their pcbs are unstable, wattage is off.
by the current prototype, mini rig can't be produced, since it will use 5KW, that's over power supply switch limit in eu houses (3.5KW maximum per one fuse).
Can this be circumvented by using 2 electric sockets from 2 different rooms? I mean this way it should remain under that level isnt it? But im not sure if such thing is possible.
If those sockets happened to be on the same main phase, theoretically yes. But thats most likely not legal and is against any good electronics usage behaviour. You could hire an electrician to hook up a stronger supply line for your mini rig. 25Amps fuse on 230V will do.