We purchased the Emerson 1F83C-11PR Conventional (1H/1C) Programmable Thermostat because it was time to make our lives more comfortable now that winter is upon us. As retirees we were tired of setting and adjusting our old, non-programmable thermostat every time we got up in the morning, during the day and at night. Now "Emmy" [as we call our thermostat] takes care of these chores and always, like clockwork, keeps our home cozy all the time. We set Emmy to start the day at 6:30 am at 72 degrees (F), take it to 70 degrees (F) at 10:00 am, and finally to 68 degrees (F) at 11:00 pm. If we need to raise or lower the temperature anytime of the day we use the "temporary adjustment feature" without having to reconfigure the entire weekly schedule. The installation was straight forward, not needing an expensive "Technician" and the cost of the unit, reasonable. We are really content with Emmy and highly recommend it as it serves our needs to a "T".