Smart thermostat and a thermostat adapter with integrated safety interlock for installation and diagnostics of an in-floor heating system

A thermostat for use with at least one in-floor heating element, the thermostat comprising:

• a housing;
• a heating element control circuit disposed within the housing, the heating element control circuit to cause an in-floor heating element to electrically couple to an alternating current power source;
• a first power measurement circuit disposed within the housing, the first power measurement circuit configured determine if a voltage of the alternating current power source is a first predetermined voltage or a second predetermined voltage and generate an output signal representative of the determined voltage of the alternating current power source;
• and
• a controller disposed within the housing, the controller configured to:
• receive the output signal;
• and
• prior to energizing the in-floor heating element, compare the output signal to a predefined AC voltage rating associated with the in-floor heating element, the predefined AC voltage rating associated with the in-floor heating element being representative of an operating voltage of the in-floor heating element;
• wherein the controller is further configured to prevent energizing the in-floor heating element if the comparison results in a mismatch between the output signal and the predefined AC voltage rating associated with the in-floor heating element.