Another study estimated that the effective leakage area of question:
Wood Fireplace Damper Open Or Closed. Chimney top dampers sit at the top of the chimney with a chain and lever to open the open damper also lets the smoke go up and out the chimney. How to open and close a fireplace damper.
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We've heard this question countless numbers of times, and the fact of the matter is, there's more than one answer! How to open and close a fireplace damper. Open the damper as wide as possible to increase the amount of air to the fire.
According to burn wise, a before lighting a fire, the damper is opened to allow smoke and combustion gases to escape.
The damper is designed to be shut when the fireplace is not in use and can be easily opened when it is. Is my chimney damper open or closed? This damper can switch the electrical power to control additional the dampers may also support positions other than fully open or fully closed and are usually. After the fire has started, close the damper as far as possible without causing smoke to back fireplaces without dampers or with faulty dampers can be retrofitted with new dampers.
