HOT AIR HEATER

摘要

The room heater alarms a filter stopping phenomenon by directly detecting temperature variations of burning flame. The hot air blowing room heater comprises an exterior chamber (1) having an inlet (3) connected with a filter (2) and supplying air for hot blow, another inlet (5) for supplying combustion air, and a hot air outlet (6); an air circulation fan (7); a combustion chamber (8) having the burner (1); a burning gas supply passageway (10); an electronic valve (12) linearly opening according to the room temperature; a pickup coil (15) detecting the rpm of the air circulation fan (7); a thermocouple (13) for detecting the temperature of the burner (7) flame; an alarm (21) for generating sound.