So I have been reading on here a lot about the mini splits.. I will be adding to my garage this coming year. My question is should I get 2 units or 1 unit 2 heads... I have a 30 x 50 garage back is walled off for a 11 x 30 ft room the rest is open. the calculator s say a 36k unit for 30 x 50 with all info put into to calculator... JUst dont know if I should get 2 one 9k unit for room and one 24 k unit for rest of garage One unit 36k with a 9 head unit for room and 24k head for open garage...Any ideas on which would be better....