I'm about to make a final decision on a new system. Current system is 45+ years old. I had many estimates and two contractors stood out above the others.
One has comfortmaker 92% VS (VS90) and 14 SEER w/ r410a (SX 2400).
The other has ruud 92% 2-stage (UGRK) and 14 SEER w/ r22 (UAPC).
Both did load calcs and are recommending the same sizes. The first is four hundred more than the second. The first also includes a 5 year service plan. I'm leaning slightly to the first, but would be comfortable with either.
Any opinions that might help me choose?