How to construct “The Rittman” fireplace

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					How to construct “The Rittman” fireplace.
Use only the UL-approved Firerock from Unilock.
Review and check all components
“Dry-lay” components and plan assembly.
Front view of assembled firebox.
Main unit should always sit on concrete foundation
                                         Main fireplace unit:
                                         60”wide by 41” deep
                                         (including Firerock
                                         infrastructure insert).




Main unit should always sit on concrete foundation
Prepare base for hearth and adjoining seat wall.
Compact to maximum density.
Hand tamp in tight areas.
Screed over final bedding course.
Set alignment with chalk line.
Establish right angles.
Begin to construct the initial base of fireplace
with Brussels Dimensional Stone units.
Use an aluminum bar to assist with alignment.
Complete the outline and fill in with Brussels
Dimensional Stone units.
Add three more layers to achieve the desired height.
                                                     Install Hearth 72”
                                                     wide and 4 layers
                                                     high and 8” deep
                                                     with a gap
                                                     between the main
                                                     fireplace base and
                                                     the hearth of 4”.
                                                     This will provide
                                                     room for a hearth
                                                     coping stone 72”
                                                     wide by 16” deep
                                                     and 3” high.




Use Unilock Concrete Adhesive to secure all units.
                                          Firerock insert
                                          set on 4 layers
                                          high (16”) of
                                          Brussels
                                          Dimensional
                                          units with
                                          footprint of 60”
                                          wide by 44”.
                                          Total Brussels
                                          Dimensional
                                          units required is
                                          110.




Use Unilock Concrete Adhesive to secure
the firebox insert base.
Make sure that the base pad is still level and
adjust if required..
Complete any seating walls and prepare the
base for the hearth.
Construct the side walls first. Always follow insert
manufacturer’s recommendations.
Secure and bond all units with refractory cement
recommended or provided by the insert manufacturer.
Use the refractory cement between all joints.
The refractory cement will not crack under
high temperatures.
Check levels periodically. Minor adjustments can be
achieved with the mortar..
All cracks and joints must be sealed.
Remove excess mortar.
Smooth any uneven areas with mortar.
Install the chimney base unit on a bed of mortar.
Always maintain your levels.
Install first chimney section.
Add the final sections. Extra chimney height can
be achieved with additional chimney sections.
Seal any final joints.
Plan your design in measurments that
match the dimensions of the stones
you are using. Always dry-fit everything first.
                                                         Install ½ thick
                                                         fire brick (80
                                                         pieces)on inside
                                                         walls and floor
                                                         using the 2 bags
                                                         of mortar
                                                         provided.




Prepare to install the refractory brick on the inside.
                                                              Use 14
                                                              Brussels Block
                                                              half stones cut
                                                              in half to yield
                                                              28 units.

                                                              Choose the
                                                              stone of your
                                                              choice for the
                                                              keystone.




Arches can be achieved using a temporary support
and joints can be filled with mortar. Use Unilock Concrete
Adhesive to adhere the façade pavers to the main structure.
                                               Unigranite accents (4 - 6 x 6 units)

                                               The Mantel uses 24 units of
                                               a contrasting Brussels
                                               Dimensional Stone.


                                               Unigranite accents (50 – 4 x 4 units)


                                               10 Rows of Brussels Dimensional
                                               Stone




Designs can easily be customized using the extensive
variety of paver and wall designs from Unilock.
                                             Layer     Width   Depth

                                             18”       50”      30”
                                             19”       45”      30”
                                             20”       40”      30”
                                             21”       36”      30”
                                             22”       31”      30”
                                             23”        31      30”
                                             24”       31”      30”
                                             25”       31”      30”




Designs can easily be customized using the extensive
variety of paver and wall designs from Unilock.
                                            Layer 27 is 31” wide by 30” deep
                                            and generally the same
                                            contrasting color as the Mantel.

                                            Layer 26 is 40” wide by 35” deep
                                            and generally the same
                                            contrasting color as the Mantel.




Designs can easily be customized using the extensive
variety of paver and wall designs from Unilock.
Plan your entire design in measurments that
match the dimensions of the stones you are
using. Always dry-fit everything first before glueing.
Materials List for The Rittman:

1 36” Firerock fireplace unit

14 Brussels Block Half Stones for arch

Approximately 80 pieces of ½ “ thick firebrick

22 units of Brussels Dimensional for Mantel

1 Limestone Hearth Stone 72” x 16” x 3”

25 Double units (50 split pieces) of Unigranite 4”x4”

372 Brussels Dimensional units for main body and chimney

20 Brussels Dimensional units for top two courses

3 cases of Unilock adhesive (36 10.5 oz. tubes)
The Rittman