MIDAlpha TitleTitleYearColor/BWRunning TimeFormatsAbstractTopics
5443BILL LOOSELY'S HEAT PUMPBILL LOOSELY'S HEAT PUMP1975color10 min16mm An intriguing film for anyone bedeviled by the high cost of home heating. A thermal engineer, Bill Loosely collects warmth from the ground outside his house and pumps it inside. The principle--using copper tubing and freon gas--is clearly explained with animated diagrams and by Loosely himself. It is so simple that you'll wonder why you didn't think of it yourself.