Buy Paraffin Wax

I can draw breath with the cornstarch and want to try paraffin wax, but when I bought some it was solid blocks, then on you tube there was a fire breather into a gallon container 'liquid paraffin oil I want to know how to transform blocks luquid where to buy paraffin luquid plz help!

Liquid paraffin is used in the old style lamps with a wik easy to find lamp oil