Superior Indoor Fireplace BC 36 User Manual

INSTALLATION  
INSTRUCTIONS  
STANDARD SERIES  
36" Wood Burning Fireplaces  
P/N 700,040M REV. A 02/2008  
MODELS  
BR-36  
BC-36  
BRI-36  
BR-36-2  
BCI-36  
BC-36-2  
This installation manual will enable you to obtain a safe, efficient and  
dependable installation of your fireplace system. Please read and under-  
stand these instructions before beginning your installation.  
Do not alter or modify the fireplace or its components under any  
circumstances. Any modification or alteration of the fireplace system,  
including but not limited to the fireplace, chimney components and  
accessories, may void the warranty, listings and approvals of this system  
and could result in an unsafe and potentially dangerous installation.  
IMPORTANT! TO ASSURE PROPER ALIGNMENT OF GLASS DOORS:  
INSTALL THIS FIREPLACE IN A SQUARE AND PLUMB CONDITION,  
USING SHIMS AS NECESSARY AT SIDES AND/OR BOTTOM.  
RETAIN THESE INSTRUCTIONS  
FOR FUTURE REFERENCE  
OTL Report No. 116-F-43-2  
US  
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The"C"modelsaredesignedasheatcirculating  
fireplaces and may be fitted with accessory  
fans.  
When complete these fireplace systems con-  
sists of four basic sub-systems:  
PRECAUTIONS  
Note: These fireplace systems are not difficult  
to install. However, in the interest of safety, it  
is recommended that the installer be a quali-  
fiedorcertified“tradesman” familiarwithcom-  
monlyacceptedfireplaceinstallationandsafety  
techniques as well as prevailing local codes.  
1. The Fireplace  
The BRI and BCI models are fully insulated for  
installation in colder climates.  
2. The Chimney and Termination  
3. The Optional Glass Doors  
4. The Optional Combustion Air Kits  
WARNING: MODELS THAT HAVE THE  
"-2" SUFFIX HAVE NOT BEEN TESTED  
WITHANUNVENTEDGASLOGSET. TO  
REDUCE RISK OF FIRE OR INJURY, DO  
NOT INSTALL AN UNVENTED GAS LOG  
SET INTO THIS FIREPLACE.  
CLEARANCES AND HEIGHT  
REQUIREMENTS  
The most important areas of concern dealing  
with the installation of factory-built fireplaces  
areclearancestocombustiblematerials,proper  
assembly of component parts, height of the  
chimney system, the proper use of accesso-  
ries supplied by the manufacturer and the  
techniques employed in using finishing mate-  
rials applied to the wall surrounding the fire-  
place,hearthextensionsandwallshields.Each  
of these topics will be covered in thorough  
detail throughout this manual. Please give  
each your special attention as you progress  
with your installation.  
The fireplace may be placed on or near normal  
construction materials*. The combustion air kit,  
firestop spacer and roof flashing (not chase  
flashings) may be placed directly on or against  
normal construction materials.* The chimney  
andfireplaceouterwrapperrequireaminimum  
1"** air space to combustibles. A combustible  
mantlemaybeinstalled12"abovetheopeningof  
the fireplace as per NFPA 211, Section 7-2.3.3  
(1992). InCanada,theminimumis18"abovethe  
fireplace opening.  
Note: Illustrations shown reflect typical”  
installations with nominal dimensions and  
are for design and framing reference only.  
Actual installations may vary due to indi-  
vidual design preferences. However, always  
maintain minimum clearances to combus-  
tible materials and do not violate any specific  
installation requirements.  
The minimum installed height of the completed  
fireplacesystemis15' 0". Themaximumheight  
is 60' 0".  
INTRODUCTION  
General Information  
Thesefireplaceshavebeentestedandlistedby  
Omni Test Laboratories (Report No. 116-F-43-  
2) to U.L. standard 127. These units are in-  
tendedforinstallationinresidentialhomesand  
other buildings of conventional construction  
including commercial, not in mobile homes.  
These fireplaces are conventional radiant heat  
fireplaces with standard bar grates, optional  
outsidecombustionairkitsandoptionaldeco-  
rative glass doors.  
The fireplace and chimney system must be  
enclosed when installed in or passing through  
alivingareawherecombustiblesorpeoplemay  
come in contact with it. This is important to  
prevent possible personal injury or fire hazard.  
These fireplaces have been tested for installa-  
tioninCanadatoULC-S610. Forinstallations  
in Canada, the chimney clearance to com-  
bustibles must be 2 inches and the Cold  
Climat Kit must be installed.  
TYPICAL INSTALLATION  
Forquestions,pleasecallyourdistributororthe  
manufacturer. Special restrictions apply to the  
front and facing of the fireplace and nearby  
walls (See pages 16, 17 and 18 ).  
These fireplace systems are designed for in-  
stallation in accordance with the National Fire  
Protection Standard for chimneys, fireplaces  
and solid fuel burning appliances; NFPA 211  
and in accordance with codes such as the  
BOCABasic/NationalCodes,theStandardMe-  
chanicalCodeandtheUniformBuildingCodes.  
CHIMNEY SYSTEM  
Chimney and  
Termination  
These fireplaces are designed and code listed  
for use with Security Chimneys FTF8 chimney  
System only. Always use Security Chimneys  
FTF8 chimney components with these fire-  
places. Do not modify or alter these compo-  
nents as this may cause a potential serious  
hazard and void the Warranty.  
WARNING: FAILURE TO USE MANUFAC-  
TURE PROVIDED PARTS, VARIATIONS  
IN TECHNIQUES AND CONSTRUCTION  
MATERIALSORPRACTICESOTHERTHAN  
THOSE DESCRIBED IN THIS MANUAL  
MAY CREATE A FIRE HAZARD AND VOID  
THE LIMITED WARRANTY.  
Outside  
Combustion  
Air Kit  
*Construction Materials:  
(Optional)  
• framing materials • paneling  
• particle board  
• dry wall  
• flooring  
etc.  
• plywood  
**Note: 2" clearance to combustibles around  
Radiant Model Shown  
Figure 1  
chimney components required in Canada.  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
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Insulate Joists  
Same As Ceiling  
Chimney Height  
LOCATION OF FIREPLACE  
The total height of your completed fireplace  
system from the surface the fireplace rests on  
to the chimney top must not exceed 60' and  
mustalsomeetminimumheightrequirements.  
Refer to the minimum system height chart.  
Carefully select the proper location for heat  
circulation, aesthetics, chimney obstructions  
andclearancetosidewall(s). Withproper pre-  
planning, a slight adjustment of a few inches  
can save considerable time and expense later  
during construction and assembly.  
Draft Stops  
Firestop  
Minimum System Height  
Security's FTF8 Pipe  
Vertical Installation  
One Offsets  
15' 0"  
15' 0"  
25' 0"  
CTDT  
Termination  
Hearth  
Hearth  
Note: Non-  
Combustible  
Chase  
Flashing  
Must Be  
Used To  
Cover  
Chase  
Opening  
Two Offsets  
Chase Enclosure  
A chase is a vertical box-like structure con-  
structedtosurroundthefireplaceandchimney.  
Refer to Figure 2 for a typical chase configura-  
tion. As with all chimney installations, avoid  
overhead obstructions such as trees, power  
lines, etc. A chase should be constructed and  
insulated just like any outside wall. In a cold  
climate, we recommend the base of the chase  
should also be insulated between the solid  
continuous floor beneath the fireplace and the  
chase bottom. Chase insulation in a cold cli-  
mate installation is not required for safety.  
