The grille is an elegant finish for the ducts that distribute warm air from the fireplace. It is installed on the wall or fireplace casing through vents and flexible clips. This solution allows for quick assembly and disassembly, e.g., for cleaning purposes. The grille is equipped with a housing that allows it to be mounted on the wall. The curved surface and the angled recess in the frame make the Oskar model resemble a picture frame. The grille frame is painted with electrostatic paint, making it resistant to mechanical damage and high temperatures, while its color remains permanent and unchanged.