elkimmeg said:common fiberglass insulation has a melting point of 1300 degrees and a boiling point of 1000 degres Considering a chimney fire exceeds 1700 degrees, fiberglass does not afford block off area protection
Mineral wool melting point is 2000 degrees
elkimmeg said:common fiberglass insulation has a melting point of 1300 degrees and a boiling point of 1000 degres [snip]
well I tried
lnh said:elkimmeg said:common fiberglass insulation has a melting point of 1300 degrees and a boiling point of 1000 degres Considering a chimney fire exceeds 1700 degrees, fiberglass does not afford block off area protection
Mineral wool melting point is 2000 degrees
Are those degrees F or C?
Would expanded vermiculite work OK as a chimney insulation material? I believe it's melting point is somewhere around 2400F.
Beanscoot said:I came across this old post in a search for something else. Several times I have put chunks of fiberglass insulation in my woodstove and it slowly melts and fuses to make compact clinker type slag. This was not in abnormally hot fires either.
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