Filtrete Wi-Fi Programmable Thermostat
The Filtrete 3M Radio Thermostat is one of the lowest cost wi-fi thermostats with mass market appeal selling at under $100. There is an iPhone and a Droid app for this thermostat. Like the Ecobee thermostats, a common wire ("C") wire will be needed to supply power. Also like the Ecobee thermostat, the Filtrete 3M Radio Thermostat can be programmed for vacation and holiday schedules. Radio Thermostat sells other thermostats as well, but the 3M partnership will allow many homeowners to get a wifi thermostat.