Optional  
Outside Chase  
Figure 4  
Optional  
Insulation  
In Outside  
Walls Of  
Chase  
Carefully consider the position of the fireplace  
opening with respect to the location of adja-  
cent or nearby stairwells, bath or kitchen ex-  
haustfansand/orreturnairregistersforforced  
air furnaces/air conditioners that could cause  
a smoking fireplace condition if the house is  
tightly insulated.  
8'  
Level  
Solid  
Continuous  
Surface  
ASSEMBLY OUTLINE  
Before You Start  
Outside  
Base  
Insulation  
(Thermal Barrier)  
Whenlocatingthefireplace,considerationmust  
be given to combustibles and final finishing.  
See Figure 5 and confine the final location of  
combustiblefinishmaterialstothe"SafeZone".  
Check your inventory list to be sure you have all  
the necessary parts supplied in good usable  
condition.Checkalsoforanyconcealeddamage.  
Figure 2  
DO NOT permanently place furniture or other  
items such as decorative pillows within 60" of  
the fireplace front face.  
WARNING: IF INSULATION IS USED, THE  
FIREPLACE MUST NOT BE PLACED DI-  
RECTLY AGAINST IT. INSULATION OR  
VAPORBARRIERS, IFUSED, MUSTFIRST  
BE COVERED WITH GYPSUM BOARD,  
PLYWOOD, PARTICLEBOARDOROTHER  
MATERIALTOASSUREINSULATIONAND  
VAPOR BARRIERS REMAIN IN PLACE.  
Checktheoperationofthedamper.Thedamper  
is controlled through the use of a control lever  
located within the firebox opening at the top  
center in front of the firebox lintel (Figure 3 ).  
The control lever snaps into place at either  
extreme of its range of motion. When locked  
in position all the way to the right, the damper  
isopen. Whenlockedinpositionall thewayto  
the left, the damper is closed.  
Black Portion Of Frame  
Not To Be Covered With  
Combustible Materials  
Wall  
Covering  
12”  
45°  
WARNING: DO NOT PACK OR FILL RE-  
QUIRED AIR SPACES WITH INSULATION  
OR OTHER MATERIAL. NO MATERIAL IS  
ALLOWED IN THESE AREAS.  
1”  
Door  
Opening  
Safe  
Zone  
Damper  
Open  
Damper  
Closed  
12”  
Note: Do not insulate the chase cavity with  
blown or fill type insulation materials.  
Lintel  
Figure 5  
Combustion  
Air Actuator  
Note:Localcodesmaynotrequirefirestopping  
at the ceiling levels for outside chase installa-  
tions. However, it is recommended for safety  
and the reduction of heat loss.  
Figure 3  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
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1. Estimate the total weight of the fireplace  
system including chimney and surround ma-  
terials such as brick, stone, etc., to be in-  
stalled. Shipping weights for the fireplace  
may be found on page 18.  
ASSEMBLY STEPS  
Top Spacer  
Note:Thefollowingstepsrepresentthenormal  
sequence of installation. Each installation is  
unique, however, and might require a different  
sequence.  
Maintain  
1" (25 mm)  
Air Space  
At Back  
And Sides  
2. Measure the square footage of the floor  
spacetobeoccupiedbythesystem, surrounds  
and hearth extensions.  
1. Position firebox prior to framing or into  
prepared framing.  
Front  
Hearth  
Extension  
3. Notethefloorconstruction,i.e.2x6’s,2x8’s  
or 2 x 10’s, single or double joists, type and  
thickness of floor boards.  
2. Install the chimney system.  
1" (25 mm) Space  
3. Connect house wiring to the fireplace for  
later attachment of optional blower.  
Metal Safety Strip  
Floor  
4. Use this information and consult your local  
building code to determine if you need addi-  
tional support.  
Note: Hearth extensions must not interfere with  
circulating grillwork  
4. Install optional outside combustion air kit.  
5. Plumb gas line if a decorative gas appliance  
will be used. (Gas connections should only be  
performed by an experienced, licensed/certi-  
fied tradesman.)  
Figure 6  
CAUTION: DO NOT BLOCK THE HEAT-CIRCU-  
LATING AIR INLET AND OUTLET PORTS ON  
CIRCULATING MODELS. DOING SO MAY RE-  
SULT IN A POTENTIAL FIRE HAZARD.  
Maintain  
1" (25 mm)  
Air Space  
At Back  
6. Complete the installation, finish wall mate-  
rial, surround and hearth extension to your  
individual taste.  
If you plan to raise the fireplace and hearth  
extension, build the platform assembly then  
position fireplace and hearth extension on top.  
Secure the platform to the floor to prevent  
possible shifting.  
And Sides  
7. Assemble and attach optional glass door  
assembly.  
Front  
Hearth  
CLEARANCES  
Study the three dimensional illustration (Fig-  
ure 1 ) to get a general idea of each element of  
your fireplace system.  
Extension  
1" (25 mm) Space  
Minimum clearance to combustibles for the  
appliance is as follows: sides and back - 1" (25  
mm),floor-0"(0mm),adjacentwall-12"(305  
mm), ceiling - 37-1/2" (953 mm).  
PRE-INSTALLATION NOTES  
Metal Safety Strip  
Platform  
Floor  
The fireplace may be installed directly on a  
combustiblefloor or raisedonaplatformof an  
appropriate height. Do not place fireplace on  
carpeting,vinylorothersoftfloorcoverings.It  
may, however, be placed on flat wood, ply-  
wood, particle board or other hard surfaces.  
Be sure fireplace rests on a solid continuous  
floor or platform with appropriate framing for  
support and so that no cold air can enter the  
room from under the fireplace.  
Note: Hearth extensions must not interfere with  
circulating grillwork  
INSTALLING THE FIREPLACE  
Step 1. Slide the fireplace into prepared fram-  
ing or position fireplace in its final position and  
frame later.  
Figure 7  
Note: Install the hearth extension only as illus-  
trated.  
The fireplace may not be recessed into a com-  
bustiblefloor.Maintainthefloortohearthclear-  
ance established by the fireplace lower front  
face.  
The safety strips should extend from front of  
thefireplaceatleast1-1/2"andshouldextendto  
be at least flush with the sides. In the event a  
wooden support is used to elevate the fireplace  
abovethefloor,a“Ztypesafetystripshouldbe  
fabricated and used to protect the front surface  
ofthewoodsupportaswellasthefloorbeneath  
the hearth extension (Figures 8 and 9 ). The  
safety strips should be tacked down to prevent  
possible movement.  
The fireplace may be positioned and then the  
framing built around it, or the framing may be  
constructed and the fireplace positioned into  
the opening.  
Step 2. Insert the provided metal safety strips,  
beneaththefireplaceasillustrated(Figures6,7  
and8).Thesafetystripsshouldoverlap1/2"for  
continual coverage of the floor.  
Usually, no special floor support is needed for  
the fireplace, however, to be certain:  
Note: Safety strips are not required when fire-  
place rests on a noncombustible surface.  
