Honda EU2000 propane conversion

We dry camp and only use the propane for cooking and hot water if not on the gen-set. If it's hot we use the 2400i to run the a/c, if not the 1000i runs everything if needed. When the power is on the fridge and everything else runs on 110v. We figured this out when we had a houseboat on Lake Powell with a propane Onan: it would empty a 30gal propane bottle in a day and a half and we only had two onboard! Kind of a problem if you go out for a week at a time. With the gasoline gensets we could run the big one for 3 days on a five gallon can and it was a lot easier to find refills if we needed any. This way we used less than 3gallons of propane a week and could wait to refill until we got back to the dock. An RV has pretty much the same systems as a houseboat, so I don't see why this won't work out the same way.....