Avensys, that seems to be the same thing I have observed. The heater uses more than 3.3 kW possible 4 kW.
I have a 16 amps Charge Amps cable that can be set to 6, 10 or 16 amps. When the heater is on, at the 16 amps setting, the car pulls 3300 W from the wall socket but seems to use some...