CLOUDINESS PREVENTIVE MIRROR DEVICE FOR BATHROOM OR TOILET ROOM

PROBLEM TO BE SOLVED: To reliably prevent cloudiness of a mirror without wasting hot water by thermally connecting the mirror part for a bathroom or a toilet room and a bathtub or hot water piping through a heat pipe. SOLUTION: A mirror 1 installed on a wall of a bathroom and a hot water supply pipe 2 to supply hot water in a bathtub 3, are connected by a heat pipe 4, but in this case, the upper end part of the heat pipe 4 is installed on the back face of the mirror 1 through a good heat conductive installing plate 5 so that the lower end part is similarly installed in the hot water supply pipe 2 through a good heat conductive installing plate 6. Since a heating medium becoming vapor at a hot water temperature is sealed in the heat pipe 4 as an operating liquid, when the heating medium is heated after heat of hot water flowing in the hot water pipe 2 is transmitted to the lower end part of the heat pipe 4, the heating medium becomes vapor so as to move to the upper end part of the heat pipe by rising in the heat pipe 4. While the mirror 1 is heated by heating medium vapor, the heating medium descends in the heat pipe as liquid by being condensed after being cooled by the mirror 1.