Condensing gas heating appliance for heating detached houses, row house units, and apartments, as well as for domestic hot water preparation. Good price-to-quality ratio and the possibility to control automation with new EMS2 outdoor temperature or room temperature controllers make this device 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 (flame modulation). Bosch Heatronic 3 control module and error diagnostics module with HT-BUS connection.
Aluminum-silicon alloy heat exchanger.
Automatic ignition.
Possibility to regulate and limit heating flow temperature and hot water temperature. Priority switch for hot water.
Ionization flame control.
Integrated automatic air vent valve, pressure gauge, 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) | 14.2 kW | 21.8 kW | 21.8 kW |
| Minimum heating power (40/30 °C) | 3.7 kW | 8.1 kW | 8.1 kW |
| Nominal heating power for water heating | 13 kW | 20.4 kW | 27.4 kW |
| Domestic hot water output | – | – | 13.0 kW |
| 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 |
