A heat transfer apparatus includes: an evaporating portion that evaporates a working medium by heat of an exhaust gas from an internal combustion engine; a condensing portion that condenses the working medium having been evaporated; a circulation path portion that causes the working medium to circulate between the evaporating portion and the condensing portion; a heat storage member that is provided within the evaporating portion; and a supplying and collecting portion that supplies the working medium to the evaporating portion when the internal combustion engine starts, and that collects the working medium having been condensed when the internal combustion engine stops such that the working medium having been condensed does not contact with the heat storage member.