| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technology of preventing the situation in which dew condensation water gathers on the downstream side of an air supply and exhaust fan, in a forced supply and exhaust type heater of negative pressure type. <P>SOLUTION: This invention is embodied as a heater. The heater includes: a combustion chamber for burning fuel to generate a combustion gas; a heat exchanger for heat exchanging the combustion gas from the combustion chamber between itself and surrounding air; an air supply and exhaust flow path for supplying the combustion chamber with the air from outdoors and discharging an exhaust gas from the heat exchanger to outdoors; the air supply and exhaust fan provided on the downstream side of the heat exchanger of the air supply and exhaust flow path; and a convection fan for taking in indoor air, passing the air through the heat exchanger, and sending the air to indoors. The heater is provided with a dew condensation water discharge mechanism for discharging the dew condensation water generated from the exhaust gas on the downstream side of the air supply and exhaust fan of the air supply and exhaust flow path. <P>COPYRIGHT: (C)2012,JPO&INPIT |
