Water Heater....
My neighbor has a c34 and just replaced his water heater. He had the rectangular unit and replaced it with another rectangular unit. I have a c30 and replaced the old round unit with the rectangulr unit also. The biggest problem when replacing the heaters is to be sure you can get them thru the hatch or doorway. Mine is in the aft locker. I had to really struggle to get the old round one out and again pry the locker opening out an inch or so to get the new one back in. It is very tight but it will go in.Also, if you go from round to rectangular shape, you may have to build a new support stand for the heater as I had to.Good luck,Paul