I am in process of building a new home in Central Connecticut. I requested a Carrier Infinity air conditioner and furnace. The builder claims that the Infinity 96 air conditioner is far more efficient and too costly to be practical for the Northeast and is supplying a Carrier Furnace, Model Number: 58MVC080 and air conditioner Model Number 21APA530A003. They did not specify the thermostat.
I liked the idea of a two-stage furnace and two-stage air conditioner. Are those models more practical for the Northeast or should I insist on the Carrier Infinity 96? Also, is the Infinity Control thermostat the best option for those units, or only for the Infinity 96?