Marco Traditional A41MTR Wiring diagram

INSTALLING & OPERATING
YOUR MARCO WOOD-BURNING
FIREPLACE
CHECK LOCAL CODES PRIOR TO INSTALLATION
ARCHITECT'S 41 " MASONRY FIREPLACES
Patents Pending
OPTIONAL
FEATURES: GLASS DOORS
OUTSIDE AIR KIT
#
792870
792871
792872
THlS MANUAL PROVIDES ALL THE INSTRUCTIONS NECESSARY FOR THE
BUILDER
OR HOMEOWNER TO INSTALL THE ARCHITECTS 41" MASONRY
FIREPLACES SAFELY AND EFFICIENTLY. IT ALSO PROVIDES INFORMATION
ON HOW TO ORDER REPAIR PARTS WHEN NEEDED.
THIS SYMBOL ON THE PROOUCT
MEANS IT iS LlSTED BY
UNDERWRITERS UBOFIATORIES. INC.
MODEL
REFERENCE
A41 MTR
A41 MTU
A41 MC
Ah,,. MARCO MFG., INC., 2520 Industry Way Lynwood, CA 90262
[phone]
DESCRIPTION
ARCHITECT'S 41" MASONRY "TRADITIONAL"
ARCHITECT'S 41" MASONRY "TUDOR"
ARCHITECT'S
41" MASONRY "CUSTOM"

TABLE OF CONTENTS
I . ACCESSORIES ................................................. Page 1
11 . INSTALLATION INSTRUCTIONS
Introduction ........................................................
Selecting Your Fireplace Location .....................................
Clearances .........................................................
.........................................
Fireplace Overall Dimensions
.........
.....................................
Framing Instructions ..
Installation of Air Inlet Assemble ......................................
Examples of Fireplace & Chimney Designs .............................
Sample of MuItipfe Chase Installation ..................................
.............................. How to Determine Your Fireplace System
Chimney Offsets Using Elbows
.......................................
Installing Your Double Wall Chimney ..................................
.................................................. Firestop Spacers
Chimney
Pipe Support ...............................................
Storm Collar .......................................................
Terminations .......................................................
Installing the Gas Line ...............................................
Gas Log tighter Installation ..........................................
Optional Cold Climate Installation .....................................
Page 1
Page
Ilt . FINISHING YOUR FIREPLACE
Fireplace Facing ....................... .. ..........................
Page 14
Hearth Extension ................................................... Page 15
Mantle "Surrounds" ................................................. Page 16
IV . OPERATION INSTRUCTIONS
Damper Control .................................................... Page 17
............................................................
Grate Page 17
Outside
Air Control ................................................
Page 17
Do's and Don'ts ............... ; ....................................
Page 18
Reference Documents ....................... .. ..................... Page 18
Replacement Parts ................................................ Page 19
SAVE THIS BOOK
This book is valuable . In addition to telling you how to install and
maintain your fireplace and chimney. it also contains the inforrna-
tion that will enable you to obtain repair parts when needed . Keep
it with your other important papers .
KEEP YOUR FIREPLACE SAFE
NEVER USE GASOLINE. GASOLINE-TYPE LANTERN FUEL. CHARCOAL LIGHTER FLUID
OR SIMILAR LIQUIDS TO START OR *FRESHEN-UP" A FIRE IN THE FIREPLACE . KEEP
ALL
SUCH LIQUIDS WELL AWAY FROM THE FIREPLACE .

