A) it would be 4 ductless wall or ceiling units. I have one in my 16x24 shed and it is not enough for Texas heat.
B) I agree with you and will upgrade it to 2"
C) they are insulated.
I'm having a 30x60 garage built that will be spray foamed and drywalled. I'm wondering if I go mini split 4 zones (wall mounted or cartridge) or central air. If mini spilt thinking of ducted and run metal tube down the middle with vents every few feet. Ductless, wall mounted 2 every 20 ft? I'm...