StoneAge NA72IND User manual

1
Report 307-F-02b-2
Installation and Operation
Instructions
Stone Age Indoor Fireplace
1.0 Introduction
The following provides instructions for the installa-
tion and operation of the Stone Age Fireplace, manu-
factured by Stone Age Manufacturing, Collinsville,
Oklahoma.
Three generations of fireplace knowledge and expe-
rience have gone into the design and construction of
the New Age series fireplaces. New Age Fireplaces
are manufactured to comply with UL127 for the US,
and ULCS610 for Canada. They are also manufac-
tured to comply with ICC-ES AC156 meeting struc-
tural design requirements for Earthquake Testing at a
compliance level of Sds = 2.5g. The ICC-ES AC156
complies with 2010 American Society of Civil Engi-
neers (ASCE) 7-10, 2009 International Building
Code (IBC), 2010 California Building Code and
2012 ICC-ES AC156. Assembly and Cutaway
views of a NA72IND fireplace are shown in Figure
1.
Because of structural modifications required in an
existing home, it is recommended that this fireplace
be installed by a professional installer, or by a build-
er in new construction. Installation by a non-
qualified person may negate the warranty.
Keep these instructions for future use.
2.0 Description
The fireplace is delivered as a kit with all compo-
nents necessary to complete the installation. The kit
is configured for a flue chimney, but a special adapt-
er is available for a metal chimney. Component ar-
rangement, some of which is optional, is shown in
Figure 2. Components are shown in Table 1. Speci-
fications and installation dimensions are shown in
Table 2.
A completed installation should include the follow-
ing:
A. Fireplace items shown in Figure 2 and listed in
Table 1.
B. Damper (sold separately) (Shown in Figure 12).
C. Chimney Cap (sold separately) (Shown in Fig-
ure 24).
D. Fireplace Grate (sold separately) (Shown in
Figure 28).
E. Full firebrick (sold separately)
F. Stone Age Multi-Purpose Ready-Mix Cement
(sold separately).
The Stone Age Fireplace has been manufactured to
comply with UL 127 and ULC S610 standards for
indoor or outdoor use.
This fireplace is designed to supplement your current
heating system. It is not designed to be used as a
primary heat source.
Ensure that appropriate building permits required by
local codes are obtained before installation in an ex-
isting home.
Ce manuel est disponible en français à www.stoneagemanufacturing.com.
This manual is available in French at www.stonea
g
emanufacturin
g
.co
m
.
NA72IND
Front View
Figure 1. NA72IND Fireplace Assembly
& Cutawa
y
View
Side
Cutaway
V
iew

