I am from an SE-Asian country, AC usage has increased a lot, and, also we are hell bent on devastating every green that is available, as much as possible.
Portable one's heat dispenser is inside your room, AC unit's outside. But the issue being, as it disperses the heat outside, it's probably still increasing the ambient heat?
Dehumidifier works pretty well, provided it's built in to the AC unit, portable one's will increase the room temp: https://www.youtube.com/watch?v=j_QfX0SYCE8
Portable one's heat dispenser is inside your room, AC unit's outside. But the issue being, as it disperses the heat outside, it's probably still increasing the ambient heat?