tobias crabtree

hey, new member here. i have an 83 dolphin that was towed off the playa after burning man in 2012. the engine is great (after cleaning out the carb) but the camper part was trashed. i've done a couple months of refurbishing and i'm down to the last few details that i'm not sure about. first, the heater wall heater in the back doesn't fire. anyone have some steps to take on figuring this out? instructions are worn off. stove works great and propane flow seems good. second, the water heater hasn't worked since i've started my relationship with the ol' dolphin. don't know about water heaters, so i'm asking for advice if anyone has the time. thanks…t.