Here are two things you should do before you go on vacation that you’re probably not doing:
1. Turn the water off to the house. If a water pipe in your house bursts while you’re gone on vacation, you’ll be in a world of hurt when you get back.
2. Turn the water heater’s temperature down. There’s no reason to have it heating up water when you’re not there. Just make sure to turn the temperature back up when you get home.