Building 15 was the Heating Plant. This one-story, rectangular, reinforced concrete building, was and stood tall. A mezzanine balcony contained a toilet, shower, and wash room. The building was equipped with four oil fired steam generating boilers, each able to of steam per hour at pressure, and the additional equipment needed, oil burners, pumps, and water heaters. The building also contained three secondary concrete fuel oil storage tanks with a capacity of that were connected to the main storage tank. Structures 16 and 43 were for fuel oil storage. Fuel oil would be unloaded at the fuel oil transfer house, building 43, a ×, reinforced concrete building, from railroad tank cars. Three tank cars could be unload simultaneously, the oil being pumped to a 275,000 gal. pre-stressed reinforced concrete storage tank, building 16, diameter and high tank buried below grade and covered with earth. A small gauge and apparatus room adjoined the tank. Oil flowed by gravity from the tank to the heating plant in steam heated pipes to prevent coagulation. With the exception of a few buildings equipped with separate boilers, all buildings on Station were supplied with of steam through a welded underground steam distribution supply and return mains. The steam was used for both heating and hot water heating.