Do you close an indoor fireplace flue by moving the handle lefft?

Most fireplace flues are closed by moving the handle to the right. This is because the damper, which is the metal plate that controls the airflow in the fireplace, is typically hinged on the left side. When the handle is moved to the right, the damper swings closed, blocking the airflow up the chimney.

However, some fireplace flues may be closed by moving the handle to the left. This is typically the case for older fireplaces that have a different type of damper mechanism. If you are unsure which way to move the handle to close your fireplace flue, consult the manufacturer's instructions.