Direct expansion solar collector and heat pump
Subtitle: final report.
Contributors: Sigma Research, inc.; United States. Dept. of Energy.
Publisher: Sigma Research, Inc.
Published: 1982
Place of publication: Richland, Wash
Language: eng
Number of pages: 77
Subjects: Solar collectors; Heat pumps; Solar heating
Notes: "Contract DE-AC03-79SF10542".

"DOE SF/10542-T1(DE82014662)".

On cover: U.S. Dept. of Energy.