Pig-SmokerExplorerSep 22, 2013water heaterMy water heater runs of gas or electric. Today when I left the campground to come home I left the switch on electric just wondering if this could do any damage. My battery was still hooked up and camp...Show More
downtheroadExplorerSep 22, 2013Can't hurt a thing...Your electric side will only run on 110v current. Also, the tank was probably still full of water.Just never turn on your water heater when the tank has been drained and not refilled.