I typically recommend that gas/oil furnaces be serviced annually and electric furnaces serviced every few years. I inspected a flip home today with a new furnace in it. I am wondering if it is wise to put any sort of a disclaimer in my report when I come across new furnace units. Maybe something about having it evaluated by an HVAC technician to insure it was done properly. I get better everyday but I will readily admit I am not as knowledgeable as an HVAC technician.
It appeared to be mostly decent except for the filter just being set on top of the unit.