The efficiency of heating surface is high, the speed is rapid, and the controllability is good, which is easy to realize high temperature and local heating.

它加热效率高、速度快、可控性好，易于实现高温和局部加热。

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Reason: when the humidity outdoor, indoor, outdoor heating surface of the condenser will, this will be the frost of heating efficiency.

原因：当室外湿度大的时候，室内机制热，室外机冷凝器表面会结霜，这样会影制热效率。

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Use to simple chemistry cleanout means to get rid of the begrime in the work-surface of heating exchanger, in order to improve its thermal efficiency of using process.

用简单的化学清洗方法彻底除去换热器工作表面的积垢，提高其在使用过程中的换热效率。

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