Im looking at a Trek Safari,,,the dude says that when going down the road, the fridge runs off the inverter...I thought it ran on the propane ???....Also is the water heater gas/electric???
its supposed to be on propane ? if they wired the fridge outlet to the inverter or put a whole house inverter and have the fridge on 'automatic' it will switch to 120v mode not a good idea, as that means it will switch to 120v everytime the inverter is on but could be, he is mistaken , get him too show you how this works see what really happens