FIG. 1 is a top, front, end perspective view of a fireplace liner showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is an end elevational view thereof, the opposite end being a mirror image of that shown;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a developed top plan view thereof in unfolded condition;

FIG. 7 is a top plan view thereof.