season, a curve of the number of degree days per heating season obtained from the University of Delawarea#39;s heating plant at nearby Newark, DE. ... (6/76) 720 ft2 collector ($12.12/ft2) $ 8, 725 MAINTENANCE, REPAIR Leak in pool heater fin.
|Title||:||Sun, mankind's future source of energy|
|Author||:||International Solar Energy Society|
|Publisher||:||Pergamon - 1978|