学生生活热水是校园耗能的重要部分之一，合理选择生活热水系统的热源是节能校园建设的一个关键因素。空气能热水器被称为“第四代热水器”，与之前“燃气热水器”、“电热水器”、“太阳能热水器”相比，在各方面均有非常明显的优势。目前高校采用较多的太阳能+空气能热水系统是一种最安全的系统，其建设模式多采用BOT投资模式。%Student life hot water is an important part of campus energy consumption, and a reasonable choice of heat system is a key factor in the construc-tion of energy-efficient campus. Air heaters can be called "fourth-generation water heater", compared with the previous "gas water heater,""water heater", "solar water heaters," it has obvious advantages in every respect. Nowadays, the heat water system of "solar energy + air energy" adopted in universities is the safest system, whose construction model generally adopts BOT investment model.
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