A portable, monoblock air conditioner including an evaporator positioned over a condenser, the condenser including heat transfer fins, and a partition positioned between the evaporator and the condenser, the partition formed with openings arranged for condensate to flow from the evaporator over the heat transfer fins of the condenser, wherein there are more than one of the openings over each heat transfer fin. Adjacent rows of openings over the heat transfer fins may be staggered with respect to each other. The heat transfer fins may have a hydrophilic coating.