My wife and I bought another house for vacation rentals, and right now it has electric baseboard heat and no A/C. We're considering the best approach to both add A/C and improve heating efficiency - and do so least expensively since the house is only occupied an average of 3 days a week.
One of the options would be a mini-split solution, but I have concerns about the air handler units and their locations. Outside walls are best I understand, but almost universally, there is a window occupying the majority of any outside wall where a unit would be needed - and there isn't sufficient room over the window to mount an air handler.
So finally, I get to the question (Whew - we thought you'd never get to the point Tom!):
Although most mini-splitair handlers are mounted a few inches down from the ceiling, can a mini-split air handler be mounted mid-wall, i.e. under the window like a PTAC unit is placed? My guess is the answer is no because of the air discharge vent location across the bottom of the unit, but maybe I'm wrong. If there are any brands that are well suited for this type of mounting, can I get a recommendation? That would help me figure out which local contractors to invite...
Constructive comments only please!