I can't imagine anyone who has really equated what the use of propane vs electric for an RV fridge is except maybe the fridge manufacturer. Could you take your fridge make/model and research the specs? One thing about any fridge is that it is more efficient full rather than empty or partially full. Also, the ambient temp in the RV and outside will determine how often it has to cool down. I run our fridge and freezer on electric whenever possible since we also run the a/c units a lot here in Florida. If on the road then the genny provides the juice.
