventilated Square Firestop 2pc is suited to twin wall chimney installations requiring a square, ventilated two-piece firestop component for either a 130mm or 150mm internal diameter Schiedel system.
Installation / Technical Notes
This component is supplied as a two-piece ventilated square firestop. Select either the 130mm (5″) or 150mm (6″) version to correspond with the internal diameter of the twin wall flue system being installed.
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