In future of IC2 ideas:
Smoke pipe
Coal burner (remains smoke to the smke pipe)
More chemicals like:
Hydrogen (used for makeing explosives and water in compressor whit oxygen)(make it from maceratoring water)
Oxygen (makes fire to burn much more and faster)(the same as Hydrogen)
Plutonium (a typical of stronger uranium thats needed in nuclear reactor (as real) and as plutonium rods)
HCL (a really corrupting liquid whos can corrupt 3 blocks down and are making a 4 hearts hurt on player when standing on it)
Magnesia (a light material that burn really warm and makes much light its like a wire that u can put on other blocks like redpower wires but now just a mg wire (gd for generators) )
More Of my ideas are comming soon hope u all and the devlopers enjoy Have a nice day 
