HOT AIR HEATER

PROBLEM TO BE SOLVED: To provide a hot air heater enhancing heat transfer performance to improve heat exchange efficiency, which is a problem of a conventional hot air heater mainly using pellet fuel, and provide a hot air heater capable of reducing combustion ash to reduce load of taking-out work of combustion ash.SOLUTION: A hot air heater includes: a furnace 110 arranged in a casing 101; a burner 120 including a fuel input port 121 for pellet fuel; a heat exchange part 130; a blower 140; a hot air discharge part 150; and an exhaust gas induction part 160 inducing combustion gas G after fuel combustion with the burner 120. In the hot air heater, provided is a fire weir part 116 extending inclinedly downward from the middle of the upper surface of a combustion gas chamber 113 of the furnace 110 toward an outlet 114, and an ash accumulation chamber 117 of combustion ash S is provided on a lower surface close to the outlet 114 of the combustion gas chamber 113.SELECTED DRAWING: Figure 1 【課題】主にペレット燃料を用いる温風暖房機の従来からの課題として、伝熱性能を高めて熱交換効率の向上を図れる温風暖房機を提供する。燃焼灰を減少させ、燃焼灰の取出し作業の負担を軽減できる温風暖房機を提供する。【解決手段】ケーシング101内に配置される火炉110と、ペレット燃料の燃料投入口121を備えるバーナ120と、熱交換部130と、送風機140と、温風吐出部150と、バーナ120による燃料燃焼後の燃焼ガスＧを誘引する排ガス誘引部160を備え、火炉110の燃焼ガス室113の上面途中から出口114に向けて斜め下向きに延びる火堰部116を設ける。燃焼ガス室113の出口114寄りの下面に燃焼灰Sの灰集積室117を設ける。【選択図】図１