Note: The Z type safety strip is not supplied.  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
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FIREPLACE SPECIFICATIONS  
1-1/2"  
(38 mm)  
9-5/8"  
(244 mm)  
7-1/2"  
(191 mm)  
36"  
(914 mm)  
37"  
(940 mm)  
20-3/16"  
(513 mm)  
1-1/2"  
Metal Safety Strips  
27-7/8"  
(708 mm)  
2"  
(51 mm)  
Figure 8  
7-3/16"  
(183 mm)  
40"  
(1016 mm)  
43"  
(1092 mm)  
Blocking  
Front (BC Model Shown)  
Appliance Top Spacer  
Metal Safety Strips  
Figure 9  
9-7/8"  
Combustion  
Air Inlet  
(251 mm)  
Step 3. Refer to fireplace drawings and specifi-  
cationsonpages6and7forframingdimensions  
and details. Frame appliance enclosure as illus-  
trated in Figures 11 through 14 on page 8.  
Gas Line  
Access  
32"  
(813 mm)  
37"  
(940 mm)  
Gas Line  
Access  
9-3/16"  
IMPORTANT: UNDER NO CIRCUMSTANCES  
CAN THE FIREPLACE TOP SPACERS (FIGURE  
10 ) BE REMOVED OR MODIFIED, NOR MAY  
YOUNOTCHTHEHEADERTOFITAROUNDOR  
BE INSTALLED LOWER THAN THE SPACERS.  
THE HEADER MAY BE IN DIRECT CONTACT  
WITH THE TOP SPACERS BUT MAY NOT BE  
SUPPORTED BY THEM.  
9-1/16"  
(230 mm)  
(233 mm)  
17-3/8"  
(441 mm)  
12-7/8"  
(327 mm)  
Junction  
Box  
20-1/4"  
(514 mm)  
Right Side  
Left Side  
Note: The framed depth, 20-5/8" (524 mm)  
from a framed wall, must always be measured  
from a finished surface. If a wall covering such  
asdrywallistobeattachedtotherearwall,then  
the 20-5/8" (524 mm) must be measured from  
the drywall surface. It is important that this  
dimension be exact.  
27-1/4"  
(692 mm)  
7-13/16"  
(198 mm)  
20-1/4"  
(514 mm)  
Appliance  
Top Spacer  
If the appliance is to be elevated above floor  
level, a solid continuous platform must be  
constructed.  
12-1/2"  
(318 mm)  
40"  
(1016 mm)  
43"  
1-1/2"  
(38 mm)  
The header may rest on the top metal spacers,  
but must not be notched to fit around them.  
(1092 mm)  
Top View  
Consult all local codes.  
Figure 10  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
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FRAMING SPECIFICATIONS  
Framing Dimensions  
C
D
Back Wall of  
Chase/Enclosure  
Including Finising  
Materials  
FOAK Combustion  
Air Kit - Optional  
A
42-1/4" 1073 mm  
if any  
B1  
B2  
C
D
E
37-1/2" 953 mm  
54-1/2" 1384 mm  
28-3/4" 730 mm  
15-3/8" 391 mm  
J
F
(See Note)  
A
E
Header  
Rough  
Framing Face  
(Unfinished Shown)  
70"  
35"  
1778 mm  
889 mm  
F
Corner Installation  
*B2  
G
H
J
20-5/8" 524 mm  
19-5/8" 498 mm  
49-1/2" 1257 mm  
Figure 14  
B1  
A
K
8"  
203 mm  
Fireplace Framing  
*Note: When Framing With 6” Studs Header Must  
Be 17” (432mm) Higher. Use Security Chimney’s  
OR15 Offset/Return Elbow To Recess The Chimney  
Back 2 1/2” (64mm). Flat Frame Down To A False  
Note: Allframingdimensionscalcu-  
lated for 1/2" dry wall at the fireplace  
face. Ifsheathingthechaseorfinish-  
ing with other thickness materials,  
calculations will need to be made.  
B
A
Header At (B1). Maintain Required Clearance To  
Chimney At All Times.  
Ceiling Framing  
Figure 11  
Figure 15  
Framing Dimensions for Ceiling  
Back Wall of Chase/Enclosure  
Including Finising Materials if any  
FOAK Combustion  
Air Kit  
Flue Type  
A
B
FTF8 Vertical  
14-1/2"  
14-1/2"  
(368 mm) (368 mm)  
FTF8 Vertical  
at 2"  
16-1/2"  
(419 mm) (419 mm)  
16-1/2"  
G
FTF8 Offset 30° 14-1/2"  
25"  
A
Inside Chase  
C
Rough  
Framing Face  
(Unfinished Shown)  
(368 mm) (635 mm)  
D
FTF8 Offset 30° 16-1/2"  
27"  
Roof Framing  
Figure 12  
at 2"  
(419 mm) (686 mm)  
Figure 16  
Back Wall of Chase/Enclosure  
Including Finising Materials  
if any  
FOAK  
Framing Dimensions for Roof  
FTF8 at 1" FTF8 at 2"  
D*  
16-1/2"  
Combustion  
Air Kit - Optional  
Pitch  
0/12  
C
D*  
C
G
H
14-1/2"  
14-1/2"  
16-1/2"  
(368 mm)  
(368 mm) (419 mm) (419 mm)  
A
Rough  
6/12  
14-1/2"  
(368 mm)  
17"  
16-1/2"  
19"  
Framing Face  
Outside Chase  
(Unfinished Shown)  
(442 mm) (419 mm) (483 mm)  
12/12  
14-1/2"  
(368 mm)  
21-1/2"  
16-1/2"  
23-1/2"  
Figure 13  
(546 mm) (419 mm) (579 mm)  
* Perpendicular to roof ridge  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
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Step 4. Fireplace should be fastened to side  
framing members using the nailing tabs at the  
top and bottom of the fireplace front face. Use  
8d nails or equivalent (Figure 17 ).  
Note:Ifthefireplaceisinstalledagainstaninside  
wall, the Class 0 metallic air duct may be ex-  
tended into a ventilated attic space at least 18"  
(457 mm) above the attic floor. Secure the duct  
hood to a vertical post with the inlet positioned  
downward. Ensurethatnothingblocksthehood  
opening. This air duct must never terminate  
higher than the fireplace chimney.  
Step 8. Cut or frame a hole through the outside  
wall for the installation of the duct inlet hood. A  
6-1/2" (165 mm) diameter hole is required.  
Feed the loose end of the flexible duct through  
the hole cut for the inlet hood and attach to the  
collaroninlethoodusingtwo(2)screws.Insert  
the hood into the opening. Secure in place with  
nails driven through the holes in hood flange.  
Seal with noncombustible waterproof silicon  
type caulking. If additional air duct is needed,  
use Class 0 metallic duct.  
8d Nail Or  
Equivalent  
Fastener  
Figure 19  
Step 3. Position appropriate firestop spacer at  
ceiling and nail temporarily with two (2) 8d  
nails. Use flat firestop spacer, Model F8FS-2, if  
chimney penetrates ceiling vertically. If chim-  
neypenetratesceilingat30°angle(offsetchim-  
ney), use 30° firestop spacer, Model F8FS30.  
Use one nail on opposite sides to hold firestop  
spacer in position. Nail permanently, using at  
least two (2) more 8d nails, after chimney  
sections have been assembled through the  
firestop spacer and after any necessary adjust-  
ments have been made. Firestop spacer must  
be secured by at least four (4) 8d nails when  
completely installed.  
INSTALLING THE CHIMNEY SYSTEM  
Figure 17  
Step1. Beforecontinuing,checktheoperation  
of the damper, as described on page 4, (refer  
to Figure 3 ).  
For Canadian Installations Proceed  
with Steps 5 through 8  
Step 5. Attach the cold climate kit, Model  
FTF8-CCK1-LD,aroundthechimneycollarwith  
the screws provided (see Figure 18 ).  
