
23
14.
TFS/OFS-39/44/49:
After the
third row
of firebox is complete,
place #3 rebar (8 each, 36 inch long) vertically through the
cells until they reach bottom. Position them adjacent to the
rebar or all-thread sticking up from the hearth as shown in
Figure 34.
Figure 34
Add rebar to cells
and fill with mortar.
12 inch
rebar or
all-thread
15. Install Downdraft Diverter and final row of Side Walls
(Fig.35). All components must be level. Mix approx. 2 cu. ft.
of Ready-Mix Concrete. Insert 28” rebar vertically through
the cells, into the holes in the hearth, adjacent to the rebar
and/or all-thread sticking up from the hearth. Fill all cells
with Ready-Mix Concrete mix.
Figure 35
Downdraft Diverter
(Smoke Shelf)
16. Set the Lintel, T-Bar, Lintel Front and Lower Rear Dome as
shown in
Figure 36
. Check that all is level. If adjustments
are needed, use shims and fill gaps with an appropriate
amount of mortar.
Note:
Although you are cautioned to use Burntech® 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.
Important:
Adjustments can only be made while the mortar
is still wet when correcting for squareness and leveling.
Figure 36
Lintel
Lower Rear Dome
T-Bar
Lintel
Front
Apply mortar
to all mating
surfaces
17. Assemble Lower Dome Sides as shown in
Figure 37
. The
beveled face lines up with the inward angles of the lintel
sides. Resulting top surfaces should be level.
Figure 37
Lower Dome Sides (Rating
Plate faces inside)
18. Verify that the Smoke Dome side, front and rear walls are
aligning correctly and that mating surfaces are smooth
and uniform. Make sure connections are covered with an
adequate amount of mortar. Remember that you have the
option of using shims but they must be removed and any
holes filled. Make any adjustments to the fireplace alignment
before continuing to the next step.
19. Assemble Upper Dome and Dome Sides as shown in
Figure 38
. The top surfaces of all dome parts should be flat
and level.
Figure 38
Upper Dome Sides
Upper Dome
Front/Rear
20. Finally, set the Dome Top into position. Be sure that it is
flush in every direction as you place it on the crest of the
smoke dome wall assembly.
Note:
The chimney hole on the Dome Top is not centered from
front to back - it should be offset closest to the rear of the
fireplace (see
Figure 39).
Figure 39
Center of chimney hole is
offset towards the rear.
Marker indicates
front of Dome Top.
TFS/OFS-39/44/49 Fireplace Assembly
Содержание OFS-33
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