I have two rooms upstairs and there is no central HVAC yet so I have redneck engineered a way to get it cool. In the crawlspaces I have installed a couple of 10" ducts with a 760CFM hydroponics fan to draw the air and 14" vents in the walls. Now as you can see in th drawing I have one pulling air from the room with no AC to the cooled room and another pulling from the cooled room to the noncooled room. Each room has a temp sensor and I use a Harmony hub to control the AC based on temp in both rooms. currently I set it to run if the temp is above 73.5 and turn off when both are at 72.5 but the cooled room cools off fast (naturally) so I set a stop point of 71 degrees so the AC turns off no matter what the temp in the non cooled room is.
Now the question. is the flow of air I have ideal or would I be better moving all of the hotter air from the room without the AC to the room with and letting the cool air flow to the non cooled room thru the doorway or should I pull cold air from the cool room to the hot room? Or should I leave it as I have it? I can keep it within about 1.5-2 degrees as is but I know in the summer it will be harder to control the temp.
Thanks for any advice