The GEFEST GFS ZK 25M and 30M portal extension is a cast iron component designed to extend the portal of the GEFEST GFS ZK 25M and GFS ZK 30M wood-burning sauna stoves. It is used when the standard portal length is not sufficient due to the thickness of the wall.
The extension length is 100 mm.
The extension is made of cast iron. During installation, the joints must be properly sealed in accordance with the manufacturer’s installation requirements.
If a longer portal is required and several extension elements are to be used, the specific installation conditions must be assessed and fastening elements of the appropriate length must be selected in accordance with the manufacturer’s instructions.
