Only turn the water heater on when necessary, and adjust temperature controls to avoid overheating.
热水器不用就别开，温度控制不要过热。
Digital or analog time and temperature controls.
数字或模拟的时间和温度控制。
Only turn the water heater on when necessary, and adjust temperature controls to avoid overheating. Put a lid on a pan when boiling water.
低碳生活小窍门6。热水器不用就别开，温度控制不要过热。烧水时在锅上盖好盖子。
Only turn the water heater on when necessary, and adjust temperature controls to avoid overheating. Put a lid on a pan when boiling water.
低碳生活小窍门6。热水器不用就别开，温度控制不要过热。烧水时在锅上盖好盖子。
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