In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Difference between 2-stage and 1-stage A/C and furnace when both have a variable speed fan?
I'm having a really hard time understanding the effective difference in comfort between having a 2-stage A/C or furnace vs. a 1-stage, when both setups have a variable speed fan/air handler. Maybe I'm butchering the nomenclature, but I can't find anything on it.
My impression is that having a 1-stage system with a variable fan is between a 2-stage and a 1-stage with a fixed fan. Is that right? Does it bridge the gap in humidity removal during the summer? I live in the Chicago area and the summers can get muggy, but if there's not a big difference in the humidity control, I see no reason to go for the 2-stage A/C given the price increase (~$1600).
My HVAC guy who gave me the quotes said that there isn't a big difference between the furnace options, but people really comment on the A/C due to the humidity control.