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根据冷凝式天然气快速热水器排烟温度与其热效率关系的理论分析，并通过试验得出冷凝式天然气快速热水器热效率与其排烟温度的关系。试验结果表明冷凝式燃气快速热水器有很好的实用价值。
According to the theoretical analysis of the relationship between the temperature of the condensing natural gas rapid water heater and its thermal efficiency, the relationship between the thermal efficiency of the condensing natural gas rapid water heater and its exhaust gas temperature was obtained. The test results show that the condensing gas rapid water heater has good practical value.