kind of an old reply... back in my Scout days (mid 50s) we used paraffin for both candles and heating water/soup... for tent lighting, a Gerber glass baby food jar was 1/3 filled with paraffin and a wick to make a mini hurricane lantern... for heat, a shoe shine tin was filled with paraffin and either a cotton cord ring or three wicks to be used with a GI canteen cup stand... a 1/4# block of paraffin was standard supply to carry... the three wick unit could be used as light also... later the paraffin was replaced with bees wax

for power outage lighting, I now use LED area lanterns and task lights, but still have a couple of large font Dietz and the smaller Feuerhand kero lanterns and a gallon of K1 kero, just in case... an older KMart Dietz is fueled with citronella based tiki torch oil for mosquito duty