yes but if the op doesn't have an ac already, could be renting, which severely limits what kind of ac you can get.

But yes split units are of course far better efficiency. I been eyeing up next years upgrade to an external unit with heat pump and 5 internal units for the 3 bedrooms, lounge and kitchen. But given how expensive the unit is i don't even know how much would it cost to install something like that. Lucky for me the house is arranged so that only one of the internal units would be a complete pain in the arse to install. So hopefully its something I can afford to do for next summer... fingers crossed