Patent ID: 8301021

Claim:
A heating device for fuel, comprising: at least one PTC heating element; and a heat transfer device in thermal contact with the at least one PTC heating element, which exhibits two heat transfer elements, between which the at least one PTC heating element is arranged, and is clamped with a tubular casing constructed of a plastic based material that envelops the heat transfer device and the at least one PTC heating element; wherein the casing and the heat transfer device are for selectively receiving fuel to be heated during operation of the heating device through the casing and around the heat transfer device; wherein a guiding device is provided on an interior side of the tubular casing, which interacts with at least one of the at least one PTC heating element and the heat transfer device in such a way that the at least one PTC heating element and the heat transfer device that is selected is axially inserted into the casing in order to assemble the heating device, wherein the guiding device exhibits at least three radial webs that extend into the interior of the tubular casing; wherein a spring system separate from the heat transfer device is provided, which tensions the heat transfer device against the guiding device so as to fix the guiding device in place.