Disagree all you want. You are incorrect. This has been batted around on this and other forums for years. The only difference the lower rated thermostat make is, it opens earlier. That's all.
If you insist. I will keep the 180, after all it is less work to keep it in there. I'll adjust the controller to 198 or so. But I have to ask... why do they make 160's if the temp won't go down that far?
