Oh, never heard of such a thing.
One thing I like about it is the gas is all external aside from where it goes into the camper for the appliances
Yes, that's what I meant. The piping for mine is all external as well, but after screwing around with the control valve and seeing what's actually holding the gas back (a couple springs and o-rings), and seeing how much can come out without my noticing if it's not all aligned perfectly, and seeing the flame that can ensue, I think it's a good idea anyway. Cheap insurance at $50. I was going to order
this one.
Years ago I was ice fishing with a buddy in the shanty his Grandfather had built. It had a heater in it from a mobile home that was waaaaay too big. Even on low and all the windows open, it would be miserably hot. So you'd have to turn it on and off. The gas valve in the heater didn't hold, so it would have to be turned on/off at the tank outside so it took two people, and was finicky to get it lit and stay there. I was manning the valve and my buddy was inside with the heater, and he said good to go so I opened the valve up the rest of the way and went inside. He was still lying on the floor messing with the stove, but I figured he was adjusting the flame. The door had one of those hook latches like campground toilets have, and I no more than latched the door and BOOM! It was similar to the movies when a shell lands nearby and everything's blurry and quiet, with a ringing noise, and time slows down. After what felt like an hour, but was probably a few seconds, we came to, and my buddy had soot in the pattern of the grille on his face, no eyebrows, and fused up hair on his head. The windows were lying 10 feet away in the snow, and the door was swinging open, latch pulled from the wall. Apparently it lit for a few seconds and he said it was good, then went out, and he tried to relight it. Still not sure exactly what happened; the feed line was just soft copper through a hole in the wall and may have cracked due to fatigue, who knows. We decided the fish weren't worth it, packed up, and went home.