A professional who controls ovens to carbonize coal according to coking schedules. Respnsibilities include:

• Removes flue caps, using hook, and determines temperature in flue and condition of nozzles by observing color of flame and using optical pyrometer.
• Determines type of gases in flue, using gas analyzer.
• Reads gauges and turns valves to regulate flow of fuel gas and air and maintain specified temperatures in flues.
• Observes gauges and adjusts weights on governor to maintain specified gas pressure in collecting main.
• Cleans plugged gas nozzles, using poker.
• Inspects airflow and gas-reversing mechanisms, and adjusts or repairs equipment, using handtools.
• Inspects finished coke visually or with pyrometers for temperature and quality, as it is pushed from oven, and adjusts temperature of oven accordingly.
• Prepares daily reports from gauges and pyrometer readings, noting changes in pressure or temperature.
• Repairs ovens, using handtools and spray gun.