Today when it comes to controlling your heating and air conditioning system things are different than what they once were. When it comes to thermostats, mostly everyone today has a smart thermostat. There are really no more digital thermostats and standard dial thermostats. Yes they still sell them, but they are not something that folks go for. When getting a new thermostat for a brand new central heating and air conditioning system everyone seems to go with a smart thermostat. I did myself. I have to say that at first I really did not like the smart thermostat but after a while I found that it was the best thing to ever happen for central heating and air conditioning systems. You can save so much money in energy costs by using the smart thermostat and also it is very convenient. Being able to turn on and turn off your central heating and air conditioning system through an app on your cell phone from virtually anywhere in the world is real amazing heating and air conditioning technology. Heat and a/c technology has evolved a whole lot in the last 20 years. And smart thermostats are just one of the many great things that heating and air conditioning technology has brought to the world. I would never want to get rid of my smart thermostat for anything in the whole wide world. Once you try a smart thermostat you will never go back to your old regular thermostats. It is really that great to tell you the truth.