Step 2. Using standard construction framing  
techniques,constructopeningforchimneyroute  
upthroughtheceiling(s)androoforthroughan  
outside chase.  
Note: CCK1-LD model requires a 6" diameter  
Class 0 metallic air duct, acquired locally by  
installer.  
Framing must maintain adequate minimum air  
space clearance at all times.  
Note: If there is a room above ceiling level,  
firestopspacermustbeinstalledonthebottom  
side of the ceiling. If an attic is above ceiling  
level, firestop spacer must be installed on top  
side of ceiling joist (Figures 20 and 21 ).  
CAUTION: ALLOW MINIMUM 1"* CHIMNEY  
AIRSPACETOCOMBUSTIBLEFRAMINGMEM-  
BERS THROUGHOUT VERTICAL OR OFFSET  
CHIMNEY INSTALLATION.  
Room Above  
Aminimum1"* airspacemustbereservedfor  
all combustible materials extending for any  
continuous length surrounding the chimney.  
*Note:2"clearancetocombustiblesrequired  
in Canada.  
Figure 18  
Firestop Spacer  
Reference Figures 15 and 16 and charts Fram-  
ing Dimensions for Ceiling and Roof, which  
specify minimum ceiling and roof dimensions.  
Step 6. Connect the 6" (152 mm) Class 0  
metallic air duct to the collar on the chimney  
collar enclosure with the screws provided in  
the hardware kit.  
Figure 20  
Attic Above  
In new construction, to determine chimney cen-  
terline,useplumblinefromrooforceilingabove  
fireplace to center of flue collar on fireplace.  
Step 7. Route the Class 0 metallic air duct out  
thebackwallorsidewall,upthroughtheceiling  
or floor joists to an outside wall. The air duct’s  
inlet should be located above any anticipated  
snow level.  
For remodeling, plumb to center of flue collar  
from ceiling above, drive nail through ceiling  
from below to mark position, then mark and  
cut to passage from above ceiling (around  
nail) (see Figure 19 ). Then plumb from ceiling  
or roof level directly above hole which has just  
been completed.  
Firestop Spacer  
Figure 21  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
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Step 4. Note: Chimney sections are con-  
structed with a unique locking tab design,  
which ensures an immediate, tight assembly  
between sections. Plan your chimney require-  
ments carefully before assembly as chimney  
is difficult to disassemble after installation. If  
disassembled, the tabs might become dam-  
aged. Be certain tabs are properly formed to  
ensure locking tabs engage properly.  
Note: Assemble one component of chimney at  
a time (inner section first, then outer section  
last) before proceeding with the next complete  
section.  
CHIMNEY 30° OFFSET THROUGH FLOOR  
OR CEILING  
Itmaybenecessarytoassemblethechimneyat  
30° when passing through the floor or ceiling  
area. Use the F8FS30 firestop spacer as shown  
in Figures 22 and 23. Support the chimney at  
floor or ceiling penetration with a FTF8 stabi-  
lizer if distance of chimney below ceiling is 10'  
or more. Maintain 1"* minimum air space to  
combustibles from chimney sections.  
Continue to assemble the chimney up through  
framed opening. Assemble just enough to pen-  
etrate the roof flashing openings (Figure 27 ).  
Always maintain 1"* minimum air space to  
combustible materials and always check each  
chimneyjoint(innerandouter)toensureproper  
engagement.Checkverticalalignmentofchim-  
ney so that it projects from the roof in true  
vertical position.  
The Security Chimney's FTF8 chimney system  
is a two piece chimney, which snap together  
from the fireplace up. Start with the inner flue  
sectionwiththelancedendup,snaplockitinto  
thematchingcollarontopofthefireplace.Atall  
subsequent joints, the upper flue section fits  
into the preceding flue section. Each piece  
snaps together by means of locking tabs (9  
locking tabs per joint). Check each piece by  
pullingupslightlyfromthetoptoensureproper  
engagement before installing the next section.  
Ifthefluehasbeeninstalledcorrectly, itwillnot  
separate when you test it. Also, the inner flue  
joint where each section is joined should be  
tight and flat without gaps (Figure 25 ).  
Attic Space  
F8FS30-2  
Firestop Spacer  
2" Min.  
Air Space  
FTF8-S4 Stabilizer  
2" Min.  
Air Space  
10'  
Max.  
30° Firestop  
And Attic Above  
1"* Min. Air Space  
To Combustibles  
Figure 22  
Room Above  
Figure 27  
F8FS30-2  
Firestop Spacer  
2" Min.  
Air Space  
Security's chimney sections do not need to be  
screwed together. Additional reinforcement is  
not necessary except in certain offset condi-  
tions (refer to page 14, Figure 38 ).  
2" Min.  
Air Space  
FTF8-S4 Stabilizer  
Step 5. The height of vertical chimney pipe  
supported only by the fireplace must not ex-  
ceed 30'. Chimney heights above 30' must be  
supported by a Model FTF8-S4 stabilizer in-  
stalled at 30' intervals.  
30° Firestop  
10'  
Max.  
And Room Above  
Figure 23  
Figure 25  
For Canada Only  
Note: The Model FTF8-S4 adds 3" net effective  
height to the total chimney system.  
Outer pipe section installs in just the opposite  
way; the lanced end goes down and each new  
section goes OVER the outside of the previous  
section installed (Figure 26 ).  
When installing the chimney system through  
an open attic space, the attic shield assembly-  
firestopspacermustbeused(Figure24).This  
installation is required only for use in Canada.  
Install the Model FTF8-S4 stabilizer by fitting  
inner section down into respective section of  
proceeding flue pipe and locking outer stabi-  
lizer section into place over the outer chimney  
pipe. Position for proper clearance through  
framedopeningandnailstrapssecurely(under  
tension in shear) into place on framing. Use  
8d nails. Attach successive lengths of chimney  
pipe directly to stabilizer using same tech-  
niques as described in Step 4 (see Figure 28 ).  
Open Attic Space  
Locking  
Tabs  
(Lances)  
*Note: 2" clearance to combustibles required  
in Canada.  
Figure 24  
Figure 26  
Note: For Canadian installations, all chimney  
installedoutsidethebuildingmustbeconstructed  
with galvalume (outer sections only) effective  
January 1, 1992. The appropriate model desig-  
nations are located in the back of this manual.  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
9
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Roof Ridge  
FTF8-S4 Stabilizer  
Figure 28  
120°  
Note: Do not apply excessive pressure to any  
subsequent chimney sections following the  
stabilizer when installing. Ensure each subse-  
quent chimney section is securely attached by  
testing as noted in Step 4.  
Figure 30  
Figure 32  
Step 8. Slide the FTF8 storm collar (ordered  
separately) over outer chimney, rest on flash-  
ing spacers and align with top surface of  
flashing. Insert tab in slot, pull tight and bend  
tab back over slot. Seal storm collar to outer  
chimney with roof caulking or mastic around  
entire circumference of pipe. Also add extra  
roof caulking to the tab/slot area to seal com-  
pletely against water penetration (Figure 31 ).  
Check all joints very carefully to ensure no  
water intrusion can take place.  
Step10.UsingaFTF8-CTDRoundTermination:  
1. Hold the FTF8-CTD over top of last chimney  
section (Figure 33 ).  
Step 6. Select the proper Security Chimneys  
roof flashing based on pitch of roof. Use chart  
below for selection:  
2. Center inner slip section in inner flue pipe-  
slip down.  
