Programmable thermostats give you the option of setting a schedule for your heating and cooling system. You can program the thermostat to change at any date or time of the week, so you don’t have to remember to change it. If at any point you don’t want the schedule, you can just use these thermostats manually as well. All programmable thermostats need to be programmed manually and familiarizing yourself with the homeowner’s manual and programming the thermostat yourself is essential to ensuring you receive the greatest energy savings. You can build energy savings into your program by setting the temperature lower during the day when you aren’t home or late at night when you are sleeping. Once you program it, you won’t have to adjust your thermostat again!