| 摘要 |
A liquefied petroleum gas (LPG) and electric water heater which includes a water tank, an electric heater and a separate LPG combustion chamber having a plurality of water conduits disposed within the water tank, a control box for changing the source of the heating fuels and sensors for sensing the water temperature whereby the LPG and electric water heater may select one of both LPG and electric power as a heat source.
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