ducted

I’d like to use ducted mini-split HVACs for a new home and i have some questions. - Do ducted systems come in a wall unit or only ceiling units? - I have about 12" of space between the ceiling and the roof. Is this enough space for a ducted ceiling unit? What would be the minimum space...

I'm interested in installing a ducted mini split system, likely a Mitsubishi Mr. Slim, and I had a question in regards to sizing. First, let me state that I live in Albany, NY and my outside design temperature is negative 1. The MXZ-3A30NA unit is normally rated at 28,600 btu for heating at...