Did you change the energy consumption of the inserters to make them a bit more efficient? Especially fast inserters, those would become prohibitively expensive to run, I imagine, at 180kW.
The funny thing is, inserters work with a different energy system. Electrical ...
This little mod was mainly made to help JGGames with his steampunk challenge (everything that can be done using non-electric means must be done using those non-electric means).
Basically, it adds Burner versions of different buildings to the game.