强排式燃气热水器将废弃排向室外，对环境也具有一定的污染性。

The waste water discharged by the strong row gas water heater is discharged to the outside and has certain pollution to the environment.

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强排式：燃烧时室内取氧，废气通过小型鼓风机经过管道排出室外，价格较高；

Strong platoon type: when the combustion chamber takes oxygen, the exhaust gas passes through the small blower through the pipeline to discharge outdoors, the price is higher;

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强自吸泵为机械式自吸泵，具有独特的吸真空装置，可将泵的吸入侧空气排净，达到泵正常运转的条件。

Strong self-suction pump is a kind of mechanical self-suction pump with unique vacuum unit. It can discharge completely air of suction side making running conditions for the pump.

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