I'm looking to have an AC unit put in to my house.... Currently I have a Bryant 94%AFUE 2-stage variable speed furnace in my attic (really a third floor), in a horizontal configuration. The furnace supplies the third and second floor, which totals around 3200sqf. These were my options quoted:
Bryant 178BNA048 4ton 16.4 2 stage with a slab coil.
Rheem RARL-049JEC 4 ton 2 stage with Carrier 4 ton cased coil.
The Rheem is about 10-15% less.