Roof Pitch  
Model  
F8F6  
Flat to 6/12  
6/12 to 12/12  
F8F12  
Next,slideroofflashingoverextendedchimney  
sectionthatpreviouslyhasbeeninstalledabove  
the roof opening in Step 4. FTF8 flashings  
require flashing spacers. Slide flashing all the  
way down until the flashing base rests flat on  
the roof (Figure 29 ). Again, check the vertical  
position of the chimney and the 1"* minimum  
air space to combustibles.  
CTD  
Locking Band  
Termination  
Chimney  
Waterproof  
Caulk  
Figure 33  
3. Center outer locking section over outer flue  
pipe. Push down until locking tabs are firmly  
engaged.  
FTF8 Chimney  
Do Not Seal  
Flashing Spacers  
FTF8 Flashing  
Figure 31  
4. PullupslightlyonCTDtoensurelockingjoint  
has firmly engaged.  
Step 9. Security Chimneys locking bands,  
Model FLB, may be required if the chimney  
extends too high above the roof flashing. As a  
general rule, if thechimneyextendsmorethan  
6' above the roof flashing, the use of locking  
bands is advisable to strengthen the chimney  
assembly. Align the locking band at the chim-  
ney joint. Locking bands wrap around pipe  
joints equally covering the joints of both pipe  
sections. Use the nut provided and TIGHTEN  
snugly. Do not overtighten as this might dam-  
age the chimney section (refer to Figure 31 ).  
Using a FTF8-CTDT Chase Termination:  
Refer to specific installation instructions in-  
cluded with the FTF8-CTDT chase termination  
for clearance and installation details.  
Figure 29  
Using a FTF8-CT1 Chase Termination:  
Note: Do not caulk or seal the ventilating  
openings.  
Refer to specific installation instructions in-  
cluded with FTF8-CT1 chase terminations for  
clearance and installation details.  
Step 7. Secure flashing by nailing along the  
perimeter into roof using 8d nails. If shingled  
roof, slide upper end and sides of roof flash-  
ing under shingles (trim if necessary), seal  
the top and both sides of the flashing to the  
roof with roof caulking. Cover nail heads with  
roof caulking (Figure 30 ).  
Note: If chimney extends more than 8' above  
roofsurface, guywiresarealsorecommended.  
Use three (3) guy wires, attach to locking band  
assembly, extend and secure to roof in a trian-  
gularpattern(seeFigure32).Guywiresarenot  
supplied by the manufacturer.  
Using a FTF8-CT2 Chase Termination:  
Refer to specific installation instructions in-  
cluded with FTF8-CT2 chase terminations for  
clearance and installation details.  
*Note: 2" clearance to combustibles required  
in Canada.  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
10  
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To determine the number of chimney sections  
and chimney components required, follow  
these steps:  
Less Than 10'  
2' Min.  
1. Determine total vertical height of the fireplace  
installation. This dimension is the distance from  
the surface the fireplace sets on to the point  
where smoke exits from the termination.  
3'  
Min  
10'  
3'  
Min  
2. Determine the number of chimney compo-  
nents required, except chimney sections. This  
wouldincludefirestopspacers,stabilizers,roof  
flashing, etc.  
3. The effective heights of the components are:  
Figure 34  
The Fireplace  
=
=
=
=
=
=
=
=
=
=
36-1/4"  
10-1/4"  
16-1/4"  
34-1/4"  
46-1/4"  
4"  
FTF8-12  
Note: It is recommended that all exterior ex-  
posed metal fireplace components; such as ter-  
minations, flashings, storm collars and/or flue  
be painted with a premium quality, high tem-  
perature, rust preventative paint designed for  
metal. This is especially important when instal-  
lationsaremadeinabnormallyadverseorcorro-  
siveenvironments;suchasnearlakes,oceansor  
in areas with consistently high humidity condi-  
tions. Consult the paint manufacturers instruc-  
tions for proper preparation and application.  
MULTIPLE TERMINATIONS  
FTF8-18  
If more than one termination is located in the  
samechaseorwithinthesamegeneralproxim-  
ity, we suggest they should be separated in  
distance at least 24" horizontally from flue cen-  
ter to flue center and stacked or staggered  
vertically at least 18" apart, from the termina-  
tion of one smoke exit to the termination of  
another smoke exit (Figure 35 ).  
FTF8-36  
FTF8-48  
FTF8-CTD Termination  
FTF8-CT1 Termination  
FTF8-CT2 Termination  
FTF8-CTDT Termination  
FTF8-S4 Stabilizer *  
12" to 18"  
15" to 23"  
12" to 18"  
3"*  
CTD  
TEN FOOT RULE SUMMARY  
18"  
* Required for every 30' of vertical chimney  
and/or 10' of offset chimney.  
The minimum chimney height above the roof  
and/or to adjacent walls and buildings is speci-  
fied by all major building codes.  
18"  
CTDT  
4. Determine amount of chimney height re-  
quired by subtracting total combined height of  
all pre-selected components (fireplace and  
chimneycomponentsfromtotaldesiredheight.)  
CTDT  
If the horizontal distance from the peak of the  
roof is less then 10', the top of the chimney  
must be at least 2' above the peak of the roof.  
24"  
24"  
Reference Vertical Elevation Chart and deter-  
minethenumberofchimneysections(quantity  
and length) required.  
If the horizontal distance from the chimney  
edge to the peak of the roof is more than 10' a  
chimney height reference point is established  
on the roof surface 10' horizontally from the  
chimney edge. The top of the chimney must be  
at least 2' above this reference point. In all  
cases, the chimney cannot be less then 3'  
above the roof at the edge of the chimney.  
Figure 35  
SPECIAL OFFSET INSTRUCTIONS  
This suggestion is provided in the interest of  
betteroperation. Iftheterminationsarelocated  
too close to each other, smoke may migrate  
from one flue into the other.  
To clear any overhead obstructions, you may  
offset your chimney system using Security  
Chimneys 30° offset and return elbows. Use  
two elbows - an offset elbow to initiate the  
offset and a return elbow to terminate it. A 30°  
offset elbow, angling in any direction, may be  
the first component used off the top of the  
fireplace flue collar.  
The 2' in 10' rule is necessary in the interest of  
safety but does not ensure smoke-free opera-  
tion. Trees, buildings, adjoining roof lines, ad-  
versewindconditions, etc., mayrequireataller  
chimney should the fireplace not draft properly  
(refer to Figure 34 ).  
FTF8 CHIMNEY COMPONENT  
CALCULATIONS  
The minimum installed height of the com-  
pleted fireplace system is 15' 0". The maxi-  
mum height is 60' 0".  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
11  
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The offset and return elbows may be attached  
together, or a section or sections of chimney  
may be used between, but do not exceed 20' in  
total length between elbows. If sections of pipe  
exceed 10' between elbows, a chimney stabi-  
lizer must be used at the midpoint (Figure 36 ).  
