We have a spare 20 pound (I think it is, the size you put under a big BBQ) which we carry as a spare for Extend a Stay, if we're a long time in one spot. I was reading somewhere that you shouldn't carry it in your basement when on the move. Something to do with heat in the summer time or something. My question is, when on the road, where do I put it? So far we're been putting it in the toad. When we park we just take it out and put on our site somewhere. This is all assuming that is has gas in it of course.