| 摘要 |
PURPOSE: A small hot water boiler is provided to simplify the structure and improve the productivity with the single block body, and to heat partially and efficiently with preventing leakage and driving noise. CONSTITUTION: A water heating chamber(2) having an electrothermal heater(2h) is mounted at a side of a single block body(1). A pump(3P) is installed in a pump chamber as a hot water circulating unit, and a water pipe(2d) is contacted to the water heating chamber. A circulating pipe is contacted to a circulating port in the lower part of the water heating chamber, and the circulating port is connected to the pump chamber through a channel(4) formed in a side plate(1a). The pump chamber is connected to the water heating chamber through the channel. Fluid from the circulating pipe is streamed into the water heating chamber by the pump, and supplied to the water pipe of a side plate(1b) after heating. The structure is simplified with integrally forming the water heating chamber and the pump chamber, and the small boiler is used conveniently with preventing leakage and noise.
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