[BrRsn]

My window setup is temporary and it didn't require screws or nails, it all just kinda fell into place and its held in by its own weight -- i spent a total of $15 on parts at home depot to mount it, and they cut everything to size for me
Evaporative air conditioner is one that evaporates water to cool the air it pushes out, which obviously doesn't work as well in humid environments (i.e. vancouver)


edit:

Oh yeah, if you get a portable air conditioner, given our humid environment I imagine its reservoir won't stay empty for long, you'd probably half to empty it out 2x a day if you're using it continuously