A vapour provision system comprising an inhaler component and a base unit, wherein the inhaler component comprises a thermal store; and the base unit comprises: a receiving zone for receiving the inhaler component; and a source of energy for heating the thermal store in the inhaler component when the inhaler component is located in the receiving zone such that heat from the heated thermal store is used to vaporise at least a portion of a vapour precursor material to form a vapour for inhalation by a user when the inhaler component is removed from the receiving zone.