| 摘要 |
An enclosure surrounding the burner of a furnace, including a top panel, a rear panel, a bottom panel, a front panel, and first and second side panels. An air inlet is provided in one of the panels. A baffle is provided within the enclosure and extends between two opposed panels, each of the opposed panels adjacent the panel having the inlet. A chamber is partly defined by the baffle, the inlet opening into the chamber. The chamber is provided with a vent through which the inlet is in fluid communication with the burner.
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