Would anyone be able to help me understand carrier staging, and possibly tweak the settings. Our house is an ICF house, with a 3 ton Carrier infinity geo unit. It seems in heat mode to favor stage 2 instead of gradually raising the temp, making for complaints from the family. I can gather temperatures/runtimes etc to help sort it out, but I don't see anything in the thermostat related to staging decisions. The contractor tells me that if I switch to a standard thermostat I'll loose "all the smart features" but he isn't able to articulate what those are.