I'm a fan of mini-splits, but If you have five small rooms upstairs, and they wish to do break up heads or quite a few units, I do not get it. Just have a central program. They make central units with inverter compressors (to match the eff of minis). https://housesalegawler45554.aboutyoublog.com/41299587/top-latest-five-house-sale-gawler-south-urban-news