6. Consider Whether Select Ultra-High Efficiency
Do you need an ultra-high-efficiency air conditioner? Not necessarily.
Of course, for the sake of the environmentโfrom energy usage to greenhouse gas emissionsโthe higher the efficiency the better.
But, in terms of dollars, the savings compared to the premium you will pay may not pencil out for you, particularly if you live in a climate that requires little cooling during the year or if your home isnโt tightly insulated.