Furnace practice

A fuel economy film, for furnace men and plant managers, dealing with furnaces of all kinds - using coal, pitch, gas, oil or electricity. The ain is to get the heat and transmit it with the minimum loss. The chief subjects touched are firing methods, use of mechanical stokers; proper control of air supply; importance of cleanliness; repairs, maintenance, and improvements; recovery of hear from chimneys; need for careful records as a check on running economy.