For whole house on auto xfer switch I'd def get the Cummins
Any briggs or honda 6kw portable with a tri fuel kit will do what you need to do (minus central AC of course) -I suggest using an interlock kit to avoid problems in the heat of the moment
Any briggs or honda 6kw portable with a tri fuel kit will do what you need to do (minus central AC of course) -I suggest using an interlock kit to avoid problems in the heat of the moment