The stabilizer support straps must be attached  
under tension (in shear) to structural framing  
members above. When two sets of elbows are  
used, the maximum combined length of chim-  
ney used between elbows cannot exceed 20'  
(Figure37).Example:IfC =10' thenC cannot  
FTF8 VERTICAL ELEVATION CHART  
Height Of  
Chimney Only  
Number Of FTF8  
Chimney Lengths  
Height Of  
Chimney Only  
Number Of FTF8  
Chimney Lengths  
Inches Feet/Inches 12" 18" 36" 48"  
Inches Feet/Inches 12" 18" 36" 48"  
386 ¹⁄₂  
390 ³⁄₄  
396 ³⁄₄  
404 ¹⁄₂  
414 ³⁄₄  
416 ¹⁄₂  
420 ³⁄₄  
426 ³⁄₄  
432 ³⁄₄  
437  
443  
450 ³⁄₄  
461  
462 ³⁄₄  
466 ³⁄₄  
472  
478 ³⁄₄  
483  
32 2 ¹⁄₂  
32 6 ³⁄₄  
33 0 ³⁄₄  
33 8 ¹⁄₂  
34 6 ³⁄₄  
34 8 ¹⁄₂  
35 0 ³⁄₄  
35 6 ³⁄₄  
36 0 ³⁄₄  
0
2
1
0
1
0
0
1
0
2
1
0
1
0
0
1
0
2
1
0
1
0
0
1
0
2
1
0
1
0
0
1
0
2
1
0
1
0
0
1
0
2
1
0
1
0
0
1
0
2
1
0
1
0
0
1
0
2
1
0
1
0
0
1
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
0
0
1
1
0
1
0
0
0
0
1
1
0
1
0
0
0
0
1
1
0
1
0
0
0
0
1
1
0
1
0
0
0
0
1
1
0
1
0
0
0
0
1
1
0
1
0
0
0
0
1
1
0
1
0
0
0
0
1
1
0
1
8
8
8
8
8
9
8
9
9
9
9
9
9
10  
9
11  
17  
0
1
1
2
2
3
4
4
5
5
6
6
7
8
8
9
9
9
11  
5
1
0
2
1
0
0
0
1
0
2
1
0
0
0
1
0
2
1
0
1
0
0
1
0
2
1
0
1
0
0
1
0
2
1
0
1
0
0
1
0
2
1
0
1
0
0
1
0
2
1
0
1
0
0
1
0
2
1
0
1
0
0
1
0
1
0
1
0
0
1
0
1
0
1
0
0
1
0
1
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
0
0
0
0
1
0
1
0
0
0
0
1
0
1
0
0
0
0
1
1
0
1
0
0
0
0
1
1
0
1
0
0
0
0
1
1
0
1
0
0
0
0
1
1
0
1
0
0
0
0
1
1
0
1
0
0
0
0
1
1
0
1
0
0
0
0
0
0
1
0
1
1
1
1
1
2
1
2
2
2
2
2
2
3
2
3
3
3
3
3
3
4
3
4
4
4
4
4
4
5
4
5
5
5
5
5
5
6
5
6
6
6
6
6
6
7
6
7
7
7
7
7
7
8
7
8
21 ¹⁄₄  
27 ¹⁄₄  
35  
9 ¹⁄₄  
3 ¹⁄₄  
11  
11  
3 ¹⁄₄  
9 ¹⁄₄  
3 ¹⁄₄  
7 ¹⁄₄  
1 ¹⁄₄  
9 ¹⁄₄  
9 ¹⁄₄  
1 ¹⁄₄  
6 ¹⁄₂  
1 ¹⁄₄  
5 ¹⁄₂  
11 ¹⁄₂  
47  
51 ¹⁄₄  
57 ¹⁄₄  
63 ¹⁄₄  
67 ¹⁄₄  
73 ¹⁄₄  
81 ¹⁄₄  
93 ¹⁄₄  
97 ¹⁄₄  
102 ¹⁄₂  
109 ¹⁄₄  
113 ¹⁄₂  
119 ¹⁄₂  
127 ¹⁄₄  
137 ¹⁄₂  
139 ¹⁄₄  
143 ¹⁄₂  
149 ¹⁄₂  
155 ¹⁄₂  
159 ³⁄₄  
165 ³⁄₄  
173 ¹⁄₂  
183 ³⁄₄  
185 ¹⁄₂  
189 ³⁄₄  
195 ³⁄₄  
201 ³⁄₄  
206  
1
2
exceed 10'.  
36  
5
36 11  
37 6 ³⁄₄  
If an offset exceeds 6' in length, each chimney  
joint beyond the first 6' of offset to the return  
elbow, must be secured by a No. 8 x 1/2" sheet  
metalscrewlocatedattheundersideofthejoint  
(Figure 38 ).  
38  
5
38 6 ³⁄₄  
38 10 ³⁄₄  
³⁄₄ 39 4³⁄₄  
39 10 ³⁄₄  
10  
10  
10  
10  
10  
10  
11  
10  
11  
11  
11  
11  
11  
11  
12  
11  
12  
12  
12  
12  
12  
12  
13  
12  
13  
13  
13  
13  
13  
13  
14  
13  
14  
14  
14  
14  
14  
14  
15  
14  
15  
15  
15  
15  
15  
15  
16  
15  
40  
40  
3
9
489  
496 ³⁄₄  
507  
508 ³⁄₄  
513  
519  
10 7 ¹⁄₄  
11 5 ¹⁄₂  
11 7 ¹⁄₄  
11 11 ¹⁄₂  
12 5 ¹⁄₂  
12 11 ¹⁄₂  
13 3 ³⁄₄  
13 9 ³⁄₄  
14 5 ¹⁄₂  
15 3 ³⁄₄  
15 5 ¹⁄₂  
15 9 ³⁄₄  
16 3 ³⁄₄  
16 9 ³⁄₄  
41 4 ³⁄₄  
42  
42 4 ³⁄₄  
A 1/8" diameter hole must be drilled in the  
chimney joint using a 1/8" diameter drill. Hole  
should be drilled in center of joint overlap  
(Figure 39 ). Be sure to drill only through the  
outer chimney casting. Do not puncture the  
inner flue.  
3
42  
43  
43  
9
3
9
525  
529 ¹⁄₄  
535 ¹⁄₄  
543  
553 ¹⁄₄  
555  
44 1 ¹⁄₄  
44 7 ¹⁄₄  
45  
46 1 ¹⁄₄  
46  
3
Maximumoffsetofchimneysystemis30°.Two  
offsets must not be assembled to form a 60°  
offset. However, two sets of offset and return  
elbows may be used on a single flue system,  
providedthetotalheightofthesystemexceeds  
25'.  
3
559 ¹⁄₄  
565 ¹⁄₄  
571 ¹⁄₄  
575 ¹⁄₂  
581 ¹⁄₂  
589 ¹⁄₄  
599 ¹⁄₂  
601 ¹⁄₄  
605 ¹⁄₂  
611 ¹⁄₂  
617 ¹⁄₂  
621 ¹⁄₂  
627 ¹⁄₂  
635 ¹⁄₂  
645 ¹⁄₂  
647 ¹⁄₂  
651 ¹⁄₂  
657 ¹⁄₂  
663 ¹⁄₂  
667 ³⁄₄  
673 ³⁄₄  
681 ¹⁄₂  
691 ³⁄₄  
693 ¹⁄₂  
697 ³⁄₄  
703 ³⁄₄  
709 ³⁄₄  
714  
46 7 ¹⁄₄  
47 1 ¹⁄₄  
47 5 ¹⁄₄  
47 11 ¹⁄₂  
48 5 ¹⁄₂  
49 1 ¹⁄₄  
49 11 ¹⁄₂  
50 1 ¹⁄₄  
50 5 ¹⁄₂  
51 11 ¹⁄₂  
51 5 ¹⁄₂  
51 9 ¹⁄₂  
52 3 ¹⁄₂  
52 11 ¹⁄₂  
53 9 ¹⁄₂  
53 11 ¹⁄₂  
54 3 ¹⁄₂  
54 9 ¹⁄₂  
55 3 ¹⁄₂  
55 7 ³⁄₄  
56 1 ³⁄₄  
56 9 ¹⁄₂  
57 7 ³⁄₄  
57 9 ¹⁄₂  
58 1 ³⁄₄  
58 7 ³⁄₄  
59 1 ³⁄₄  
17  
17  
2
8
212  
219 ³⁄₄  
230  
18 3 ³⁄₄  
19  
19 3 ³⁄₄  
2
231 ³⁄₄  
236  
19  
20  
20  
21  
21  
22  
23  
23  
23  
24  
8
2
8
0
6
2
0
2
6
0
242  
248  
252  
258  
266  
276  
278  
282  
Return elbow support straps must be securely  
attached under tension (in shear) to structural  
framing members above. Do not substitute a  
FTF8-30 offset elbow in place of a FTF8-E30  
return elbow.  
