| 摘要 |
PURPOSE: A blower for a boiler which heats water using heated air is provided to prevent air leakage by installing more than one opening and closing valve. CONSTITUTION: A blower for a boiler which heats water using heated air is composed of blowers(3',3''), discharge pipes(4,4'',4'''), a heater, and a water heating space. The blowers send external air to the discharge pipes. The discharge pipes discharge the air generated from the blowers. The heater has an inflow hole, an electric heater, and an ejecting port. The air flows into the inflow hole. The electric heater heats the air. The ejecting port discharges the heated air.
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