| 摘要 |
A heater with a humidifier wherein the humidifier comprises a plurality of double pipes in the uppermost line of the heat exchanging pipes of the heater. The double pipe includes an inner pipe for burned gas flow and an outer pipe for containing humidifying water, both of which are arranged concentrically. A plurality of orifices are formed at the top portion of the outer pipe so that the steam generated from the humidifying water by heat of the burned gas in the inner pipe may be spurted from the orifices to humidify the air stream blown by a blower. The outer pipes are connected to a common feed-water pipe in which a flow control valve may be provided. The control valve is also electrically connected to a feed-water level sensor in the outer pipe so that the level of the water in the outer pipe may be detected and controlled.
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