I like my RinseKit, generally. I recently bought the heat immersion so that I could take a warm shower after long days of dirty work doing wildfire remediation. I was especially excited about the feature which allowed the heater to function off the trailer adaptor. What I didn't realize is that for the heater to work, my camper van has to be turned on so that it doesn't drain down the battery. In hindsight, this makes sense. But I wish I'd known this ahead of time so I didn't spend money on something I really can't use without further polluting an already devasted environment just so I could rinse off comfortably on cold nights. :(