Abstract :
R. R. Herrmann (Northern States Power Company, Minneapolis, Minn.): I for one am particularly glad to see the investigation of house-heating equipment which is now going on. Some of the crudest of applications of engineering, if we can call it such, have in the past been made on house-heating furnaces. Engineers have improved industrial power plants very materially but little has been done in a similar manner with household furnaces.
