| 摘要 |
This disclosure is directed to a heat exchanger which includes a coil through which a heat exchange medium, such as Freon, is circulated between an inlet and an outlet, the coil defining an interior chamber having a lower chamber portion, means for generating a flame, such as a natural gas burner at a lower end portion of the coil whereby heat is introduced into the interior chamber and rises upwardly therein such that the same might be absorbed by the heat exchange medium for subsequent utilization, and the upper end portion of the heat exchanger being closed preferably by insulation material such that virtually all of the heat introduced into the interior chamber is absorbed during the passage therethrough.
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