| 摘要 |
<p>PURPOSE:To balance the temperature of hot air and contrive safety at the time of blowing air, by providing a heat-insulating plate for quiding an air flow downward at the time of blowing at a position between a hot air blow-off port and a combustion chamber. CONSTITUTION:An air flow generated by a blower 2 passes between the combustion chamber 6 and a heat-insulating plate 4. Air flowing on the upper side of the chamber 6 is mixed with a combustion gas discharged from the chamber 6, and the mixed gas is blown off along hot air flow guides 5 and a bent part of the plate 4. With the plate 4 thus provided, cold air flow is reversed along the bent part of the plate 4, so that cold air is prevented from being discharged through the hot air blow-off port, and the temperature of a main body of the heater is prevented from being raised.</p> |