288  
OFFSET CALCULATIONS  
294 ³⁄₄  
298 ¹⁄₄  
304 ¹⁄₄  
312  
322 ¹⁄₄  
324  
328 ¹⁄₄  
334 ¹⁄₄  
340 ¹⁄₄  
344 ¹⁄₂  
350 ¹⁄₂  
358 ¹⁄₄  
368 ¹⁄₂  
370 ¹⁄₄  
374 ¹⁄₂  
380 ¹⁄₂  
24 6 ³⁄₄  
24 10 ¹⁄₄  
25 4 ¹⁄₄  
26  
26 10 ¹⁄₄  
27  
27 4 ¹⁄₄  
27 10 ¹⁄₄  
28 4 ¹⁄₄  
28 8 ¹⁄₂  
29 2 ¹⁄₂  
29 10 ¹⁄₄  
30 8 ¹⁄₂  
30 10 ¹⁄₄  
31 2 ¹⁄₂  
31 8 ¹⁄₂  
Step 1. Use Offset Chart to determine amount  
of horizontal offset (A) and height (B) for vari-  
ous chimney section assemblies.  
0
0
Step 2. Use Height of Chimney Only” column  
in The Vertical Elevation Chart to determine  
combinations of chimney used above return  
elbow to achieve desired heights. Reference  
Components Effective Height Chart in vertical  
elevation chart section.  
59  
60  
6
0
720  
727 ³⁄₄  
738  
739 ³⁄₄  
744  
60 7 ³⁄₄  
61  
61 7 ³⁄₄  
62  
6
0
Step 3. Use Elevation Chart as job estimator  
only.Addnecessaryfirestopspacersandstabi-  
lizers as required. Firestop spacers must be  
used as shown in Figures 22 and 23 and stabi-  
lizers as shown in Figure 28.  
12  
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A1  
OFFSET ELEVATION CHART  
A
Offset  
B
FTF8-ES30  
Number of FTF8 Chimney Sections  
Return  
Elbow  
Height Offset/Return FTF8-S4  
(Inches) (Inches)  
Elbow  
Stabilizer  
12"  
18"  
38"  
48"  
20'  
Max.  
4
15 ³⁄₄  
24 ¹⁄₂  
29 ³⁄₄  
33 ¹⁄₂  
38 ¹⁄₂  
43 ³⁄₄  
45 ¹⁄₄  
47 ¹⁄₂  
52 ¹⁄₂  
54 ¹⁄₄  
55 ³⁄₄  
57 ³⁄₄  
59 ¹⁄₄  
63  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
0
1
0
2
1
0
0
2
1
1
0
0
0
2
1
1
0
0
0
2
1
1
0
0
0
2
1
0
1
0
1
2
0
1
0
2
0
1
0
0
1
1
0
0
0
0
1
0
1
2
0
1
2
0
0
3
1
0
0
1
1
2
0
1
4
0
0
3
1
0
0
0
1
2
0
1
1
0
1
0
0
1
2
0
0
0
1
1
0
0
0
0
0
0
1
0
0
1
0
0
1
1
0
1
0
1
2
1
0
2
1
1
2
2
1
0
2
2
0
2
0
3
3
3
1
3
3
0
4
0
4
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
1
0
0
0
0
0
1
0
0
0
1
2
0
0
2
0
2
0
0
0
2
0
0
3
0
3
0
3
9
B1  
12  
Stabilizer  
14 ¹⁄₄  
17 ¹⁄₄  
20 ¹⁄₄  
21  
10' Max.  
Offset  
Elbow  
22 ¹⁄₄  
25 ¹⁄₄  
26 ¹⁄₄  
27  
28 ¹⁄₄  
29 ¹⁄₄  
31 ¹⁄₄  
32 ¹⁄₄  
34 ¹⁄₄  
35 ¹⁄₄  
37 ¹⁄₄  
38 ¹⁄₄  
39 ¹⁄₄  
41 ¹⁄₂  
43 ¹⁄₄  
44 ¹⁄₄  
45 ¹⁄₄  
46 ¹⁄₄  
48 ¹⁄₄  
49 ¹⁄₄  
50 ¹⁄₄  
51 ¹⁄₄  
54 ¹⁄₄  
55 ¹⁄₄  
64 ¹⁄₂  
68 ¹⁄₄  
69 ³⁄₄  
73 ¹⁄₄  
75  
Figure 36  
A2  
77  
80 ¹⁄₂  
83 ³⁄₄  
85 ¹⁄₄  
87 ¹⁄₂  
89  
C
2
B2  
A1  
91 ¹⁄₂  
94 ¹⁄₄  
95 ³⁄₄  
97 ³⁄₄  
B1  
C
1
103  
104 ¹⁄₂  
56 ¹⁄₂ 106 ¹⁄₂  
58 ¹⁄₄  
61 ³⁄₄  
64 ³⁄₄  
67  
109 ³⁄₄  
116  
121 ¹⁄₄  
124 ³⁄₄  
68 ³⁄₄ 128  
A2  
70  
130  
73  
135 ¹⁄₄  
138 ¹⁄₄  
145 ¹⁄₂  
147 ¹⁄₄  
150 ³⁄₄  
74 ³⁄₄  
79  
C
2
B2  
80  
A1  
82  
82 ¹⁄₄ 152  
B1  
C
1
Figure 37  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
13  
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Step 1. Determine the offset distance where  
chimney is to pass through the first ceiling-  
dimension A.” To find this point on your ceil-  
ing, first determine the center point for a verti-  
cal chimney following the instructions for ver-  
tical installation.  
Joints  
Chimney  
Section  
4'  
Measure height to the ceiling from the top of  
fireplace-dimension B.” Use the appropriate  
Offset Elevation Chart to find dimension A.”  
Mark point where you will drive your nail to  
showthecenterpointforyouroffsetceilingcut.  
Return  
Elbow  
y Joint Past 6'  
Screws Required At  
Ever  
Figure 41  
No. 8 x 1/2" SMS  
6'  
Note: The return elbow assembly performs the  
same function as a stabilizer. Consider this  
when determining the need for a stabilizer.  
Step2. ProceedbyusingtheStraightUpInstal-  
lation Instructions for cutting and framing ceil-  
ing and roof openings.  
No Screws Required In  
Joints For First 6' of Offset  
Note: Do not apply excessive pressure to any  
subsequent chimney section following return  
elbow assembly when installing. Ensure that  
each subsequent chimney section is securely  
attached by testing as noted above.  
