I use tap water but if yours is no good use spring. As far as heating I never have but some say to pasturize the honey by heating it 150 or so. I soak the fruit in spirits then add 2lbs of honey and a gallon of water and shake it up good with some yeast and nutrient all in a 1 1/2 mason jar. I cover with some foil and rack to a jug after a week and add a bit more nutrient then put an airlock in.
