The fireplace shutter frame completes the channel for the starting of warm air that is distributed by gravity or mechanical means from the fire. The result of its installation is the proper fitting to the wall of the flue or chimney.

The construction of the shutter typically features a covered air inlet. During the installation of the shutter, it is important to ensure correct orientation: the air inlet should be at the bottom, while the exit should be at the top. This will maintain appropriate circulation of warm air.

The shutters are painted with powder, which is characterized by color durability and heat resistance. Additionally, the paint on the shutter protects it from mechanical damage.