| 摘要 |
A water heater of the type in which spray particles of the water to be heated are brought into contact with the products of combustion of the fuel used for heating the water, the heater including a burner, a stack, and means providing a flow path having runs extended in different directions from the burner to the stack, and an accumulating chamber for heated water below the stack. Means are also provided for circulating water from the accumulating chamber to water spray nozzles delivering water spray into a run of the flow path extended downwardly into the water accumulating chamber, for preheating the feed water by bringing it into heat exchange relation with the products of combustion, and for passing the water through a water jacket for the combustion chamber after the water has been heated by contact with the products of combustion.
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