Design
| Type |
Tankless (instantaneous) |
| Heater location |
Indoor |
| Solar batteries support |
N |
| Input connection type |
G 1/2 |
| Boiler system |
Solo boiler system |
| Fuel type |
Electric |
Performance
| Minimum operating pressure |
0.25 bar |
| Maximum power |
21000 W |
| Adjustable thermostat |
Y |
| Thermostat range |
30 - 60 °C |
| Domestic Hot Water (DHW) flow |
3 - 11.6 l/min |
| Maximum operating pressure |
10 bar |
| Temperature (max) |
60 °C |
Ergonomics
| Built-in display |
N |
| Electronic power control |
Y |
Siemens DE21401. Type: Tankless (instantaneous), Boiler system: Solo boiler system, Heater location: Indoor. Domestic Hot Water (DHW) flow: 3 - 11.6, Thermostat range: 30 - 60 °C. Dimensions (WxDxH): 236 x 124 x 472 mm