Ice knocked out power lines in Virginia ... Lower your thermostat (utilities recommend the mid 60s), layer up in warm clothes, and pile on traditional no-tech blankets. Plus, you should follow ...

Indicates, when using a 2-wire setup, whether or not the thermostat draws power through the wires in order to charge the internal battery, which may cause some HVAC systems to operate ...

Of course, thermostats, and even smart thermostats don't need a ton of power to operate. There are no ... old thermostat that you're replacing. This helps you know where to run the wires on ...