Question of the day; has anyone who has an M-43 ever fired up the gas fired heater in the patient compartment? I'm looking to use mine, if it's feasible. Everything looks to be in good shape, unit doesn't seem to have been used much, still "new" looking. However, don't want a possible "bomb" right behind me, inside the vehicle, if there are issues. Both fans (circulation and burner) work fine. Everything else seems to check out. Just haven't hooked the gas line up to it yet. I did ask the question over on the G-741 site, lots of lookers but no comments or replies. Anyone????