An electronic cigarette vaporiser system operable in a ‘power’ mode to increase the amount of vapour produced by a vaporiser that forms part of the system, compared to normal, whilst monitoring the temperature of a heating element in the vaporiser to ensure that excessively high temperatures, associated with undesirable compounds in the vapour produced by the heating element, are not reached. The system includes a button or sensor that alters the operation of the heating element in such a way as to increase the vapour produced, compared to normal.
