| 摘要 |
PROBLEM TO BE SOLVED: To provide a safe and efficient hot air heater, sending out uniform warm air, produced by mixing cold air and hot air sufficiently so as not to generate any variability in temperature, and preventing a part of an air outlet port from getting to a high temperature. SOLUTION: A ventilating fan 8 is provided in an air outlet port 4 while the ventilating fan 8 sucks indoor air from a suction port 11 through an air passage 12 and, at the same time, sucks high-temperature gas, generated in a burner unit 5 and a combustion tube 6, through the air passage 12, then, the air and gas are released from an air outlet port 4 as warm air while mixing the indoor air and the high-temperature gas. According to the mixing, the warm air becomes uniform without any variability in temperature to permit comfortable heating and, at the same time, the amount of heat necessary for heating effect can be secured even when the temperature of the high-temperature gas is set at a low temperature, since the high-temperature gas is not released in biased condition. On the other hand, a part of the air outlet port 4 will not become a high temperature whereby a safe hot air heater having no fear of skin burn or the like can be realized. |
