I can't tell from the pictures if their is indeed a lock on the propane door, or just a handle, which would make sense to keep with the overall look. I'm sure that Heartland has followed all the rules and regulations, so am not worried. Just an ole man, speculating before he knows the facts. Honestly, I didn't use to jump on that bandwagon when I was younger.
On the propane doors I saw at the Tampa show, there was no lock cylinder in them. Same style latch though. Just missing the lock. There is no hole where the lock would be. Just a smooth plastic surface.
On the pictures I posted this week, it "appears" there is a lock cylinder in the propane door latch. It may be a a faux lock plug. I will have the plant check on this.
Jim