锡拉丘兹大学于1974年6月获得NSF/RANN拨款，以研究太阳能的重要潜在用途。该研究团队由雪城大学和两个参与组织的人员组成:Singer公司（气候控制部门）和建筑/工程公司Vosbeck、Vosbeck、Kendrick和Redinger。这项研究的具体应用是，使用闭环热泵系统，对中等规模的商业和机构建筑进行供暖- 最先进的太阳能集热器和储水箱。太阳能集热器还可以作为一种散热装置，在有净日冷负荷的季节进行夜间制冷。基本的吸热和储热系统还通过水对水热泵提供生活热水的生产。这些辅助功能增强了基本太阳能加热系统的经济吸引力。引文:德克萨斯州达拉斯ASHRAE交易会第82卷第1部分研讨会

Syracuse University was awarded an NSF/RANN grant in June 1974 to investigate an importantpotential use of solar energy. The research team was composed of personnel from SyracuseUniversity and from two participating organizations: The Singer Company (Climate Control Division)and the architectural/engineering firm of Vosbeck, Vosbeck, Kendrick and Redinger. Theparticular application that was the subject of the study is the heating of commercial andinstitutional buildings of moderate size, using the closed-loop heat pump system with state-of-the-art solar collectors and a storage tank. The solar collector also functions as a heatrejection device for night time cooling in seasons where there is a net daily cooling load.The basic heat absorption and storage systems provide for the production of domestic hot waterin addition, with the aid of a water-to-water heat pump. These auxiliary functions enhance theeconomic attractiveness of the basic solar heating system.