<；P>；PROBLEM TO BE SOLVED: To provide a heating device for a crop cultivation house which heats water circularly supplied into a radiation pipe via induction heat, sufficiently increases heating efficiency in the house, and reduces a consumed electric quantity to be excellent also in energy saving or maintenance costs. <；P>；SOLUTION: The heating device for a crop cultivation house functions as follows: making hot water circulate into a radiation pipe buried under the ground to heat the inside of the crop cultivation house； and heating water via an induction heating means disposed in an enclosure to turn the water into hot water so as to circularly supply the hot water to a heat-releasing pipe. The induction heating means is provided with a heating coil arranged around the heating pipe comprising a magnetic body, a transistor inverter supplying high frequency current to the heating coil, and a control device or the like controlling the transistor inverter. <；P>；COPYRIGHT: (C)2009,JPO&INPIT
