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  • Writer's pictureMichael Proto

Thermal Expansion

Alteration to temperature inside a chimney or duct system that causes the metal surfaces to expand.

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Deposits of hydrocarbons that were in the smoke going up the chimney that have condensed into a solid form.

(also referred to as a Saddle) A ridge that extends from the back of the chimney to the slope of the roof, with the purpose of shedding water away from the connection between the chimney and the roof.

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