Joshua Jamerson is the The Wall Street Journal's deputy politics editor, based in Washington.

If you live in a rental, you can save cash with a smart thermostat but there are a few things you should know about landlords ...

The best walkthroughs, a quick photo of your wire layout and most homeowners will be able to install their smart thermostats ...

Simple energy guidelines can get anyone started with a smart thermostat: In the cold months, set it to at most 68 degrees ...