---------------------------------------------------------- No. | Equipment | Installation | | cost -----|-------------------------------------|-------------- 1 | 2 | 3 | | I | Oil | $179,000.00 II | Oil and electric | 213,000.00 III | Natural gas | 117,000.00 IV | (A) Natural gas containing furnaces | 120,000.00 V | Natural gas and electric | 181,000.00 VI | City gas | 122,000.00 VII | City gas and electric | 182,000.00 VIII| Water gas | 214,000.00 IX | Water gas and electric | 238,000.00 X | Producer gas | 246,000.00 XI | Producer gas and electric | 255,000.00 XII | Coal and electric | 194,000.00 XIII| Electric | 257,000.00 ---------------------------------------------------------- --------------------------------------------------------------------- | Annual operating expenses | | Cost No. |----------------------------------------| Total | per lb. | Fixed | Heat | Labor | | metal, | charges | | | | cents -----|------------|-------------|-------------|-------------|-------- 1 | 4 | 5 | 6 | 7 | 8 | | | | | I | $26,850.00 | $156,000.00 | $105,000.00 | $287,850.00 | $3.19 II | 31,950.00 | 142,770.00 | 97,000.00 | 271,720.00 | 3.02 III | 17,550.00 | 44,250.00 | 97,000.00 | 158,800.00 | 1.78 IV | 18,000.00 | 41,000.00 | 94,000.00 | 153,000.00 | 1.70 V | 27,150.00 | 73,820.00 | 90,000.00 | 190,970.00 | 2.13 VI | 18,300.00 | 123,200.00 | 94,000.00 | 235,500.00 | 2.62 VII | 27,300.00 | 128,820.00 | 90,000.00 | 246,020.00 | 2.74 VIII| 18,600.00 | 104,000.00 | 94,000.00 | 216,600.00 | 2.41 IX | 27,450.00 | 117,420.00 | 90,000.00 | 234,870.00 | 2.62 X | 18,900.00 | 69,300.00 | 90,000.00 | 178,200.00 | 1.98 XI | 27,750.00 | 92,520.00 | 90,000.00 | 210,270.00 | 2.34 XII | 29,100.00 | 87,220.00 | 90,000.00 | 206,320.00 | 2.30 XIII| 38,550.00 | 135,000.00 | 84,000.00 | 257,550.00 | 2.86 --------------------------------------------------------------------- NOTE.--Producer plant fixed charges are included in the cost of gas and are charged as "heat" in column 5, so they are omitted from column 4. CHAPTER XII PYROMETRY AND PYROMETERS