Does anyone have an Isotemp water heater installed on their boat? I have a few questions and a bit of a rant. I am curious if anyone has had any issues with the heater (or the company). Specifically,IMG_6549.jpgIMG_6551.jpg winterizing it with RV antifreeze. I understand that it can corrode the anode faster but what about causing any expansion? I winterized my boat by putting RV antifreeze in the water tank. I pumped it through the system and pulled the batteries for the winter. Now, i installed the batteries and put water in the tank to flush the antifreeze out. I discovered a leak in the front of it.........The gasket had pushed out along with the metal plate and bent the rim. The heater was completely ruined. The pop off valve should have worked at 100psi. Obviously that did not work. I called Isotemp in florida to hopefully get it warranted but I'm getting the run around. The water heater was intalled in august/ september and never used.