| a | Initial Investment | $ 26770.28 |
| b | Saving in Energy | $ 75131.14 |
| c | Saving in Maintenance | $ 21780.00 |
| d | Saving in Natural Gas | $ 79383.85 |
| e | Saving in Pollution | $ 84713.76 |
| F | Total Saving Cost | $234238.47 |
| f | Total Saving in 50 Years | $ 234238.47 |