A method of controlling at least one comfort parameter in a building, the building comprising a system for controlling the at least one comfort parameter, the system for controlling the at least one comfort parameter comprising a user interface device , a sensor , and a control device , wherein the primary purpose of the sensor is different from recording a signal indicative of the at least one comfort parameter, the method comprising the steps of: providing a demand signal in respect of a change in the at least one comfort parameter, wherein the demand signal is provided by a user and using the user interface device ; the user interface device transmitting the demand signal to the control device ; the control device obtaining a reading from the sensor , the reading being indicative of a parameter other than the at least one comfort parameter; the control device analysing the demand signal based on a current state of the system for controlling the at least one comfort parameter and based on the reading obtained from the sensor ; the control device changing one or more settings of the system for controlling the at least one comfort parameter based on the analysis of the demand signal; and the control device producing a control signal as a function of the one or more changed settings of the system; characterised in that the building comprises a computing device having a processor and wherein the sensor is a temperature sensor of the processor of the computing device, wherein the at least one comfort parameter is a room temperature of a room of the building, the method comprising the steps of: the control device obtaining a temperature reading from the sensor , the temperature reading being indicative of a temperature of the processor; and the control device analysing the demand signal based on a current state of the system for controlling the room temperature of the room of the building and based on the temperature reading. providing a demand signal in respect of a change in the at least one comfort parameter, wherein the demand signal is provided by a user and using the user interface device ; the user interface device transmitting the demand signal to the control device ; the control device obtaining a reading from the sensor , the reading being indicative of a parameter other than the at least one comfort parameter; the control device analysing the demand signal based on a current state of the system for controlling the at least one comfort parameter and based on the reading obtained from the sensor ; the control device changing one or more settings of the system for controlling the at least one comfort parameter based on the analysis of the demand signal; and the control device producing a control signal as a function of the one or more changed settings of the system; characterised in that the building comprises a computing device having a processor and wherein the sensor is a temperature sensor of the processor of the computing device, wherein the at least one comfort parameter is a room temperature of a room of the building, the method comprising the steps of: the control device obtaining a temperature reading from the sensor , the temperature reading being indicative of a temperature of the processor; and the control device analysing the demand signal based on a current state of the system for controlling the room temperature of the room of the building and based on the temperature reading. the control device obtaining a temperature reading from the sensor , the temperature reading being indicative of a temperature of the processor; and the control device analysing the demand signal based on a current state of the system for controlling the room temperature of the room of the building and based on the temperature reading. <EOS>