Welcome to the forum. This is the best place to get help, there is a bunch of smart talented people on here and it has helped me a lot. Our RV is similar to yours and we didn't think the 6 gal water heater would work but we have had no problems having enough water for showering. We do wet up, shut off, soap up then rinse and we have never ran out, now with that said we cant stand in it like at home and do the major soak. Have fun on your adventures.