My first share with the community, if already exist I do apologize.
Wanted to be able to refuel my probes with my asteroid mining base orbiting kerbin. Tweaked the Stock ISRU config file after not easily finding a non mod alternate to add this function to the stock ISRU in KSP 1.04. Currently I copied the stats from mono conversion as I play sandbox and don't stick to absolute realism. Some one is more then welcome to tweak the cfg for a more realistic approach and be less of an exploit if seen as such.
Just copy gamedata folder to your ksp directory, choose replace file.