13
Fireplace Assembly Procedures
TOOLS NEEDED FOR INSTALLATION:
• One 4 ft. level
• Roto-hammer with ½” drill bit
• Drill motor with mixer blade to mix Mortar
• Two empty 5 gallon buckets to mix Mortar
• One wheelbarrow
and shovel to mix concrete
• Grout bag
• Triangular masonry trowel
• Rubber hammer
• Sponge and 2 water buckets to wipe down and moisten
parts prior to applying mortar
MATERIALS NEEDED FOR INSTALLATION:
• Epoxy for securing rebar in footing / foundation
• Three (3) - 90 lb. bags of ready mix concrete with ¼” or
smaller aggregate
MATERIALS INCLUDED:
• 8 - ⅜” Rebar x 28” Long
• 8 - ⅜” Rebar x 12” Long
• 1 - 50 lb. bucket Mortar
• 20 - Small Wood Shims
Note
- Wipe excess water from surface prior to applying grout.
This will help grout to adhere to surface during assembly.
Warning:
All surfaces where grout is applied must have
water sponged on several minutes prior to assembly. This will
minimize cracking of grout joint and provide maximum strength.
Place the Grand Meridian Fireplace hearth base on top of your
non-combustible floor. For concrete slabs, supporting floor
needs to be rated at ASTM 90.
1) Draw an outline of the hearth area based on the dimensions
shown in
Figure 17
. Position Hearth slabs and mark rebar
center locations. Drill 4 inches into concrete slab and secure
the 8 pieces of 12 inch rebar with epoxy.
Figure 17
Left Side Hearth 2nd
Right Side Hearth 1st
Model
W
MM39VF
43”
MM44VF
48”
MM49VF
53”
W
28”
Apply mortar
between joints
12 inch rebar
2) Mix a batch of mortar and prepare Right Side Hearth bottom
surface to be bonded as shown in
Figure 18
.
Figure 18
1/2” AWAY
FROM EDGES
1/2” MORTAR
BEAD TYPICAL
Hearth section shown prepared
for Right Side position
APPLY MORTAR
BEAD TO ALL
MATING SURFACES
3) Align Right Side Hearth to the outline created. The overall
width should allow for an approximate gap of 1/8” between
slabs for the additional mortar to unite the remaining slab.
Check for surface flatness, level if necessary.
4) Apply mortar to the remaining Hearth except this time apply
beading on surface to be facing floor as shown in
Figure
19
.
Figure 19
Hearth shown prepared
for Left Side position
5) Before installing side walls, confirm placement of outside
combustion air access (if required), this can be installed
either side depending on which side is accessible to outside
combustion air (all diagrams in this manual show the
combustion air inlet hole on the right side). Prepare side
wall and rear wall mating surfaces with the prepared mortar
and begin assembly.
Figure 20
Side Wall shown prepared for Right Side Air
Access. For Left Side bead opposite side.
1/2” AWAY
FROM EDGES
6) Keep the assembly of the next sections of the firebox side
walls moving up, keeping components moist, mixing mortar
as you need it and threading the mortar appropriately as
you stack each section, one onto the next. Constantly check
for squareness and levelness while building each course of
block. As you complete each section, make certain that you
adhere the mortar at each and every joint.
