Abstract: A method and system for easily relocating a thermostat for a heating and/or cooling system is used to enable a more suitable location for the efficient control of heating or cooling. The thermostat system utilizes a selectively placable transmitting thermostat that communicates with a receiver that is installed in place of the original, removed thermostat and connects by the existing original thermostat wiring to the HVAC units. In another aspect, multiple transmitting thermostats communicate with a single receiver which accepts thermostatic and other data. The receiver is configured to allow the user to select which one or more of the thermostats are made active. If multiple thermostats are activated, the user can select the priority assigned to each.