1. ACCESSORIES
FIREPLACE GRATE:
This unit has been equipped with a grate designed lo
keep the operation of your fireplace efficienl and
safe. See Page 17 for operating instructions.
GLASS DOORS:
Bi-fold glass doors can be installed as an optional
accessory. Use
MARCO door kit #793420 or #793421
and refer to the installation instmctions in that kit for
installation details. The glass
doors can be installed
before, during
or after the installation of the fireplace.
THE GLASS DOOR MOUNTS OVER THE FACING
MATERIAL. TO ENSURE PROPER OPERATION,
FACING
MUST NOT PROTRUDE INTO THE FIRE-
PLACE OPENING.
NOTE:
Use of glass doors other than those
manufactured by Marco Mfg., Inc. could create a
potentially hazardous condition and will void the
MARCO warranty.
OUTSIDE AIR:
An optional outside air kil is available for installation.
An outside air kit must be installed during the instal-
lation
of the fireplace (See pages 4 & 5).
The outside air damper mechanism is an integral part
of the
unit.
To complete the outside air kit you must purchase air
inlet eyebrow
#793255 and 4' diameter Class 0 or
Class 1 flex duct (purchased locally).
11. INSTALLATION
INSTRUCTIONS
INTRODUCTION:
This MARCO fireplace and components are safe
when installed according to this Installation Manual.
Unless
you use MARCO components which have
been designed and tested for the fireplace system,
you may cause a fire hazard.
MARCO 41" Masonry fireplaces may be installed in
a conventional home or a prefabricated home.
The MARCO warranty will be voided by, and MARCO
disclaims any responsibility for, the following ac-
tions:
a) Modification of the fireplace andlor components,
including assembly of chimney, glass doors, air
inlet
system and damper control.
b) Use of any component part not manufactured or
approved by MARCO in combination with a
MARCO fireplace system.
c) Installalion other than as inslrucled in this rnan-
ual.
DO NOT USE A FIREPLACE INSERT OR OTHER
PRODUCTS NOT SPECIFIED FOR USE WITH
THESE FIREPLACES.
- PROPER INSTALLATION is the most important step
in ensuring safe, long-term operation of this fire-
place. Consult
the local building codes as to the
particular requirements concerning installation of all
factory-bui
It fireplaces.
SELECTING YOUR
FIREPLACE LOCATION
To determine the safest and most efficient location for
your fireplace,
consider such factors as room traffic,
Iocation of doors and windows, and construction above
and below the installation area. The fireplace may be
installed in any location that is free of air conditioning
ducts, electrical wiring, and plumbing. This location
must also provide
the necessary clearances,
+ Before beginning the installation of your fireplace,
read through
these instructions and the instructions
contained in the separate Operation Manual.

LOCATION
Corners shoutd be consideredwhere space is limited or
at a premium. A corner-installedfireplacecan make use
of space that may not normally be used (see Figure 1).
PROJECTION
FIGURE 1
LOCATlON AND INSTALLATION
. A fireplace may be installedflushwith the linishedwall
or projecting any distance into the room. Flush
installation is recommended for
srnoolh or thin wall-
facing materials. By installing
the fireplace to project
into the room, a shallower cavity is required fo contain
the fireplace; thicker natural materials, such as field
stone, can then be used for face material.
A location that requires cutting the least number
of
joists, roof rafters, and floor joists will reduce costs
and make installationeasier. This may mean moving
only one
or two inches from the selected ideal loca-
tion. Any location selectedmust allow adequate room
to accommodate the fireplace and framing
dirnen-
sions shown in Figures 4, 5 & 6.
SEE FIGURE 1 FOR LOCATION EXAMPLES.
WHAT-
EVER LOCATION IS CHOSEN, ACCESSIBILITY TO
OUTSIDE COMBUSTION AIR
SHOULD BE CONSID-
ERED. (SEE PAGE 5).
Do not place the fireplace on soft-surfaced floor cov-
ering such as carpeting. The mounting surface must
be flat and hard (such as plywood, wood flooring,
particle
board or any other hard-surfaced material),
and evenly support the total base of the fireplace. A
raisedplatform may be used to support the fireplaces.
When a fireplace is installedon a combustible floor, a
non-combustible hearth extension
must be provided
to protect the floor in front of the opening. (Refer to
Hearth Extension, Pages 15 & 16).
CLEARANCES
A fireplacemust not be installedcloser than 20 inches
to any unprotected combustible wall perpendicular to
the door opening (Figure 3).
. When a 24" W x 36" H wall shield made from a non-
combustible inorganic materia! with thermal conduc-
tivity
K of .54 or less is used, clearance may be
reducedto
14 inches. See table (Figure 36 Page 15)
for common materials which can be used as wall
shield.
. When installed in accordance with the instructions
given
in this manual, the fireplace system may touch
combustible materials at
the bottom. 2" clearance is
required
on sides arid back of fireplace, except at the
nailing flange, where clearance is 0". The chimney
system requires 2" minimum air space.
. Combustible materials should not be in contact with
mounting flange
of upper frame.
WARNING: DO NOT PACK REQUIRED AIR SPACES
WITH INSULATION OR OTHER MATERIALS.
1 2" MIN.
NAlLlNG RANGE
FIGURE 2

