There were two pulverized coal fired, water tube steam boilers that were converted to fuel oil in the early 1970’s. It was decided to convert these boilers to gas & oil firing to reduce sulfur emissions and improve reliability. Each boiler had the capacity to produce 120,000 lbs. of superheated steam per hour. The burner wall was completely rebuilt and a 1200 foot long high pressure gas line had to be designed and installed to fee the boilers. I was the project manager for this conversion of these boilers to natural gas and oil firing.