I am in need of replacing the original water heater in my 1967
Overlander. The original model is a 6-gallon Bowen gas model. I was looking into purchasing a I was told by a RV repair person that I'm better off replacing the whole unit instead of the water heater tank only. I thought the replacement units were sold as a package or bundle. What are the other parts I need to buy for the water heater unit replacement?
I was considering buying this model water heater: Atwood G6A-8E 96121
Has anyone had experience with this particular water heater, or with replacing them in general?