Specialty Applications - Two Story Stacked Installations (cont.)
The following chart gives important dimensions needed
when laying out two story stacked replace units. Chart dimensions
assume that both the upper and lower replace units sit on the same
centerline.
Note: Widths of both Isokern Standard and Magnum replaces
are the same. Only the depth of the rebox and the height of the
nished opening differ.
Upper/Lower A B C D E F
36/36 43 51 30 81 70 142
36/42 43 51 33 84 70 142
36/48 43 51 35 86 70 142
42/36 49 54 33 87 70 148
42/42 49 54 33 87 70 148
42/48 49 54 35 89 70 148
48/36 53 56 35 91 70 149
48/42 53 56 35 91 70 149
48/48 53 56 35 91 70 149
Chart Dimension Description: (Figure 78)
“A” is the outside width dimension of the Fireplace model chosen
for the upper unit.
“B” dimension represents distance (taken in the direction of the
chimney offset) from the centerline of the lower replace to the
outside face of the eight inch (8”) thick bearing wall underpinning
the upper unit’s oor system.
“C” dimension is the distance (taken away from the direction of
the chimney offset) from the centerline of the lower or the upper
replace, whichever is the larger plus eight inches (8”) to the
outside of the eight inch (8”) thick bearing wall for the upper unit’s
support slab.
“D” is the outside-to-outside dimension of the two eight inch (8”)
thick bearing walls underpinning the upper unit’s support slab. “D”
is also the width of the upper unit”s support slab and includes the
additional space for the width of the DM chimney as it bypasses the
upper unit. “D” is also the sum of “B” plus “C”.
“E” is the height of the Fireplaces chosen for the lower unit and
includes the Isokern three inch thick base plate.
“F” is the dimension from the top of the support slab of the lower
unit to the top of the oor of the upper unit.
Notes:
If raised hearths are planned for the lower unit then “F”
dimension will increase by the height of the raised hearth at the
lower unit.
In the interest of clarity the drawings on page 44 and 45
(Figures 77 & 78) of the offset chimney sequence do not show the
offset block support columns as required for offset sequences. See
pages 33 & 34 for complete offset support instructions.
Consult local structural engineer for support slab load
calculations.
46
FIGURE 78