Why are you so set on a mini-split for a 140 sq. ft. room?
Why not just get a cheap-o window air conditioner for each room?
They're only $100 each for a little one.
Lots of people have grown up with window air conditioners in their bed rooms and they show no outward signs of physical or mental damage.
-AC
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I'm not an HVAC technician. In fact, I'm barely even a hacker...
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