Temperature differential is the difference between the turn-on and turn-off temps on a thermostat, whether heating or cooling. The swing setting, when the t-stat has it, often ranges between one and three degrees. This post discusses Setting Temperature Differential on Honeywell WiFi Thermostat RTH8580WF. Setting Temperature Differential on Honeywell WiFi Thermostat RTH8580WF: Intro Many modern … Continue reading Setting Temperature Differential on Honeywell WiFi Thermostat RTH8580WF