We have an Avalon Cedar LP gas stove -7yrs. This whole time eveytime it goes off there is a very loud bang. We were told a while back that it was normal and there was nothing they could do. I have tried adjusting flame and air and nothing works. We kind of gave up for a while. I am just wondering if anyone else has had this experience...it gets quite irritating-esp to guests who are not used to it!