2
Table 1. Fireplace Components
Item Description
1 Base Plate
1C Base Plate Extension
2 Lower & Middle Sidewall
3AL Bottom Back Plate - Left
3BL Bottom Back Plate - Right
3CL Bottom Back Plate – Center Extension
3A Lower Back Plate - Left
3B Lower Back Plate - Right
3C Lower Back Plate – Center Extension
4A Middle Back Plate - Left
4B Middle Back Plate - Right
4C Middle Back Plate – Center Extension
5A Upper Back Plate - Left
5B Upper Back Plate - Right
5C Upper Back Plate – Center Extension
6 Upper Slanted Sidewall - Right
7 Upper Slanted Sidewall - Left
8 Front Header
9 Lower Throat – Right Front
9C Lower Throat – Center Front Extension
10 Lower Throat – Left Front
11 Lower Throat – Left Rear
11C Lower Throat – Center Rear Extension
12 Lower Throat – Right Rear
13 Middle Throat – Right Rear
14 Middle Throat – Right Front
14C Middle Throat – Center Front Extension
15 Middle Throat – Left Front
16 Middle Throat – Left Rear
16C Middle Throat – Center Rear Extension
17 Upper Throat – Right Rear
18 Upper Throat – Right Front
18C Upper Throat – Center Front Extension
19 Upper Throat – Left Front
20 Upper Throat – Left Rear
20C Upper Throat – Center Rear Extension
21 Throat Cap – Left
21C Throat Cap – Center Front Extension
22 Throat Cap – Right
22C Throat Cap – Center Rear Extension
23B Double Flue Adapter
23 (not shown) Masonry Chimney Blocks or Metal Flue Adapters
2.1 Specifications
Table 2: Clearances (See Figure 3)
NA 72 Fireplace
Item Clearance Figure 2
Refer-
ence
Backwall 0
Sidewalls 0 to Appliances
18” from Fireplace open-
ing at points in front of
fireplace
Floor: Non
combustible
extending
as follows
20” when hearth is less
than 6” from floor
18” when hearth is greater
than 6” from floor
A
12” Mantle 60” from hearth B
Top Trim 48” from hearth C
Side Trim 6” from fireplace opening D
Front en-
closure
Non combustible from
hearth up 36.” (E-1)
Combustible 36” from
hearth (E-2)
E
Hearth If the fireplace opening is
6 sq feet or larger, the
hearth shall extend at least
20 inches in front of the
opening and 12 inches
beyond each side. If the
opening is less than 6 sq
feet, the hearth shall ex-
tend at least 16 inches in
front of the opening and 8
inches beyond each side.
Clearance
around
chimney
0” New Age Chimney
Block
2” Metal Pipe chimney
(UL 103 and ULC S604)
F
Chimney
Height
16’ from floor
Note 1: This Fireplace intended for use with solid wood
fuel or vented gas logs.
CAUTION: When using this appliance, the fire-
place damper must be set in the fully open
position.
Note 2: This fireplace has not been tested for use with
glass doors.
Note 3: Do not use fireplace insert or other products not
specified for use with this model. Use a fireplace grate
when burning wood.
Note 4: Clay flue liners installed in flue section meet the
specifications of ASTM Section C315-02.
1
2
2
2
2 3A 3B
4A
4B
5A 5B 6
7
8
9
10
11 12
13
14
15
16
17
18
19
20
21 22
3AL 3CL 3BL
Figure 2. Fireplace Components
3C
4C
5C
9C
11C
14C
18C 16C
20C
21C
22C
1C
1
23B
2
2

3
Note 5: Ensure installation complies with local building
codes.
2.2 Installation of Additional Equipment
WARNING: THIS FIREPLACE HAS NOT
BEEN TESTED FOR USE WITH
DOORS. TO REDUCE THE
RISK OF FIRE OR INJURY, DO
NOT INSTALL GLASS DOORS.
A. Do not install a fireplace insert unless it is tested
with this fireplace.
B. Cutting or drilling a hole into the floor or walls
for gas supply for a vented decorative gas appliance
(log), fresh air venting, or an ash dump, is accepta-
ble.
C. If a decorative gas appliance is installed, it must
be installed in accordance with the National Gas
Fire Code, ANSI Z223.1.
D. It must incorporate an automatic shutoff device.
E. Installation must comply with the Standard for
Decorative Gas Appliances in Vented Appliances,
ANSI Z21.60 (1991) or American Gas Association
draft requirements for Gas-Fired Log Lighters for
Burning Fireplaces, Draft No. 4 dated August 1993.
3.0 Installation of the Fireplace
WARNING: DO NOT USE SUBSTITUTE
MATERIALS IN THE
ASSEMBLY, INSTALLATION
OR OPERATION OF THIS
FIREPLACE. TO DO SO WILL
VOID THE WARRANTY AND
MAY RESULT IN FIRE AND
PERSONAL INJURY.
It is most important that the Stone Age fireplace be
installed according to the following instructions. It is
also important that local building codes be consulted
and followed. Improper installation could result in:
 Overheating, leading to fireplace failure
 Leakage of rainwater through and around
the chimney
 Cracks and settling because of poor founda-
tions
 Emission of smoke, sparks and gases into
the living area
 Combustion of materials adjacent to the
fireplace.
WARNING: THIS FIREPLACE HAS NOT
BEEN TESTED WITH AN
UNVENTED GAS LOG SET. TO
REDUCE THE RISK OF FIRE
OR INJURY, DO NOT INSTALL
AN UNVENTED GAS LOG SET
INTO THIS FIREPLACE.
Do not install this fireplace in a manufactured or
mobile home.
3.1 Preparations
Select a wall location in the home plans where all the
minimum distances, as shown in Table 2 and Figure
3 can be met. Proceed as follows. Numbers in ( )
are item numbers from Table 1 and Figure 2. Ensure
the base on which the fireplace is to be installed is a
solid and level foundation and is composed of non-
combustible material, such as concrete.
Select a high temperature fire clay or refractory ce-
ment and mix according to manufacturer’s instruc-
tions. Several companies in the U.S. and Canada sell
refractory cement or fire clay including Stone Age
Manufacturing.
Figure 3. Clearances (Use with Table 2)

