There is only one thing which is done in a different way in order to preserve the properties of the wax.
it is recommended to use what we here call "Baño Maria". the wax to be melted should be melted in a recipient that is submerged in the water that you then heat. this way the process is slower and the direct heat from the fire does not come in direct contact with the wax.
I have tried this once and then poured the melted wax through a mosquito net into a dry clean recipient to get read of debris. worked pretty well.