3/21 21 kW
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| Weight: | 7 kg |
| Equipment: | Display |
| Description: | Type of heating boiler: gas, max. thermal power: 23 kW, number of circuits: double-circuit, placement: wall-mounted, fuel: natural gas, type of combustion chamber: closed, type of power supply: single-phase, control: electric |
| Peculiarities: | Connector for external control, thermometer |
| Control: | Electronic |
| Dimensions WxHxD: | 220x380x140 mm |
| Installation: | Wall-mounted |
| Efficiency: | 98 % |
| Mains voltage: | Single-phase/three-phase |
| Thermal power: | 7 - 21 kW |
| Heated area: | 420 sq.m |
| Maximum current 3F: | 32 A |
| Power steps: | 3 |
| Heating circuit connection: | 1¼ |
| Number of circuits: | Single-loop |
| Type of heating boiler: | Electric, electrode |