22
FIGURE 28
Assembly Instructions - 60” (cont.)
FIGURE 29
FIGURE 30
FIGURE 31
FIGURE 32
Step 5:
Continue stacking the remaining three courses of
back wall. Be sure to reverse the positions of the 38-1/2”
M67 and the 22-1/4” M67 in each successive course.In this
way, the butt joint where the two M67 components meet are
staggered from course to course.
The overall width dimension at the back of the
firebox should be 73-1/2” including the sidewalls. (Figure
29).
Step 6:
Steel angle 4” x 6” x 5/16”, one required, 73-1/2”
long which must span the top of the MAGNUM Model 60
firebox opening.
This steel angle sits on top of the uppermost side
wall component with the four inch leg in the horizontal
position. To avoid a thickness problem with the placement
of the steel angle it is necessary to cut a notch in the top Side
wall component where the angle is to sit. This notch should
be cut approximately 5/16” deep. The notch should start at
the front face of the side wall component (at both the left
and right hand walls) and run to a point 4” back toward the
firebox (Figure 30).
The steel angle sits in this notch. The six inch leg of
the steel angle is in the vertical position and is to be located in
alignment with the front of the firebox. The ends of the steel
angle should not protrude beyond the outer firebox side walls
(Figure 30). Mortar between the steel and the notch in the top
of the side wall is not needed.
Step 7:
Damper support (front & rear), Part M69, four
required, to be field cut to fit.
Bevel cut one end of each of two M69 damper
supports to 35-1/2” in length from the long point of the bevel
cut to the un-cut square end. (Figure 31). The long point of
the bevel cut is to be at the top of the damper Support
For best results a 15˚ bevel angle is suggested.
Step 8:
Bevel cut one end each of two M69 damper supports
to 38” with the long point of the bevel at the bottom of the
damper support. The bevel angle must be at the same angle
– in this case, 15 degrees - to match with the bevel angle of
the other damper supports already cut in Step 7 (Figure 32).
Step 9:
Set the cut damper supports along the front and along
the rear of the firebox using one of each of the cut pieces (one
with the long point at the top of the piece and one with the
long point at the bottom of the piece) together as pairs.
The damper support pair at the front of the firebox
opening will be mortared together and set into the steel angle
from Step 6 (Figure 33).
44”
41 1/2”
4”
