I have a question for anyone who's a certified HVAC tech..with knowledge of Florida heat n humidity.And please..SERIOUS answers only from people that are qualified.I'm having issues cooling a house..the venting is sized for the unit that is there so I can't go with a bigger unit.There are 3 bedrooms at the end of the hall..would it be possible to put a door in the hallway..then cut off venting to rooms and use 3 small wall units to cool bedrooms.. like the Mitsubishi ones that mount anywhere and have outside units..thoughts?its the main room were having most issues with...30 feet of south facing doors..curtains are helping but not enough..they're tinted too.