I must have dreamed this. I thot I read in here somewhere about a smaller than normal a/h for tight places. I even thot I remembered the number 16164. I called the hvac business and they didn't know anything about it. I wanted the physical dimensions to know if I have to move a closet wall. I sure thot I read about this somewhere. If there is such a thing, could it be used for a 3 ton ,12 seer ? Thanks for listening.