FRAMING INSTRUCTIONS
C
If framing around the fireplace is designed to incorpo-
rate book shelves, wood bins, closets, etc.. these should
not project beyond the safety zone (Figure 3).
BLACK PORTION OF FRAME
NOT TO BE COVE RED WITH
COMBUSTIBLE MATERIALS
FIGURE 3
/ 2" MIN.
U*
NOTE: SEE RGURE 5 FOR fRONT VIEW OF FRAMING.
FIGURE 4 - FRAMING DIMENSIONS

INSTALLING YOUR FIREPLACE
METAL SAFETY STRIP-OFFSET
(SUPPLIED BY OTHERS)
STEP 1 : Frame the cavity of opening for the fireplace
at the chosen location
(Figure 6). Move the fireplace When
the fireplace and hearth extension are not in-
into position and install false header and metal safety stalled at
the same height a custom safety strip will
strips (provided) under the fireplace as shown in
be required.
The safely strip shall be constructed of
Figure 7.
a minimum thickness of .Dl8 galvanized steel and
should be shaped as shown in Figure 8.
SOH' MIN.
FIGURE 6
FRAMING DiMENSIONS
1
IN. OVERLAP
FIGURE 7
AS REQUIRED
BY DESIGN
FIGURE 8- METAL SAFETY
STRIP-OFFSET
OUTSIDE COMf3USTlON AIR
The instaIlation of an outside air accessory kit is highly
recommended.
It is very important to assure good
fireplace operation in homes which are tightly weath-
ersealed
or have ventila ling appliances installed.
Determine the
source for outside air, which can be
installed through an outside wall (Figure 8A) or into a
ventilated crawl space (Figure 11). In either case, a 4-
1/2 diameter hole will be requiredfor installation of the
air inlet assembly. CAUTION: Avoid installing the air
inlet where
the opening could be blocked by snow,
bushes, or other obstacles. The maximum height tor the
outside
air is 50' above the hearth, providing air inlet is
terminated
a minimum of 3 feet below chimney cap
level.

NOTE: COMBUSTION AIR INLET DUCTS MUST NOT VENTILATED CRAWL
TERMINATE IN AlTlC SPACE.
SPACE INSTALLATION
COMBUSTION llmTmk
AIR INTAKE
I
INSTALLATION VENTlLATED CRAWL
FIGURE 8A
SPACE INSTALLATION
(OPTIONAL)
I
OUTSIDE WALL INSTALLATION
STEP 1 : A 4-112" diameter opening will be required for
installation
of the air inlet assembly. Cut hole where no
obstructions are expected, Install the air inlet assembly
through
floor opening. Secure assembly to floor. Slip
flexible
duct onto air inlet assembly collar. Secure
flexible duct to collar with
a hose clamp. (Figure 10).
STEP I: A 4-112" diameter opening will be requiredfor
installation
of the air inlet assembfy. Cut hole where no
obstructions are expected.
STEP 2: Slip the other end of the air duct onto collar.
protruding
from the right side of the unit. Secure duct
Install the air inlet eyebrow through wall opening. with
screws or hose clamp.
Secure eyebrow
to exterior wall. Push flexible duct onto
eyebrow collar until it secures into lances. (Figure 9).
AIR INLET
- 4" AIR DUCT
FUPPUED BY CUSTOMER)
STEP 2: Slip the other end of the air duct onto collar,
When the air duct is connected to the unit remove
protruding from the right side of the unit. Secure duct
security bracket preventing outside air damper rcd to
with screws or hose clamp.
rotate, as shown in Figure 11.

