I am new with this MH. This will be my first winter in the south with it. I am leaving in a couple weeks. I would like to use a small outside lp tank connected to it while spending many weeks on the same site. This will reserved the propane in the bigger tank. It would be easier to fill the smaller tank. What do I need to use to connect it? Would it shift automatically to the bigger tank when the smaller outside one is empty? How well would it work?