Yesterday evening, I met Eric (Another AMBO Rig.....) here in Pensacola, who was on his way from South FL to TX, and was bringing me some parts from a junkyard ambulance that is almost identical to mine.
As he was giving me a quick tour of the inside of his rig, he commented on the pictures and showed me his Big Buddy Heater. It was sitting on the floor right below the Action Station and I was standing in the side doorway when he lit it off. I could feel the heat 4' away without the fan on, and even before it had heated up and was burning evenly, so there is no doubt in my mind about it being sufficient for heating my ambo/camper. Tom, the comment you made about it 'running you out of there' is pretty accurate. I will be getting one of those, along with a hose and connector to use it with the larger bottles.
Eric, it was great meeting you and getting a look at your rig and the work you've done to it firsthand! Be safe and enjoy your trip. And again, thank you for the parts, I know you went out of your way to get them for me. Getting that slide out battery tray will save me a great deal of work and expense, and it being an exact match to the one I already have is just icing on the cake!