Thanks for letting us know what you think about roof airs . You could has stated that you don't care for the looks, without saying that everyone of us that has roof airs, has a bad looking bus....
? what kind of bus? Using 3 mini split on new project. super efficient only about 1500$ for 30,000 btu heating and air.
After much consideration, I took it to a local commercial refrigeration outfit, and asked their opinion. They pulled a vacuum on the system, deemed it worthy, and charged it with "Freeze 12". It has been working like a champ ever since. Dennis
There are a lot of factors here, but these items may help you with some of the details.