A heating device for a smoke generator includes at least one heating rod and a vaporization tube. The vaporization tube includes a longitudinal passageway. The vaporization tube coils around the heating rod and includes an end connected to an outlet of a pump of a smoke generator. Preferably, the vaporization tube helically coils around the heating rod to form a coiling structure having at least one layer. Preferably, the vaporization tube includes a non-circular cross-section having at least one side in surface contact with a circumference of the heating rod.