Operating instructions for the EHEIM thermoControl 325, 377, and 375 aquarium heaters, covering safety, installation, temperature settings, and system messages.
This manual provides operating instructions for the EHEIM thermoControl 325, 377, and 375 aquarium heaters, which are integrated into the professional external aquarium filters. The device measures water temperature and regulates it to a set target temperature using an electronic heating system. It is designed for use in freshwater aquariums only and must be operated in an upright position.
| Power consumption | 210 W |
|---|---|
| Temperature setting range | 18° – 34°C |
| Factory setting of target temperature | 24°C / 75°F |
| Switching hysteresis | ±1°C |
The maximum setting for the target temperature is 34°C (93°F).
No, the heater cannot cool the water; it is only designed for heating.
It may take up to 24 hours to reach the set temperature depending on the water volume.