The biggest difference with a smart thermostat is how it connects to other sources of information for automation. As Adina ...

That makes it much easier to mix old school with new school if ... having made the first consumer-facing thermostat back in 1906. Today, the brand leans into its heritage by offering tons of ...

Most nonconnected programmable thermostats will work with as few as two low-voltage wires (common in older heating systems), but newer thermostats often require a common wire, a C-wire.

The biggest difference is that smart thermostats make this much easier. With old programmable thermostats, you're mostly stuck doing programming with the thermostats' manual controls. Smart ...