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testing flue draft

John Dirks Jr

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Originally posted by AHI

Instead of lighting a match or a lighter, are there other simple ways of testing for proper flue draft? I would rather not fill the house with the sulfer smell.

Hold a small mirror near the flue. (at the draft hood or draft diverter) If it's backdrafting, the mirror will fog up.

In a pinch, use your fingernails. Moisture will condense on them.

- Jim Katen, Oregon

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