Have you some one in mind to collect insurance on your death.Please do not even think of such a thing. Carbon monoxide is a killer it is quite but it gets the job done.
I have a NORCOLD 12VOLT/110 VOLT COMPRESSOR FRIDGE IT WAS INSTALLED IN 2005. GREAT UNIT LOW VOLTAGE DRAW ON 12 VOLT,NEVER A PROBLEM WITH TEMP OR OF LEVEL. NOT CHEAP BUT QUALITY NEVER IS. I WOULD NOT WANT TO GO BACK TO PROPANE. HERB.