EXAMPLES OF FIREPLACE
AND CHIMNEY DESIGNS
.
FIGURE I2
I I
FIELO CHASE
CHASE INSTALLATION

INSTALLATION ON FIELD CONSTRUCTED CHASE
ROUND TOP
CHASE TOP
36- MiHIMUM OR 2
FEET ABOVE HIGMESf
METAL SPACERS(4)
OR EQUIVALENT
2 I 4 FRAMING
CONTINUOUS SPACER MADE
FROM NOH-COMBUSTIBLE
MATE RIAL WllW Kz.54
FIGURE 17
TRIM STYLE TOP
HAS€ FLASHING
ield
Constructed)
CONTINUOUS SPACER MADE
FEET ABOVE HIGHEST
POINT WITHIN 10 FEET
CONSTRUCTED
CHASE
2 x 4 FRAMING
FIGURE 18

INSTRUCTIONS FOR
OFFSET OF CHIMNEY
USlNG ELBOWS
TO INSTALL ELBOWS
1. To achieve desired offset, you may install combina-
tions of 12", 18", 36"+ lengths of double wall pipe
(see single offset chati and Figure 20A).
2. Chimney weight above offset resls on return elbow.
Straps must
be securely nailed to rafters or joists. (See
Figure 20B).
3.
Maximum length of pipe between supports (return
elbow or chimney pipe support) is 6' of angled run.
Maximum of two 6' angled run sections per chimney
system. (Figure 20C).
4. The maximum allowable offset is 30'. Elbows musl
be secured to the pipe utilizing a minimum of three
screws per joint. Fasten screw through outer pipe slot.
Drill
118" pilot hole or use self-drilling screws provided.
FIGURE 208
CHIMNEY DETAIL A
PIPE
DETAIL B
FIGURE 20C
OFFSET
ELBOW
RETURN
ELBOW
OFFSET
OFFSET
ELBOW
CHIMNEY
I
TYPICAL OFFSET INSTALLATION I

INSTALLING YOUR
DOUBLE-WALL CHIMNEY SYSTEM
BEFORE YOU BEGIN INSTALLING YOUR DOUBLE FIRESTOP SPACERS
WALL CHIMNEY SYSTEM DETERMINE HOW MUCH
PtPE AND ACCESSORIES YOU WILL NEED.
SEE
firestop spacers are required at each point where the
PAGE 6 FOR EXAMPLES Of CHIMNEY AND TERMI-
chimney penetrates a floor or ceiling joist space.
Their
NATION
DESIGNS. purpose is twofold: they eslablish and maintain the
required clearance betwekn the chimney and combus-
tible materials, and they provide complete separation
from one floor space to another floor or attic space, as
Each double-wall chimney section consists of an outer
required by most codes.
When penetrating a floor or
pipe, flue pipe and single-piece
wire spacer. The pipe ceiling
at an angle, either the 15' or 30' firestop must be
sections are not unitized and must be assembled inde-
used. (See Figure 22).
pendently as the chimney is installed. (Figure 21).
FIGURE 21
INNER PIPE +zsZ(
RESTOP SPACER
Ifpipe passes through a framed opening between floors,
install a firestop spacer to the bottom of the joists
(Figure
22). When pipe passes into the attic space,
installthe firestop spacer on the top of the joists (Figure
23) and secure with sheet metal screws or nails.

CHIMNEY PIPE SUPPORT
The chimney pipe support is a double-wall, unitized 12"
length of pipe and is designed to relieve the extra weight
toad on the fireplace and elbows when high chimneys
are installed.
A CHIMNEY SUPPORT IS REQUIRED AFTER A
STRAIGHT CHIMNEY RUN OF 35 FEET ABOVE FIRE-
PLACE OF RETURN ELBOW. (Figure 24).
FIGURE 24
CHIMNEY
1 B:tpE + SUPPOT
- TOP OF FIREPLACE
WlTH STRAIGHT
CHIMNEY
STEP 1: When stailing the chimney install the inner
pipe section by fitting the male end into the inner
fireplace
starting collar. Make sure the male end is fully
inserted to lock into the lances. (Figure 25).
STEP 2: Fit the outer galvanized pipe with spacer into
starting collar on top of fireplace.
Rotate the outer pipe
until wire spacer locks snap through the outer pipe slots.
(Figure 25).
I
FIGURE 25
STEP 3: tf you are remodeling, cover exposed pipe and
cut a 20" hole on ceiling directly abve center of chimney
pipe (Use Plumb Bob).
Continue
to assemble chimney
sections as outlined
above, making sure that both inner and outer seaions
are
locked together.
STEP 4: Determinethe location of the hole to be cut in
the roof. The roof hole cut-out depends on the pitch of
the roof, so refer to the chart on Figure 26.
FIGURE 26
CEILING OPENINGCHART
CHIMNEY
SET UP
VERTICAL
15"OfFSET
3O0OFFSET
ROOF OPENING CHART
PITCH
FLAT
6/12
12/12
1W12
RECOMMENDED
FLASHING
USE
FIRESTOP
PART NO.
792990
7931
02
792969
1
OPENING
ROOF
PITCH
0 - 6/12
6-12/12
12 18/12
118-24/12
A
19 112
191/2
19 112
OPENING
FLASHING
PART NO.
792975
792976
792977
792978
B
19 112
22114
27
C
19 112
19 t/2
19 112
19 112
0
19 112
22
273/4
35
1/2
43314
24/12 19112

