Condensing Gas Heating Appliance for heating detached houses, row houses, and apartments, as well as for domestic hot water production. Excellent price-to-quality ratio and the ability to control automation with the new EMS2 outdoor temperature or room temperature-controlled regulators make this unit one of the best in its market segment.
Condensing gas heating boiler for central heating and hot water boiler heating ZSB…
or for central heating and water heating ZWB…
Suitable for low-temperature heating modes and underfloor heating.
Room air-independent device with a closed combustion chamber.
Continuous power adjustment (with flame modulation). Bosch Heatronic 3 control module and error diagnostics module with HT-BUS connection.
Aluminium-silicon alloy heat exchanger.
Automatic ignition.
Ability to regulate and limit heating flow temperature and domestic hot water temperature. Priority switching for hot water.
Ionization flame control.
Integrated automatic air vent valve, manometer, safety valve, temperature limiter,
three-stage circulation pump with air separator, expansion vessel with air separation valve.
| Model | ZSB 14-3CE | ZSB 22-3CE | ZWB 28-3CE |
|---|---|---|---|
| Nominal heating power (40/30 °C) (kW) | 14.2 | 21.8 | 21.8 |
| Minimum heating power (40/30 °C) (kW) | 3.7 | 8.1 | 8.1 |
| Nominal hot water heating power (kW) | 13 | 20.4 | 27.4 |
| Domestic hot water output (kW) | – | – | 13.0 |
| Flue gas connection (mm) | 80/125 | 80/125 | 80/125 |
| Height (mm) | 850 | 850 | 850 |
| Width (mm) | 400 | 400 | 400 |
| Depth (mm) | 370 | 370 | 370 |
