Also is there anything I can do about the heat without running the AC? I try to leave the windows open, but they’re all on one side and don’t seem to allow for much airflow that way.
Open only two windows that are as far apart as possible. Get a large fan and point it towards one of the windows (i.e. so it blows air out) at about 2 meters distance. Leave it turned on during the night to create a cold draft that goes through your apartment.
How much did it cost to get all the parts?