ROOF JOIST SHIELD
STEP 5: After cutting the hole in the roof, uncover the
STEP 8: Place flashing into position on unshingled root.
pipe and add sections unlil the chimney extends a Hold in position by nailing shingles in place over the
minimum of 14 inches above the highest point of the roof flashing edges.
cutout. (Figure 27).
STEP 9: Install storm collar on the chimney and push
down near the top of the Ilashing. Apply waterproof
caulking
aroundthe top of the storm collar. (Figure 29).
STEP 6: Slide the roof joist shield over the outer pipe.
It must be positioned to cover the joist at ail points
around
the chimney pipe. It may be necessary to trim
the shield slightly to
match the slope of the roof. Attach
the shield
to the joists using the straps provided. (See
Figure 27).
-
FIGURE 29
CAULK
STEP 7: Position the flashing over the chimney and flat
on the roof. Mark an outline of the flashing on the roof
and remove the flashing, Remove all nails within the
outlined area. (Figure
28).
7
FIGURE 28
0
STEP 10: Install terminalion on last section of pipe.
There are differenf terminafions approved for this chim-
ney system. The Round Top Long is adjustable to
compensatefor height variations.
The Trim Style Top is
designed to
be used on a chase installation of decora-
tive chimney enclosure only. For details, consult the
installation instructions of the termination being used.
(See Figure 30).
FIGURE 30
1
NOTE: You may wish to caulk seam notches on all
joints
above the flashing and paint all exposed parts of
the
chimney with galvanized primer paint. A coat of
paint lo match the house may then be applied.

