With many new programmable thermostats, you don’t have to be at home to change the temperature. Apps like this one from Nest let you connect to your thermostat from a smartphone.

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With many new programmable thermostats, you don’t have to be at home to change the temperature. Apps like this one from Nest let you connect to your thermostat from a smartphone.

With many new programmable thermostats, you don’t have to be at home to change the temperature. Apps like this one from Nest let you connect to your thermostat from a smartphone.