X degrees plus ambient…what is X? | Hearth.com Questions and Answers

X degrees plus ambient…what is X? - # 2192

Question:

Someone told me that a way to check to see if a surface was getting too hot was to take the ambient temperature plus a certain number of degrees. Does anyone know the number of degrees for this equation?


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Answer:

If you are talking about combustible materials close to the fireplace such as a wooden mantle. The allowable temperature is 117 degrees F plus ambient or room temperature. Some wood burning standards simply refer to 190 degrees F as the maximum which is roughly the same thing in most cases.

Regards, from the Gasman


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