[xnyan]

Two hose is better but not perfect. The problem is the compressor body is still inside and shedding some of it's heat inside the cooling area. If your need is temporary, the inefficiency is acceptable - otherwise go with a mini split.

[philwelch]

Mini split is better if you can install it and don’t want to install a central AC for whatever reason. I don’t think you can usually install a mini split in a rental though.

Window AC units are preferable to two hose because the compressor side hangs outside the window (and can drip the condensed water) but sometimes you don’t have double hung windows or your landlord doesn’t allow window AC units.