| 摘要 |
A hot water control system, for providing unlimited domestic hot water upon demand and for conserving fuel, comprises first temperature control means responsive to temperature in the input conduit to a boiler for controlling the firing of the boiler, and diverting means responsive to changes in demand for diverting hot water from the output conduit of the boiler to the input conduit, in order to continue firing of the boiler when demand is reduced, and to delay firing of the boiler when demand is increased, so that the heat of previously heated water can be used.
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