FIG. 1 is a front perspective view of the firebox.
FIG. 2 is a back perspective view of the firebox.
FIG. 3 is a front plan view of the firebox.
FIG. 4 is a back plan view of the firebox.
FIG. 5 is a right plan view of the firebox.
FIG. 6 is a left plan view of the firebox.
FIG. 7 is a top plan view of the firebox.
FIG. 8 is a bottom plan view of the firebox.
In accordance with a second variant of the present design:
FIG. 9 is a front perspective view of the firebox.
FIG. 10 is a back perspective view of the firebox.
FIG. 11 is a front plan view of the firebox.
FIG. 12 is a back plan view of the firebox.
FIG. 13 is a right plan view of the firebox.
FIG. 14 is a left plan view of the firebox.
FIG. 15 is a top plan view of the firebox.
FIG. 16 is a bottom plan view of the firebox.
In accordance with a third variant of the present design:
FIG. 17 is a front perspective view of the firebox.
FIG. 18 is a back perspective view of the firebox.
FIG. 19 is a front plan view of the firebox.
FIG. 20 is a back plan view of the firebox.
FIG. 21 is a right plan view of the firebox.
FIG. 22 is a left plan view of the firebox.
FIG. 23 is a top plan view of the firebox.
FIG. 24 is a bottom plan view of the firebox.
In accordance with a fourth variant of the present design:
FIG. 25 is a front perspective view of the firebox.
FIG. 26 is a back perspective view of the firebox.
FIG. 27 is a front plan view of the firebox.
FIG. 28 is a back plan view of the firebox.
FIG. 29 is a right plan view of the firebox.
FIG. 30 is a left plan view of the firebox.
FIG. 31 is a top plan view of the firebox.
FIG. 32 is a bottom plan view of the firebox.
In accordance with a fifth variant of the present design:
FIG. 33 is a front perspective view of the firebox.
FIG. 34 is a back perspective view of the firebox.
FIG. 35 is a front plan view of the firebox.
FIG. 36 is a back plan view of the firebox.
FIG. 37 is a right plan view of the firebox.
FIG. 38 is a left plan view of the firebox.
FIG. 39 is a top plan view of the firebox.
FIG. 40 is a bottom plan view of the firebox.
In accordance with a sixth variant of the present design:
FIG. 41 is a front perspective view of the firebox.
FIG. 42 is a back perspective view of the firebox.
FIG. 43 is a front plan view of the firebox.
FIG. 44 is a back plan view of the firebox.
FIG. 45 is a right plan view of the firebox.
FIG. 46 is a left plan view of the firebox.
FIG. 47 is a top plan view of the firebox.
FIG. 48 is a bottom plan view of the firebox.
In accordance with a seventh variant of the present design:
FIG. 49 is a front perspective view of the firebox.
FIG. 50 is a back perspective view of the firebox.
FIG. 51 is a front plan view of the firebox.
FIG. 52 is a back plan view of the firebox.
FIG. 53 is a right plan view of the firebox.
FIG. 54 is a left plan view of the firebox.
FIG. 55 is a top plan view of the firebox.
FIG. 56 is a bottom plan view of the firebox.
In accordance with an eighth variant of the present design:
FIG. 57 is a front perspective view of the firebox.
FIG. 58 is a back perspective view of the firebox.
FIG. 59 is a front plan view of the firebox.
FIG. 60 is a back plan view of the firebox.
FIG. 61 is a right plan view of the firebox.
FIG. 62 is a left plan view of the firebox.
FIG. 63 is a top plan view of the firebox.
FIG. 64 is a bottom plan view of the firebox.
In accordance with a ninth variant of the present design:
FIG. 65 is a front perspective view of the firebox.
FIG. 66 is a back perspective view of the firebox.
FIG. 67 is a front plan view of the firebox.
FIG. 68 is a back plan view of the firebox.
FIG. 69 is a right plan view of the firebox.
FIG. 70 is a left plan view of the firebox.
FIG. 71 is a top plan view of the firebox.
FIG. 72 is a bottom plan view of the firebox.
In accordance with a tenth variant of the present design:
FIG. 73 is a front perspective view of the firebox.
FIG. 74 is a back perspective view of the firebox.
FIG. 75 is a front plan view of the firebox.
FIG. 76 is a back plan view of the firebox.
FIG. 77 is a right plan view of the firebox.
FIG. 78 is a left plan view of the firebox.
FIG. 79 is a top plan view of the firebox.
FIG. 80 is a bottom plan view of the firebox.
In accordance with a eleventh variant of the present design:
FIG. 81 is a front perspective view of the firebox.
FIG. 82 is a back perspective view of the firebox.
FIG. 83 is a front plan view of the firebox.
FIG. 84 is a back plan view of the firebox.
FIG. 85 is a right plan view of the firebox.
FIG. 86 is a left plan view of the firebox.
FIG. 87 is a top plan view of the firebox; and,
FIG. 88 is a bottom plan view of the firebox.
The broken line showing is included for the purpose of illustrating portions of the article and forms no part of the claimed design.