It depends on your use of propane, the water heater and the Furnace use a lot more than the rest. I carry an extra bottle in a milk crate (so it does not turn over) I use this bottle also for cooking outside. If we have electric, For heat in the winter We use a cube heater and it does wonders.The AC heat coils are just for "knocking the chill off" and will not take the place of a real furnace. HW heater is turned on after we set up, then after it shuts down we turn it off, we have hot / warm water for most of the day and turn it on again late in the afternoon. If you are staying where there are full hook ups you can shift a lot of items to electric to save LP. You did not state where you are camping our Fl. winters are usually mild Hope this helps, but you will get the feel after a couple of trips.