Condensing gas heating appliance for heating detached houses, row house units, and apartments, as well as for domestic hot water preparation. The excellent price-to-quality ratio combined with the ability to control automation using the new EMS2 outdoor or room temperature controllers makes this device one of the best in its market segment.
Condensing gas heating boiler for central heating and hot water boiler heating — ZSB models,
or for central heating and water heating — ZWB models.
Suitable for low-temperature heating regimes and underfloor heating.
Room-air independent device with a closed combustion chamber.
Continuous power adjustment via flame modulation. Bosch Heatronic 3 control module and error diagnostics module with HT-BUS connection.
Aluminum-silicon alloy heat exchanger.
Automatic ignition.
Ability to regulate and limit heating flow temperature and domestic hot water temperature. Priority switching for domestic 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 |
