Vehicle with a fuel cell device

A vehicle with a fuel cell device, wherein a water tank means and supply means for supplying water accommodated in said water tank means to the fuel cell device are provided, and at least one device which generates heat is provided for warming up said water, and/or said a fuel cell device comprises a reformer and fuel supply means for supplying fuel to said reformer, and at least one device which generates heat and means for warming the fuel by the heat generated by said device are provided: