What is a Chimney Damper?A chimney damper is a device that is placed within a chimney just above the fireplace. The purpose of the damper is to seal the chimney when a fire is not lit to prevent heat from the home from escaping. | | By ProMatcher Staff | | Updated: 06/18/2018 | | | A chimney damper is an appliance that is put in place inside a chimney above the fireplace. The purpose of the chimney damper is to close a chimney when it is not being used. By sealing the chimney, heated air is kept inside the house and prevents the loss of thousands of dollars worth of heat.
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