From time to time I'll get a little carried away loading the organic fuel rods into my reactor and get it a little too hot for my liking. As the CAT thermometer climbs to 1500 or so it starts creaking and pinging. It is a plate steel stove and I'm thinking it's normal but it scares the bejeebies out of my wife. Anybody having the same noises? There is a sheet metal outer shell to my stove which probably adds to the sound effects.