| 摘要 |
PURPOSE:To prevent a cold air from generating when the burner is stopped, and only an air blowing is performed, and prevent an uncomfortable feeling from being given to people by providing a section for which a heat accumulating material enclosed panel is used, on the wall surface of an air passage on the rear stream side of the combustion chamber. CONSTITUTION:A part of air which is sucked in from an air suction port 5 enters a combustion chamber 2 as air for combustion, and the remaining air passes through spaces between the combustion chamber 2 and an inner wall (1b), and between the inner wall (1b) and an outer wall (1a), and mixes with a combustion exhaust gas with a high temperature, and is sent out to the outside from an hot air blow-out port 4 by a fan 6. In this case, at one part of the peripheral wall, i.e., (1b) of an air passage A on the rear stream side of the combustion chamber 2, a heat accumulating material enclosed panel 7 is used, and when a gas burner 3 is operated, one part of the heat of the hot air is accumulated in the heat accumulating material. By this method, even when the gas burner is stopped, the hot air is heated by the latent heat of the heat accumulating material. |
