The present invention relates to a sun flower type-heater, and more specifically, to a device obtained by modifying sun flower-type heater heating a radiation plate by using a flame of a burner to achieve ventilation through a circumferential corner of the radiation plate and maintain low temperature of a surface of the device without insulation. The sun flower type-heater comprises a combustion cone (100), a burner (200), a radiation plate (300), a housing (400), a ventilation fan (500), and an insulation separation wall (600). The combustion cone (100) is made of a plate material with a cone-shape and has an entrance with a small diameter and an exit with a large diameter. The burner (200) is assembled with the entrance of the combustion cone (100) and is provided with fuel and power to generate a flame to the inside of the combustion cone (100). The radiation plate (300) is made of circular plate material having a plurality of holes (310), has a plurality of ventilation openings (320) arranged in a radial shape along a circumferential corner, and is assembled with the exit of the combustion cone (100). The housing (400) receives the combustion cone (100) while having a predetermined gap and forms an insulation ventilation space (410) between the interior surface and the exterior surface of the combustion cone (100). The ventilation fan (500) induces outer air to be blown into the interior of the insulation ventilation space (410) of the housing (400). The insulation separation wall (600) has a cone-shape and divides the insulation ventilation space (410) into two parts in a radial direction. Heated air reaches a place in a far distance to increase heating efficiency. Moreover, low temperature of the surface of the heater can be maintained without insulation harmful to a human body, such as plaster or the like, such that easy assembling is allowed, and an accident is prevented, thereby maximizing productivity and safety of a product.
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