Abstract: A mobile communications device for controlling a thermal appliance is described. The device includes a first communications interface configured to communicate over a wireless local area network and a second communications interface configured to communicate over a wide area network. A processor is coupled to the communications interfaces and configured to send commands to control, and to receive information relating to, operation of the thermal appliance. A user interface for obtaining user input to control the thermal appliance and for providing information relating to operation of the thermal appliance is included. The processor is configured to: monitor connection of the first communication interface with the wireless local area network, determine whether to trigger an alert in response to loss of connection, and to send a command, based on user input provided in response to a triggered alert, to the thermal appliance via the second communications interface.

Abstract: A controller for a thermal appliance configured to heat or cool an area of a premises. The controller comprises: a communications interface, configured to communicate over a communications network; a data store comprising information regarding a transport infrastructure; and a processor coupled to the data store and to the first communications interface. The processor is configured to obtain an estimate of the time for a user carrying a mobile device to return to the premises via the transport infrastructure.

Abstract: A mobile communications device for controlling a thermal appliance. The device comprises a first communications interface configured to communicate over a wireless local area network and a second communications interface configured to communicate over a wide area network. The device also comprises a processor coupled to the communications interfaces and configured to send, via the local area network, commands to control operation of the thermal appliance, and to receive, via the local area network, information relating to operation of the thermal appliance.

Abstract: A controller for a thermal appliance configured to heat or cool an area of a premises. The controller comprises: a communications interface, configured to communicate over a communications network; a data store comprising information regarding a transport infrastructure; and a processor coupled to the data store and to the first communications interface. The processor is configured to obtain an estimate of the time for a user carrying a mobile device to return to the premises via the transport infrastructure.