Better industrial heating data are needed

It is hardly surprising that so rapidly growing and useful an art as industrial electric heating should be handicapped in these earlier days of development by inadequate data. Wherever specialists in this field foregather this lack is voiced. Descriptions of installations are plentiful and complete enough, and these serve a necessary purpose in exchanging reports on practises and showing prospective customers physical realities, but the “before and after” economic data so urgently desired by both manufacturers and central-station companies are pitifully scarce. We believe that the situation will improve from now on, but progress will indeed be slow unless heating problems are attacked with true scientific thoroughness by engineers responsible for the success of equipment design and applications.