Historical Minute - January 2013
“Reviewing the results that can be accomplished with heating by refrigeration in connection with summer air conditioning, it is safe to predict, that the near future will see an ever increasing application of this principle.
“Its growth is dependent on a source of electric power at reasonable cost. We will see the maximum development of this form of heating in moderate climates, and for applications that necessitate installations of cooling equipment of sufficient size to take care of heat loads in excess of the mere cooling and dehumidifying of air.
“If, however, you consider air conditioning basically of ‘controlling’ summer conditions and its installation, is justified for reasons of increased profit and comfort, then the heat obtainable by the reversed refrigeration cycle is an additional source of energy that can profitably be utilized.”
—“Cooling and Heating by Refrigeration,” by Henry L. Galson, Baldwin Locomotives, January 1936.