This completes the fireplace grate channel warm air distributed by gravity or mechanical means of fire. It is mounted in the wall of the flue or chimney housing Luft grid construction is characterized in that it has an air inlet masked. When installing the grille should be aware of its proper orientation. If you install the fireplace grille air intakeshould be at the bottom, where the contribution of the inlet should be at the top. will keep adequate convection heated air. grilles are painted with powder, which is characterized by the color fastness and heat resistance. Additionally, paint grille protects against damage mechanical.