摘要:
A monitor for the venting system of open combustion gas fueled space heaters is disclosed. A sensor (12) is positioned near the vent slot (20) where the combustion gases are sucked from the heater (10). In sucking the combustion gases from the heater, however, room air (30) is also caused to pass over the sensor thereby cooling the sensor. If the venting system should malfunction, the sensor will be bathed in hot combustion gases (24) and the temperature recorded by the sensor will rise dramatically. When the sensor records a dramatic rise in temperature, the fuel to the heater is shut off.