PTC HEATER UNIT AND PRESSURE REDUCING VALVE FOR LPG FUEL

Disclosed is a PTC heater unit wherein the gas passing through a gas channel for heating is heated by a PTC element. In the PTC heater unit, a gap channel (60) that constitutes at least a part of a gas channel for heating (59) is formed between the inner circumferential surface of a base cylinder part (42a) on the outer circumferential surface of which a PTC element (43) is provided and the outer circumferential surface of an insertion cylinder (61) that is inserted into the base cylinder part (42a). Consequently, a pressure reducing valve for LPG fuel, which is provided with a PTC heater unit that is capable of increasing the heating efficiency of a PTC element, is provided.