INSTALLING THE GAS LINE
STEP 5: Seal hole around gas line on refractory wall
with cement or
any other non-combustible
IMPORTANT: Install the gas line before finishing the material. (Figure 33).
fireplace. Ifdesired, a decorative gas appliance may be
installed. Use only iron pipe, 112" size, and appropriate STEP
6: Finish installation by either capping the gas
fittings. When installing gas line, a valve designed for
line or attaching a gas log,
installation outside the fireplace is required (Figure 31).
CAUTION: WHEN USING THE DECORATIVE
The unit is shipped from Ihe factory ready for installa-
tion. The
gas line may be installed to enter the fireplace
from either side. Refer
lo Figure 5 for hole location.
The gas line is intended for connection to a decorative
gas appliance incorporating an automatic shutoff device
and complying with the Standard for Decorative
Gas
Appliances for Installation in Vented Fireplaces, ANSl
221.60 Decorative gas appliance should be installed in
accordance with the National Fuel
Gas Cde. ANSl
2223.1. and NFPA 54.
BEFORE DOING ANYTHING, MAKE SURE THE GAS
VALVE LOCATED OUTSIDE YOUR FIREPUCE IS
SHUT OFF.
STEP 1: Remove gas line cover. Save screws. Re-
move insulation from inside gas conduit
sleeve. Save insulation.
t
SLEEVE ,
SCREWS
SIDE -GAS LINE
STEP 2: With gas line conduit sleeve in place strike the
back of
the refractory using a light punch.
STEP
3: Install a 7 inch minimumnippleto reach inside
the fireplace. Allow enough thread to install
cap (or elbow if continuing installation).
STEP
4: Repack insulation into conduit sleeve all
around nipple. Replace screws. (Figure
32),
APPLIANCE THE FIREPLACE DAMPER MUST
BE SET IN THE FULLY OPEN POSITION.
THIS INSTALLATION IS NOT LISTED BY
UNDERWRITERS LABORATORIES, INC,"
RADCO LAB. in accordance wIth ICBO require-
ments
and is approved for use with this fireplace
model.
INSTALLATION OF GAS
LOG LIGHTER
IF YOUR FIREPLACE IS PROVIDED WITH A GAS
LINE FOR ATTACHMENT TO A GAS LOG LIGHTER,
PLEASE FOLLOW THESE INSTRUCTIONS CARE-
FULLY.
1) BEFORE DOING ANYTHING, MAKE SURE THE
GAS VALVE LOCATED OUTSIDE YOUR FIRE-
PLACE IS SHUT OFF.
2) REMOVE THE CAP AT END OF GAS PIPELINE
PROTRUDING
FROM SlDE OF THE REFRAC-
TORY.
(SEE FIG. 33).
3) CONNECT FITTINGS:
TWO - 112 INCH DIA. 45" ELBOW
ONE
- 112 INCH DIA. CLOSE NIPPLE
4) INSTALL GAS LOG LIGHTER MAX. 24' LONG.
1/2 INCH DIAMETER TO ELBOW. (SEE FlG.33)
GAS LOG LIGHTER MUST BE INSTALLEDFLUSH TO
ME HEARTH FLOOR OF YOUR APPLIANCE. DO
NOT ELEVATE GAS LOG LIGHTER.
YOUR
GAS LOG LIGHTER IS NOW READY FOR USE.

TEST FOR GAS LEAKS 1
All gas piping and connections must be tested for
leaks after the installation is completed. Be
sure
gas valve is turned on. Apply soap suds solution
to all connections and joints.
If bubbles appear,
leaks can be detected and corrected. 00 NOT
use a match or open flame of any kind to test for
leaks. Never operate
any appliance with leaky
connections.
CAUTION:
1) MAKE SURE THE DAMPER tN YOUR FIREPLACE
IS SET IN
A PERMANENTLY OPEN POSITION IN
CASE THE GAS VALVE IS TURNED ON BY ACCI-
DENT,
BY FOLLOWING THIS SIMPLE INSTRUC-
TION,
YOU WILL PREVENT GAS FROM ESCAP-
ING INTO YOUR LlVtNG
ROOM AND CAUSING
POSSIBLE SERIOUS INJURIES
OR DAMAGE TO
YOUR DWELLING.
2) TURN ON GAS VALVE.
3) LIGHT LOG LIGHTER WlTH A MATCH. USE
COMMON SENSE IN LIGHTING. FOR YOUR
SAFETY, NEVER USE 08STORE GASOLINE
OR
OTHER FLAMMABLE LIQUIDS IN THlS OR ANY
OTHER APPLIANCE.
4) AFTER YOUR LOG HAS STARTED TO BURN,
TURN OFF GAS VALVE. THE KEY USED FOR
TURNING THE
GAS VALVE ONlOFF SHOULD BE
KEPT OUT OF REACH OF CHILDREN.
5) TO RESTART, REPEAT RELIGHTING INSTRUC-
TIONS.
6) KEEP ORIFICES CLEAN FROM ASHES AND
DEBRIS. THlS WlLL PREVENT THE ORIFICES
FROM BECOMING CLOGGED. CLEAN IT ONLY
WHEN COLD.
NEVER
ALLOW GAS TO RUN UNLIGHTED. IF THlS
HAPPENS,
THERE IS A POSSIBILITY OF GAS ES-
CAPING INTO YOUR LIVING AREA. IF YOU SMELL
GAS, OPEN WINDOWS, EXTINGUISH ANY OPEN
FLAME AND IMMEDIATELYCALL YOUR LOCAL GAS
SUPPLIER.
NEVER LEAVE CHILDREN ALONE NEAR
THE APPLIANCE WHEN IN USE. REFER
TO IN-
STRUCTION MANUAL FOR
OTHER INSTRUCTION
DETAILS.
KEEP THESE INSTRUCTIONS FOR FUTURE REF-
ERENCE.
COLD CLIMATE INSTALLATION
If you live in a cold climate, it is especially important to
seal all cracks around fireplace with non-combustible
material and wherever cold air
could enter the room.
Surround material
must be caulked where it meets the
black metal facing of the fireplace
to avoid cold air
intrusion. Use only non-combustible caulking material
on fireplace facing to seal.
In areas
of extreme cold, it is recommended that the
outer wall of the chase be insulated. This will reduce the
possibility of cold air convection currents on the fire-
place. NEVER use blown-in type of insulation as this
could plug the holes at the base of the unit and interlere
with the thermalsyphoning action necessaryto keep the
chimney cool.
FINISHING THE
FIREPLACE
FIREPLACE FACING
When selectingthe finish material for your fireplace, it is
important to remember the following: THE BLACK
FACE OF THE FIREPLACEMUST NOT BE COVERED
WlTH ANY TYPE OF COMBUSTIBLE MATERIAL.
Non-combustible facing material
such as tile, brick,
glass, etc. may overlap the black face of the fireplace.
Be sure to use non-combustible heat resistant mortar or
adhesive
when attaching to fireplace face. The face of
the fireplace may be painted to match the mom decor
provided you use a heat resistant paint.
NOTE: DECORATIVE FACING MUST
NOT EXTEND
INTOTHE FIREPLACE OPENING AT ALL, BECAUSE
IT
WlLL INTERFEREWlTH THE OPERATIONOF THE
GLASS DOORS. THE GLASS DOOR MOUNTS OVER
ME FACING MATERIAL. THE MOUNTING HARD-
WARE PROVIDED
WILL ALLOW INSTALLATION TO
FACING MATERIAL
OF O" TO 5 IN WIDTH.

