New, unskilled labor ever women - can operate it after a few brie instructions. Porter Fireless Locomotives are rugged and cannot be damaged by inexperienced operators. There is no boiler, firebox, electric motor, generator, or internal combustion engine on a Porter Fireless. There are very few working parts. The reservoir never needs replacement.
Repairs are few and far between.
Thus the cost of maintenance is amazingly low. More A Porter Fireless costs no more than any other type of locomotive of equivalent power. The savings in operation and maintenance costs make it the most economical type of locomotive obtainable. There are no fumes or dirt about a Porter Fireless, an important advantage when operating inside a building or wherever smoke and cinders would be a disadvantage. The first Porter Fireless was placed in service in 1914 and is still working efficiently.