UNDERFLOOR HEATING DEVICE

PROBLEM TO BE SOLVED: To provide an underfloor heating device that is easily installed to a building. SOLUTION: This underfloor heating device is equipped with a boiler 1, that heats hot water, a radiator 2 that heats underfloor space B and at the same time, a room A by the hot water which is heated by the boiler 1, and a hot-water pipe 3 that connects the boiler 1 to the radiator 2. A breather 5 for allowing the room A to communicate with the underfloor space B is provided in a floor material 4, and the radiator 2 is suspended from the floor material 4 at a place where the breather 5 is provided for installing in the underfloor space B. Also, on the upper surface of the breather 5, a natural ventilating opening component 6 formed into a ladder shape is provided. In the underfloor heating device, the radiator 2 is connected to the hot-water pipe 3 on the floor material 4, and the radiator 2 is suspended in the breather 5 from an area above the breather 5 for fitting, thus facilitating installing the radiator 4.