通过介绍空调废热可回收利用的条件和回收途径，得出空调废热制备生活热水的可行性研究，并对制备过程中存在的一些问题进行了阐述，如空调冷凝回收，中央制冷空调等，利用空调废热制备热水可提高能源利用率,节约能源费用并减少环境污染。

The preconditions and approaches for the recycling of the exhaust heat of air conditioners are expounded and conclusion is drawn that it is feasible to make living hot water by recycling the exhaust heat of air conditioners. Furthermore, the problems in the making of the living hot water, such as the collection of the exhaust heat and the issues related to concentrated air conditioning systems, are discussed.   Making hot water with the exhaust heat of air conditioners is helpful to improve the energy consumption efficiency, to save the energy cost and to minimize the environment pollution.