If you are confused about purchasing a thermostat, you can see the alternatives available around. You will find wonderful programmable thermostats. On the way home from a trip, you can tell the furnace to start warming things up while you are still an hour away, making the home perfectly comfortable when you arrive. High-end systems can also send you diagnostic information at the end of each day to allow you to keep track of the performance of your unit and spot any issues before they become major problems. Programming is definitely awesome an alternative but it comes with one major shortcoming and that is adjusting the setting perfectly. Nonetheless, programmable thermostats are the best and few models are available with self learning features. Now what is self learning, it signifies that thermostats will be learning about your liking, when you want the heat to go up or when you will be leaving the gadget alone. It will be maintaining all your information and will be creating its own customized schedule depending upon the information you feed. Thermostat will be regulating your furnace also instructing the air conditioner about what to do what not to. When you are living in an area which is filled with high humidity it is natural that your house will be feeling warm and heated but with best thermostat you can easily control the Air conditioner.