I wonder if some of the confusion stems from a seemingly common conflation of heats pumps and mini-splits. Mini-splits are not heat pumps per se though most of

I wonder if some of the confusion stems from a seemingly common conflation of heats pumps and mini-splits. Mini-splits are not heat pumps per se though most of the former tend to be powered by the latter. And all other things being equal, mini-splits tend to be more efficient than centralized ducted systems since you're heating/cooling a smaller volume. But I agree that it's not clear the author understood the difference.