自20世纪70年代初以来，住宅热泵热水器已在美国市场上销售。由于1972年的石油禁运，许多制造商在20世纪70年代和80年代初设计并开始生产家用热泵热水器。一度，市场上有超过15个品牌的家用热泵热水器，由许多知名品牌公司以及规模较小的新公司生产。不幸的是，住宅热泵热水器的早期运行经验并不好。 市场上的许多产品都是在没有进行充分的长期测试的情况下推出的，并且显示出不可接受的故障率和维护要求。因此，大多数品牌的家用热泵热水器不再上市。本文介绍了家用热泵热水器遇到的一些历史问题，以及作者住宅中安装的一个幸存品牌的新型家用热泵热水器的运行经验。讨论了操作行为、声音问题、除湿效益、维护要求和能耗。 单元:双引文:研讨会，ASHRAE交易，第108卷，第。2.

Residential heat pump water heaters have been readily commercially available in the United States since the early 1970s. Due in no small way to the oil embargo of 1972, a large number of manufacturers designed and began producing residential heat pump water heaters in the 1970s and early 1980s. At one point there were more than 15 brands of residential heat pump water heaters on the market, produced by many prominent brand-name companies, as well as smaller new companies.Unfortunately, the early operating experience with residential heat pump water heaters was not good. Many of the products on the market had been introduced without adequate long-term testing and exhibited unacceptable failure rates and maintenance requirements. As a result, most brands of residential heat pump water heaters are no longer on the market.This paper describes some of the historical problems encountered with residential heat pump water heaters and operating experiences with newer-model residential heat pump water heaters from one of the surviving brands, installed in the author’s residence. Operational behavior, sound issues, moisture removal benefits, maintenance requirements, and energy consumption are all discussed.Units: Dual