[KongchangAI]
Unverified84% confidenceCautionTime unknown

燃气热水器搭配回水系统需确认热水器本身支持零冷水/回水接口,普通热水器加装外置循环泵会导致频繁启停缩短热水器寿命,且部分机型防冻保护会误触发

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