TECHNICAL DATA SHEET
Sylber Condensing Boiler Model Style B 25 kW Complete with Flue Gas Exhaust Kit
Heating energy efficiency Class A
XL profile sanitary energy efficiency Class A
Seasonal heating efficiency % 91
Nominal heat output for heating / domestic hot water kW 25 / 25
Nominal heating power (80 - 60 °C) kW 24.18
Nominal heating power (50 - 30 °C) kW 25.88
Reduced thermal output heating / sanitary kW 5 / 5
Efficiency at Pn max - min (80 - 60 °C) % 96.7 - 95.8
Efficiency at partial load 30% (47°C return) % 99.8
Efficiency at Pn max - min (50 - 30 °C) % 103.5 - 107.2
Efficiency at partial load 30% (30°C return) % 107.9
NOx Class 5 5
Supply voltage / frequency Volt / Hz 230 / 50
Maximum electric heating power (circulator excluded) 43 Watt
Degree of electrical protection IP X5D
Boiler dimensions (HxWxD) mm 715 x 405 x 248
Net weight of boiler + box 27 kg
STYLE B 
With Style B it is possible to line the chimneys thanks to the dedicated flue system.
The main flue pipes are available in the flue section of this brochure, while the boiler manuals provide adjustment instructions and (maximum length of ducting systems).
If the boiler is connected to a ducted system, the system itself must be class W and have a device at its base for the collection and disposal of condensation, rainwater and/or snow (in the event that the flue terminal is not installed). The waste water disposal must be treated according to the
current regulations.
Even when connecting to a chimney or vertical flue, it is recommended to provide a suitable condensate disposal system.
If installing a condensate booster pump, check the technical data relating to the flow rate provided by the manufacturer to ensure its correct functioning.
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