Tired of coming home to a house that's cold at the end of a long day? Dread getting out of bed just to get up and kick the heater on? Then you're a candidate to install a programmable thermostat on your heater. Most of these thermostats allow you to program chances in temperature for settings such as home, away, day and night. If your family has a routine, you can program your thermostat to cool and heat as needed.