I was wondering how one raises the temperature of water in their water heater. Our water heater (my mother’s) is so “cool” that it’s barely warm enough to shower with. That is, we don’t even need cold water on ever. This puts a strain on our family of six everyone morning because usually only 2 people can shower on one tank of water. My mother is afraid of raising it because the one she had about 20 years ago exploded. Any suggestions? I’m sick of cold showers.