The Bryant Preferred series thermostat has a wide range of programmable features for your indoor comfort (see the bullets below). In many ways, this thermostat is similar to the Honeywell VisionPRO and IAQ thermostats. However it is unique in that it only requires two wires to operate all of the features. This is nice for those of you in an older home where often two wires are all you have; you won’t, for example, be left without the “fan on” option. This is one of Bryant’s finest thermostats.