Heat & Glo HST-48D Owner's Manual page 20

C. Sidewalls/Surrounds
Figure 6.3 Mantel Leg or Wall Projections (Acceptable on both sides of replace)
D. Frame the Fireplace
Figure 6.4 Framing the Fireplace
Gridlines at 1 in. scale
FLUSH
FRONT
11 3/8 in.
[289 mm]
12 in.
[305 mm]
You must maintain
2 in. (51 mm) min. air space
clearance from the
chimney to the
enclosure.
27 in.
(686 mm)
BRICK
FRONT
42 in.
[1067 mm]
fireplace opening
47 in.
[1194 mm]
width of fireplace
12 in.
[305 mm]
48 in.
(1219 mm)
4 in.
[102 mm]
9 3/4 in.
[248 mm]
12 in. (305 mm) max.
Note: Fireplace
Header cannot be
positioned until after
the fireplace assembly
is in place.