HEARTH EXTENSION:
EXAMPLE OF DETERMING HEARTH EXTENSION
EQUIVALENT
If there is a combustible floor construction in front of the
fireplace, a heaRh extension is required to prolect it.
The hearth extension, as shown in Figure 35,must be a
minimum of 20" deep by 65" wide and extend a minimum
of 12" beyond each side of the fireplace opening.
FIGURE 35
The hearth extension must be made from a non-com-
bustible inorganic material with
a thermal conductivity,
K of .27 or less. The thermal conductivity, K or thermal
resistance.
R of materials can usually be obtained from
the manulacturer.
The factors are related by the for-
mula K = -,!, The thickness required for various common
materials and their factors are shown
in Figure 36.
FIGURE 36 - COMMON MATERIALS
AND THEIR FACTORS
To determine the thickness required for any material:
K new material x 1" = Thickness Required
.84
Example for Insulating Board-K-FAG 19 (K trom Figure
36).
Whatever the material used, sufficient thickness must
be laid down to maintain an equivalent K factor.
The thermal insulating layer may be covered by any
non-combustible material such
as metal, tile, slate,
brick, glass, concrete, marble, or stone. When using
a
low density insulating material a supporting metat cover
such
as shown in Figure 37 should be fabricated and
installed. NOTE: Some non-combustible coverings
such as metal, slate, sandstone and marble are rela-
tively
gcad conductors of heat and rnusl be used in
combination with the more thermally resistant materi-
als.
In finishing up the hearlh extension, be sure to fasten it
securely to the floor to prevent shifting, and seal the gap
between the fireplace frame and the hearlh extension
with a non-combustible material (see Figures 38 & 39).
METAL COVER DESIGNCONSlSTS
OF A TOP AND 4 SIDES
AS REQUIRED
BY DESIGN NOTCHCORNERS THEN
BEND FLANGES $0'.
65" MIN.
MATERIAL 318 MIN.
THlCKNESS GALVANIZE0 2O"MIN.
OR ALUMINUM STEEL
FIGURE 37- METAL COVER
CONSTRUCTION
NON-COMBUSTIBLE DECORATIVE COVERING:
Should be at least 3/8" thick and meet Iccal building
code requirements. The finished height of
the hearth
extension must not block the inlet grille at the bottom
of
the fireplace.

