FLOOR HEATER DEVICE

PURPOSE:To make an integral assembly of an electrical energized heater, a floor heating device utilizing a thermal accumulation material and an electrical hot water heater and further to enable an economical characteristic utilizing a mid-night electrical power to be pursued by a method wherein a circulating circuit for thermal conductive medium heated by hot water of the electrical hot water heater utilizing the mid-night electrical power may form a floor heating part along with a thermal accumulation part having thermal accumulation material with a melting and solidifying latent heat. CONSTITUTION:This floor heating device 1 is operated such that heat of hot water got in an electrical hot water heater 2 utilizing a mid-night electrical power is supplied to a thermal conducting medium to heat the thermal conducting medium and it has a circulating circuit 3 having this heated thermal conducting medium and floor heating portions 7 to 9 and a thermal accumulation part 10 having the thermal accumulation material with melting and solidifying latent heat, so that a heating of all day can be performed by circulating thermal conducting medium heated by a heat exchanging with the hot water heated by the mid-night electrical power and at the same time heat from the thermal conducting medium is stored by utilizing a phase variation of the thermal accumulation material. This accumulated heat is radiated by the phase variation and can be utilized for heating in a day time. In particular, since the mid-night electrical power is used only for a heating source of the electrical heating hot water heater 2, it is possible to further improve an economical characteristic of utilizing mid-night electrical power.