Browse Forums Building A New House Re: Boutique Upgrade costs 8Sep 11, 2020 6:21 pm Hi Chezhianrv, I am pretty much sold on evaporative cooling and thats why only looking to upgrade to a 5 star unit along with 2 zones. I have had good feedback from people who are currently using evap cooling. 10 15745 I am not sure whether Perth has its own way of doing things in regards to this. Most of Perth has class A (sandy soil), except for some areas near rivers or hills. 2 13099 |