The AE-Ti heat pump gets electrical power from
an external source and provides a dual digital thermostat
control system for pool/spa combinations or preheat
convenience.
This heat pump is specifically designed for heating
fresh water swimming pools and spas.

A unique device, in excellent condition, for economically maintaining the temperature of the water in the pool. Only worked for a year. At a cost of 7500 euros, I will sell it for only 1000 euros!