I assume the C34 is very similar to the C-36. I replaced the water heater in my 1989 this spring. You really need to look at what you have. some models have the engine heater pipes on the back, some have them on the front with the hot and cold lines. It is propbably a 6 gal. I got mine from Defender. In order to get the thing out I had to remove the counter front. It will not fit through the bottom drawer hole. You will need to drill and pop out the teak plugs hiding the 6 screws attaching the front to the galley counter face.