天气预报 > 技术 > 空调费电还是取暖器费电
空调费电还是取暖器费电
更新时间: 2020-12-28 16:39:21  

取暖器要比空调更费电。空调的本质就是一个热泵,只是它输送热量。制冷时,空调(热泵)将室内热量输送到室外,供暖时,室外热量输送到室内。因此,当空调制热时,消耗的电能仅用于维持热泵的运行。作为热泵,耗电量只是供热功率的一小部分,因为产生的热量实际上来自室外。电加热器将电能转化为热能,耗电量几乎等于加热功率。从实际经验来看,开一个1500W的电热器,把室温从15度提高到21度需要2到3个小时,室温只能维持在21度左右。同一个房间,使用1000W变频空调,室温从15度到23度只需要20到30分钟。而且室温保持在24度,空调只需要消耗300w到500w。

关键词: 空调费 还是 取暖器

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