Report "HI! The refrigerator is Thetford N112 in a caravan, which is taken in use 2004.The problem became by gas operation after winter storage of the caravan. First I noted that exhaust gases had been very hot hot because the white outside panel above the exhaust tube brownished and insect mesh was partly melted. Quite amount of soot was inside the tube where flame goes and therefore I changed the burner. New, after ignition the flame does not diminish. HIss from the burner became clearly louder than before and it can be heard inside the caravan. Exhaust gases are still very hot. For me operation by gas looks safety risk!"