| 摘要 |
A wood or coal burning stove has a main opening from the fire box into a heating chamber at a remote location from the flue exit from that chamber so the combustion gases must move around within the chamber before escaping and an auxiliary opening from the fire box directly to the flue exit, there being a movable closure which closes the auxiliary opening when the front door is closed and which is operatively connected to the front door so it is opened when the front door is opened.
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