Campoholic Tip Of The Day! The tankless water heater and what it looks like when out of the RV. You must winterize a tankless water heater, they do retain water. #thecampoholics #gdrvimpact #gdrv4life #rvwaterheater #tanklesswaterheater #camperwaterheater #rvtips #rvlife #rvtipsfornewbies #rvfamily #rvmaintenance #winterizeyourrv | The Campoholics