7-day thermostat, 1 program, for each day of the week, illuminated display, permanent and temporary override, set point saved on energy loss, single stage heat and cool, heat and cool, central air, furnace , hot air, heat pump with and without auxiliary heat, hot water and steam or gravity, 750 millivolts, 24 V or 750 millivites gas fireplaces. Programmable for 7 days