A/c run time
Have multilevel house in MN. NG forced air heat and 3 ton a/c. No south/west shade and a/c runs a lot. Kitchen is on west side and is warm during afternoons with cooking chores after work. Wifey loves cold so a/c never shuts off. Would a properly sized new higher eff unit run any less? Or would it run the same but only use less power? Our current unit runs 80% of the time at XX watts. A new unit would provide the same cooling but consume less power? Would the vent temps be the same?