There are several different temperatures you can set your water heater to so you can set it to whatever you and your family are comfortable with. Most people are comfortable with their water heaters set to 120F which is the new standard manufacturers pre-setting. If you have an older model than more than likely yours is at the medium setting. On electric models, you have to adjust the thermostats (there may be two) which are located behind two panels on the side of the tank. NOTE: be sure to turn off all electricity to the water heater before removing these panels and you can adjust the setting to the desired temperature. If you have a gas water heater there is a dial on the front of the gas valve which allows you to adjust it to the desired temperature.