This is the Floorizwarm Thermostat. It is a 24 hour, 7-day programmable unit that is the only visible part of the system in the room. It measures 2-3/4" x 4-3/4" and is mounted in a single gang deep box on the wall. Power is run from a 120 volt, 15-20 amp circuit to the thermostat. Then another line (the "load line") runs from the thermostat to the control box (above). A floor temperature sensor is installed and is run to the thermostat to control floor temperature.

These thermostats also have an optional "dial-in" activation control to switch the system to/from "Vacation Mode" with a simple phone call home.