4
Once the fireplace is constructed you must wait at
least 28 days before building a fire to give adequate
time to cure. This will provide ample time for any
water residue to evaporate, eliminating the adverse
reaction of the combination of water and fire.
3.2 Assembly of Components
Components that become broken during shipment
and handling can be mortared back together provid-
ing the breaks or cracks are clean and the original
alignment can be maintained. Components broken
into multiple pieces must be replaced.
If this is your first Stone Age installation, it is sug-
gested that you first assemble the components with-
out mortar to familiarize yourself with how the
components fit together. See Figure 1.
A. Determine the height off the floor you want to
place the base plate (1). The base plate, plus fire-
brick, will be about 5 ½ inches thick. Set cement
blocks under the base plate to obtain the desired
height. Note that holes in many pieces of the kit
allow the placement of rebar and mortar for addi-
tional reinforcement, if desired.
B. When the base is level and square, set the base
plate pieces (1 & 1A). Level it from side to side
and front to back. See Figure 4.
C. Install the bottom sidewalls (2) first, followed
by the bottom back plate pieces (3AL, 3BL, 3CL).
On the second level, install the sidewalls (2) first,
then the back plates (3A, 3B. 3C), so that the joint
lines are offset from the lower level. Use 3/8” joint
of mortar between each section. Smooth out mortar
and ensure sections remain level. Continue with
third level, with sidewalls (2) and back plate pieces
(4A, 4B, 4C) See Figures 5, 6 and 7.
D. Lay a straightedge across the left and right side-
wall to ensure plumb and level are maintained.
E. Install the slanted sidewalls (6 and 7), and the
upper back plates (5A, 5B, 5C). Check the sides
and the top with a level. See Figure 8.
F. After installation of the back plates and side-
walls, install the firebrick inside the firebox, using
1/8-inch mortar joints. Cover the floor first with
1/8-inch high temperature cement. On the side
walls, stand the brick on its sides, and on the back
wall, lay the brick flat, leaving 1/2-inch air space
between the firebrick and fireplaces walls. Stack
brick until it is flush with the tops of pieces 5A, 5B,
6 and 7. See Figures 9 and 10.
Figure 4. Base Plate
2
3B
3A
4A 4B2
2
5A 5B 6 7
1
3CL
2 2
2
Figure 6. Lower Back Plates & Sidewalls
Figure 7. Middle Back Plates & Sidewalls
Figure 8. Upper Back Plates & Sidewalls
Figure 5. Bottom Back Plates & Sidewalls
3AL 3BL
3C
5C
5B
4C

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G. After fire brick installation is complete, install
the front lintel (8).
H. Install the cast iron damper. See Figures 12
and 13. Attach poker handle through damper to
damper door. Set damper on top of firebox with
handle facing toward front of the fireplace. The
bottom lip of the damper should rest on the fire-
brick with the front lip resting on the front header
(8). Mortar damper in place. Ensure the damper
opens and closes properly.
I. Install the first complete ring of four interlock-
ing throat components (items 9, 9C, 10, 11, 11C
and 12). Check with a level. See Figure 14.
J. Install second ring of four throat components
(Items 13, 14, 14C, 15, 16 and 16C). Check with a
level. See Figure 15.
8 9
10
11
12
Figure 14. Lower Throat Level
Figure 11. Front Lintel
Figure 9. Firebrick Installation
Figure 13. Damper Placement
Figure 10. Firebrick Completed
Figure 12. Damper
9C
11C