The answer is that in the middle of summer you will appreciate the aircon in the bedrooms. We tried ceiling fans and it was hot at night.. I have just had it installed in both bedrooms at a cost of 1800 euros which I think is the same price as polaris world .
we used Mike English and he seems to be very thorough.
mickenglish226@yahoo.com
Depending on the pre installation the units could be more or less.
Richard