January 1, 1977
      
                  
        
  Author(s)
  J W. Grimes,   W. J. Mulroy,   B. L. Shomaker
 
       
            
    
    
        A study was made of an automatic - and a manual- defrost refrigerator/freezer combination, and an upright and a chest freezer to measure the effect on energy consumption of five variable usage conditions: thermostat setting, ambient temperature, food load