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FrogBlog — Venting

Venting Your Kiln; Why & When?

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Venting Your Kiln; Why & When?

When I first started fusing glass in 2001, the subject of venting your kiln was really not much of a discussion. Everyone vented the kiln to cool it. The kiln manufacturers would wince when the topic came up. They hated it, but we all thought that was what we were supposed to do.  In glass fusing we called it "crashing" or crash cooling. We basically opened the kiln at 1470F (full fusing temperature) and then let cool air into the kiln until the thermocouple reading was below 1200F. This might have to be done a few times to account for...

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