ALLRED, JOHNNY W.; SHINN, JOSEPH M. JR.; KIRBY, CECIL E.; BARRINGER, SHERIDAN R. - An Inexpensive Economical Solar Heating System for Homes (Nasa Technical Memorandum X-3294) [July1976]

Washington, DC, National Aeronautics and Space Administration. 1976. Stapled Wraps, 4to - Over 9 " - 12" Tall. Ill.: Black and White Photos, Drawings, Charts and Diagrams. Paperback, Covers faded and lightly edge-rubbed; textblock clean; 56p. This report describes the design, construction, testing, and economic analysis of a low-cost solar heating system. Background information is given in the report to help a specially skilled homeowner understand how a solar collector works and what it can be used for. Assembly instructions for the homeowner are given in the appendixes. Very Good.

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