I have changes my insulation 3 times and cant get it right.The old insulation disintigrated when I removed it to check the lower flue area. Since, I replaced this with a special  fiberglass insulation that has a fire rating and is normally put in between floors of a building as a fire block. Too many chemicals in this material. I got a headache from this, so I tore it out.Next, I got some yellow fiberglass insulation that came out of a dishwasher.Nice and neat, but way too many fumes.Headachs again, but not as bad.Maybe I am building a tolerance to this stuff. Today, I went a appliance junkpyle behind a appliance dealer and got some fiberglass insulation out of an old oven. Sounded good to me. This is designed ot take the heat from a gas burner.Well , I installed this for the third time, and still get a smell that wont work in a camper. Man am I getting good at dissembeling the burner and intake vent area of the dometic I dont install the frig to test it , but use a gas grill tank
 and regulater  hooj up to do the testing.What is it that you have used  so successfully?

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