| 摘要 |
A furnace of the type for supplying circulating heated air to an comfort space, the furnace being contained within a cabinet, having a door allowing access to the interior thereof, which is set in a door frame, wherein the furnace is capable of operating in at least any vertical orientation, an improvement comprising. The bottom end of the door is removably retained against a bottom portion of the door frame, via a hinge, when the furnace is any vertical orientation. At least one latch is located adjacent the top end of the door when the furnace is in any vertical orientation, the latch being constructed to engage a mated door strike; and at least one door strike is located in both a top portion and a bottom portion of the door frame.
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