SKU: N/A Category:

AC Power Supply – for external heating

39,99 69,99 



Product Highlights:

  • 230V AC power supply
  • Smart heating with intellegent reheating allgorithem for energy saving power supply
  • No specialist required for installation.
  • Reliable heat supply even during bad weather.


Optionional heating support for every photovoltaik water heater

Hot water at all times with an intelligent reheating system. In addition to photovoltaic modules, all fothermo water heaters can also be supplied with power by an external power supply unit. This guarantees hot water even during the darkest rainy days.
Additional heating is OPTIONAL and not necessary.

External Power Supply Unit – Recommendation:

Recommended water heater 10 Liter30 Liter | 80 Liter
model PSU-12PSU-18
max. heating powerW62141
output voltageV1218
max. currentA78.4


Do not use any other external power supply than the one officially sold by fothermo! 
Our power supplies are specially designed for household appliances. If you use another power supply there is a risk of damage and fire. 

Included in the package:

  • Power Supply Unit
  • Cable for AC connection

Additional information

Weight N/A
Dimensions N/A

External Power Supply Unit 60W, External Power Supply Unit 140W