Yep, I misspoke, I meant propane detector. I like your switch, SoundGuy, but since I never used the door frame heater, I didn't feel a need to install a switch. The bigger draw on the fridge will be when the gas valve is energized. Yep, we've all done something stupid at least once ;) but older trailers didn't have all the safety detectors and those of use that remember it that way are still alive. Just need to remember to reconnect things. A note to self left in the trailer should suffice. We are responsible for our own safety. If I run into door frame condensation I may install a switch.