Standards, certification and technical characteristics (continuation)
Other technical characteristics
21/125 SF 21/135 SF 21/125 DF
Minimum draught needed to obtain the rated calorific
output
12 Pa 12 Pa 10.9 Pa
Weight-flow ratio of smokes 18.2 g/s 17,9g/s 33.2 g/s
Average smoke temperature 384°C 366°C 375°C
Minimum diameter of the duct for the intake of outside
combustion air
200cm
2
200cm
2
200cm
2
Optimum output range for usage 11 - 23 kW 11 - 21 kW 14 - 27 kW
Range of wood consumption per hour recommended at
12% humidity
3.2 - 6.6 kg 3.2 - 6.2 kg 4.3 - 8.3 kg
Maximum limit for consumption
of wood per hour to avoid overheating the system
8.3 kg/h 7.6 kg/h 10.1 kg/h
Maximum length of logs
in vertical position
50 cm 33 cm -
Maximum length of logs
in horizontal position
100 cm 100 cm 100 cm
System mass 305 kg 286 kg 310 kg
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