| 摘要 |
The gas fire is ideally a simulated solid fuel fire and has a controllable baffle 10 located in a flue outlet 12. A baffle adjustor, such as a motor 26 operated by a control box 32, moves the baffle between an open and closed position to restrict/enable flow of combustion products and air through the outlet. Movement of the baffle is based on one or more parameters such as temperature measurements from a thermistor or thermocouple sensor 30. Ideally the baffle is operated so as to be open during early ignition of the fire and to gradually close as the fire heats up, thereby reducing the amount of room air lost unnecessarily to ambient via the flue. The motor is ideally located away from the baffle to protect the motor from overheating due to the heat of combustion products in the flue. Mechanical linkage using cams and/or bevel gearing is used to mechanically connect the motor to the baffle in this instance. Micro-switches may also be used. A duct having a fan is ideally provided to draw cool room air 20 over the motor to cool it when the fire is on. |
