Unverified90% confidenceDecision RuleTime unknown
更换热水器加热管时功率必须与原机一致或不超过原机最大值，如原机2000W可换1500-2000W，功率过大会烧断温控或跳闸，过小则加热缓慢
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Unverified热水器加热管功率必须匹配原机型：储水式电热水器常见1500W/2000W/2500W，功率与原机不符会导致漏保频繁跳闸或加热极慢，更换时按铭牌功率±0选购91% similarUnverified更换加热管时，功率必须与原机额定功率一致或更低，切勿加大功率——例如原机1000W换成1200W会导致温控器、电源线过载，长期使用引发线路老化甚至起火88% similarUnverified加热功率与用电负荷的权衡：2000W以上暖风机启动瞬时电流大，老房2.5㎡²线路或与热水器共用回路易跳闸，功率越高越暖但对电路要求越高82% similarUnverified功率越大升温越快但同房间跳闸风险越高，老房浴室与热水器/浴霸共用回路时，2400W暖风机+即热热水器易超负荷跳闸，需确认回路负荷或选2000W以下82% similarUnverified爆炒需求选功率≥2100W且线圈盘直径≥180mm的机型，小功率(1800W以下)因加热面积集中易导致锅底受热不均，爆炒火候不足81% similar
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