13
6) Set the lintel in place as shown in
Figure 21
. Check that
all is level. If you need to make adjustments, use shims.
Place one or more of these shims between the lowest
wall component and the top surface of the base plate.
Once you are satisfied with the degree of levelness, you
can address any gap that may have occurred with an
appropriate amount of mortar.
Figure 21
Lower Dome
Assembly
Note:
Although you are cautioned to use MASON-LITE
mortar sparingly because it does have such holding
power, you should look over the firebox assembly at the
end and fill in any gaps, especially joint connections, with
the mortar. Needless to say, you must make adjustments
to be sure the fireplace is level and square while the
mortar is still wet.
7) Set the remaining lintel as shown in
Figure 22
.
Figure 22
Lower Dome
Side
parts have a slight bevel. Check for vertical with level
(
Figure 24
).
Figure 24
Upper Dome
Sides
Upper Dome
Front/Rear
10) As you are connecting each MASON-LITE component,
be certain you are following the instructions given
previously for using MASON-LITE mortar. Stop to look at
the smoke dome side, front and rear walls to see that
they are aligning correctly and that the surfaces be
smooth and uniform. Make sure connections are covered
with an adequate amount of mortar. Remember that you
have the option of using shims and covering them with
mortar if you need to. Make any adjustments to the
fireplace alignment before continuing to the next step.
Figure 25
Completed
Firebox
Lintel
8) Now you are ready to start the smoke dome assembly.
Take the lower side dome positioned so that the beveled
face lines up with the inward angles of the lintel sides
(see
Figure 23
). Top surfaces should be level.
Figure 23
Top surfaces
to be level.
11) Check your assembly here. If things are proceeding as
they should be, the finished top surface should be fl at
and level.
12) Now you can set the smoke dome top plate into position.
Be sure that it is flush in every direction as you place it
on the crest of the smoke dome wall assembly.
13) Seal Anchor Plate using a
1” thick ceramic fiber blanket.
Complete the Anchor Plate assembly by securing with (4)
1/4-inch masonry anchors as shown in
Figure 26
.
9) Now position the front/rear smoke dome parts on top of
dome. These parts require care in leveling, noting the
