A mini-split doesn’t have ducts that network throughout the entire building. Instead, this ductless device offers cooling and heating in zones. The installation of such A/C units is planned first and then placed in specific locations in the building.
Bill Nye The Science Guy on Heat -- Heat flows. It's the energy of moving molecules. Heat makes things go; it can make things burn. From snow to ice floe, things may look cold, but they've got heat. Conduction, radiation, convection, natural & forced that's how heat gets around.