Name:   MrHodja - Subject:   Good Luck! Date:   10/8/2019 3:39:30 PM

We routinely turn the water and water heater off any time we leave unless we will be back in a week or so.  I installed a water heater switch on the side of the kitchen island and turning it off is a part of our routine exit/close up procedure.  That being said, if your system has no leaks there should be no way the water heater would drain and leaving it on would do no harm except to your power bill.