A cartomizer 114 for an electronic smoking device 110 comprising an elongated, hollow body having a mouthpiece 36 in a first end and a coupling adapted to couple to a main body 112 of an electronic smoking device in an opposite end thereof, an atomiser 26 to create an aerosol for inhalation by a user through the mouthpiece opening by atomising a liquid from a liquid supply store 34, wherein an air flow path extends from an air inlet 138 to the atomiser, and an air pre-heating element 342 arranged in the flow path 140 upstream of the atomiser. Also disclosed is an electronic smoking device comprising a main body including an electric power source, a mouthpiece portion having a mouthpiece opening in an end, at least one air inlet, an atomiser arranged in the mouthpiece portion and operable to create an aerosol for inhalation through the mouthpiece opening, wherein an air flow pathway extends from the air inlet to the atomiser, wherein the atomiser is connected to the power source and an air pre-heating element is arranged in the flow path upstream of the atomiser.