The Nest thermostat, to put it mildly, is a piece of shit! Save your money and wait for some company that knows what they are doing to come out with a better unit. I’ve never more sad as when I came to contact with the morons that man and staff this God forsaken company. If you have a problem, there is no response via email and the wait times for their help line is always a half an hour or more.
Just let me be clear – buying the NEST is going the be the worst decision of your life!