IV. OPERATfNG INSTRUCTIONS
DAMPER CONTROL LEVER
The damper control lever located inside the lop front of
the firebox
has been engineered lo provide safe opera-
tion of your fireplace.
Do not close the damper in an
attempt to reduce
a large fire. To do so may cause a
potential smoke hazard, just as any fuel-burning appli-
ance would do
if not properly exhausted. If you forget to
open the damper before you start your fire (you will know
immediately
by the smoke entering your home,)! simply
move the damper fever from its closed position notch to
the open posifion (Figure 42).
The fireplace flue damper must always remain open
unlil the fire is totally out.
Partially burned logs can
appear lo be out even
when still burning and giving off
dangerous gases. If
the damper is closed too soon,
these gases may escape info the room.
1 FIGURE 42 1
FIREPLACE GRATE:
This unit has been equipped with a gray; to keep the
operation of your fireplace efficient and safe. Do not
attempt to defeat its purpose. The size and position
of the grate was engineered to give the ideal combustion
characteristics for the lire.
By keeping your @s within
the grate and not on
the hearth, you will prevent the
chance
of a log "spill" or roll out of the fireplace. DO
NOT OVERLOAD THE FIREPLACE. Piling excessive
wood on your grate will not increase efficiency
and could
possibly cause smoke to enter your room Keep the
hearth area under the grate free of excessive ash bvild-
up to allow a free flow of air for
the fire.
OUTSIDE AIR CONTROL
The outside combuslion air kit is an oplional accessory
installed at the time of fireplace installation.
It aids
greatly
in the efficient operation of your fireplace. It
should
be opened during operation as shown in Figure
43.
OPEN \
1 FIGURE 43
I
Outside air drawn into the fireplace supplies air to the
fire for combustion. When the fireplace is not in use,
close
the air gate lo prevent cold air from entering your
home. For outside
wall installation check the intake
screen inside eyebrow periodically to insure it is clear of
debris,

FIREPLACE AND HEARTH EXTENSION
ON COMBUSTIBLE F LDOR
OPnOHUNOM-COMBUS
DECORATIVE CWERIAG
COUBVSTlSLE
FLOOR COVERIHC
METAL
SAFETY
HURM EXTEHSIOH
Fl G U RE 38
OR EOUIVALEUT
If a raised headh is constructed, the hearthmust be buitt
out of completely noncombustiblematerials. The height
of the raised hearth cannot extend above the bottom
edge of the fireplace opening.
1 Lrrrau
Hum DmwslOW -SAFEr?
FIGURE 39
OR EaUlVMENT Sf"P-OFFSET
-
WARNING:
HEARTH EXTENSION IS TO BE INSTALLED ONLY
AS ILLUSTRATED. FIGURES 35 THRU 39 SHOW OP-
TIONAL INSTALLATIONS.
MANTLES
1 i
FINISHED WALL
COMBUSTIBLE
- FALSE HEADER
NON-COMBUSTIBLE _/
DECORATIVE FACING
(DO NOT OVERLAP /
SEAL AMY GAP WITH
THE OPENING)
STEEL NON-COMBUSTIBLE
LlKTEL MATERIAL
I FIGURE 40-NON COMBUSTIBLE FACING
)
Combustible mantles may be safely installed provided
they do
not project beyond safety zone as illustrated in
Figure
40.
NOTE: Use an "L" shaped piece of metal (lintel) across
the top of the fireplace opening when a non-combustible
material
is used on the face of the fireplace. It can be
attached to the face of the fireplace with screws (see
Figure 40).
MANTLE SURROUNDS
Often a decorative surround or verlical
rtion of the
P"
mantle is desired. If this is constructed o any wmbus-
tible materialit must be
within the safe zone indicatedin
Figure
40.
BLACK PORTION OF FRAME
NOT TO BE COVERED WIM
COMBUSTlBLE MATERIALS
r
v EXAMPLE OF
COMBUSnBLE MANTLE
WITHIN SAFElY ZONE
FIGURE 41- -
If the fireplace design incorporates a mantle with side
legs, book shelves, wood bins, closets, etc., Ihese
should not project beyond the
safety zone shown in
figure 41.