In the video (linked ☝) the installer operates his split unit directly from solar. I get the impression that he installs slpit systems professionally, and that he places a high value on the airspool because he's installing it in his own home. He said that this particular unit was the most well engineered DIY unit that has has co.e across thus far.
I'm just getting into the research of split units, but I'm familiar enough with solar power systems to see the pros.
