| 摘要 |
A boiler apparatus includes a housing defining an interior boiler chamber and a burner element arranged to be in thermal communication with the boiler chamber. An ignition device is provided for instigating combustion of an inlet gas stream, and is arranged adjacent one edge of the burner element. A gas restricting device is utilized for restricting contact between the burner element and the inlet gas stream such that the inlet gas stream is initially incident upon the one edge of the burner element, thereby forcing the inlet gas stream to propagate across the burner element from the one edge.
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