Figure 38  
Note:SeeFramingandDimensionChartforthe  
sizes of the ceiling and roof openings. The size  
of the roof opening varies with the degree of  
pitch of the roof.  
Offset Elbow Assembly  
OPTIONAL EQUIPMENT  
CONSIDERATIONS  
Offset elbows install the same as chimney  
sections. First, snap the inner section INTO the  
preceding inner section of flue. Check connec-  
tion by pulling up slightly to ensure a tight fit.  
Next, the outer sections snap lock OVER the  
preceding outer section of chimney. Again,  
check outer section by pulling up slightly to  
ensure proper connection is made.  
Blower Kits (Circulating Models Only)  
Underside Of Chimney  
Blower Kits model FBK-100/200 are available  
for use with circulating models. The Blower  
Kit can be installed prior to or after installation  
of the fireplace.  
Figure 39  
FTF8-E30 Return Elbow*  
When installing the FBK-100 Blower Kit, a  
Blower Switch Kit (Model FUBSK) is required.  
This switch kit allows for a unit mounted  
blower switch to be used. The FUBSK is not  
included and must be purchased separately.  
Return Elbow Assembly  
Chimney Section (S)  
Return elbows install the same way as round  
terminations and stabilizers:  
Step 1. Hold return elbow over top of last  
chimney section.  
The FBK-200 Blower Kit comes standard with  
a wall mounted variable speed control switch.  
B
FTF8-30 Offset Elbow*  
A
Step 2. Center inner slip section into inner flue  
Note: The fireplace must have provisions for  
awallmountedOn/Offswitchinordertoinstall  
the FBK-200.  
pipe-slip down.  
Step3. Centerouter-lockingsectionoverouter  
chimneypipe.Pushdownuntillockingjointhas  
firmly engaged.  
THE FIREPLACE MUST BE WIRED TO THE  
HOUSE ELECTRICAL SYSTEM AT THE TIME  
OF INSTALLATION IN ORDER FOR THE OP-  
TIONAL FANS TO OPERATE, (SEE FIGURES  
42 AND 43 ).  
Step 4. Pull up slightly on return elbow to  
ensure locking joint has firmly engaged.  
*Part of Offset/Return Package Model FTF8-ES30  
Figure 40  
Step 5. Secure support straps to framing  
members by nailing under tension in sheer  
(Figure 41 ).  
Note: The utilization of fans will increase the  
air flow around the firebox. However, only a  
minimal increase in heat output should be  
anticipated.  
Note: The return elbow assembly performs the  
same function as a stabilizer. Consider this  
when determining the need for a stabilizer.  
INSTALLING OFFSETS  
THIS FIREPLACE IS NOT INTENDED TO BE  
USED AS A SUBSTITUTE FOR A FURNACE TO  
HEAT AN ENTIRE HOME. USE FOR SUPPLE-  
MENTARY HEATING ONLY.  
First, review the Offset Elevation Chart and  
Figure 40 for reference.  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
14  
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POWER TO THE FIREPLACE  
The Optional Blower Kit  
Operates on 115 volt 60 Hz  
150 watts AC  
This provision is intended for connection to a  
decorative gas appliance incorporating an au-  
tomaticshut-offdeviceandcomplyingwiththe  
Standard for Decorative Gas Appliances for  
installation in vented fireplaces, ANSI Z21.60  
(1991) or American Gas Association draft re-  
quirementsforGas-FiredLogLightersforWood  
Burning Fireplaces, Draft No. 4 dated August,  
1993. Install in accordance with the National  
Fuel Gas Code, ANSI Z223.1. This complies  
with the revised U.L. 127 standard.  
WARNING: DO NOT REMOVE THE AC-  
TUATORARMLOCKINGSCREWUNLESS  
THECOMPLETEOUTSIDEAIRVENTSYS-  
TEM HAS BEEN INSTALLED IN ACCOR-  
DANCE WITH THE DETAILED INSTRUC-  
TIONS PROVIDED WITH THE KIT.  
HOUSE  
WIRING  
GROUND  
WIRE  
Vent Free Appliances  
COVER PLATE  
Replace Cover Plate  
After Electrical  
Hook-Up  
House Wiring Must Be Secured  
With The Appropriate Electrical  
Connector To The Fireplace  
Convenience Outlet Wiring  
This unit has been tested and approved to  
ANSI/IAS/AGAZ21.11.2forusewithunvented  
gas appliances and complies with the stan-  
dardforFactory-Builtfireplaces,UL127,when  
installed with unvented gas log sets. Special  
instructions with regards to mantle installa-  
tions must be taken into consideration when  
installing such appliances.  
Combustion  
Air Actuator  
Figure 42  
The unit has been tested for use with any  
unvented log sets having a maximum rating of  
26,000 BTU. The minimum mantle configura-  
tionfortheselogsetsareoutlinedinFigure46.  
Pull Forward to Open,  
Push Back to Close  
Log sets with 40,000 BTU may be installed  
provided that no combustible mantle projec-  
tions are placed lower than 18 inches from the  
fireplace opening.  
Figure 44  
BLOWER THREE  
PRONGED PLUG TO  
GROUNDED OUTLET  
To operate, push the end of the actuator to the  
left as shown in Figure 44, until it "pops" free of  
its "locked" position. Pull the actuator forward  
to open the combustion air door, and push it  
backtoclose. To"lock"thecombustionairdoor  
closed, ensure the actuator is pushed all the  
way back then push the end of the actuators to  
the right until the step in the actuator moves  
behind the appliance front face within the slot-  
ted opening.  
These fireplaces have been marked with a  
maximum rating of 26,000 BTU to assure that  
homeowners do not exceed the allowable lim-  
itsforallallowedinstallationsofmantles. That  
limit may be increased to 40,000 BTU, pro-  
vided that the mantle installed complies with  
the 18-inch limitation and a copy of these  
instructions are available.  
Figure 43  
The FBK-100/200 Blower Kits are design certi-  
fied by Warnock Hersey for use with these  
appliances.  
Always check local building codes. Installation  
of the FBK Blower Kits must comply with local  
regulationsaswellastheNationalElectricCode.  
NEVER INSTALL AN UNVENTED GAS LOG  
SET WITH A BTU GREATER THAN 26,000 IF  
COMBUSTIBLE MANTLE PROJECTIONS ARE  
LOWER THAN 18 INCHES ABOVE THE FIRE-  
PLACE OPENING.  
Operate the actuator through several cycles  
including the "lock position. Ensuring proper  
operation and freedom of movement. Return  
the actuator arm to the locked position.  
Combustion Air Kits  
These appliances are equipped with an outside  
(make-up)airdoorandintegralactuatorarm. If  
the appliance is to be installed with an outside  
air vent system, use only FireCraft Models  
FAOK or FAOK-LD Combustion Air Kits. These  
kits come complete with detailed installation  
instructions and all components necessary in  
completing a combustion air vent system.  
Gas Line Connection  
WARNING: MODELS THAT HAVE THE  
"-2" SUFFIX HAVE NOT BEEN TESTED  
WITHANUNVENTEDGASLOGSET. TO  
REDUCE RISK OF FIRE OR INJURY, DO  
NOT INSTALL AN UNVENTED GAS LOG  
SET INTO THIS FIREPLACE.  
Install a 1/2" gas supply line through fireplace  
wall for connection to a decorative gas appli-  
anceinsidethefirebox. Outside, thegassupply  
line connects to a gas shut-off valve recessed  
flush into the wall or floor. The valve should be  
controlled by a removable valve key for safety.  
After completing the installation of the optional  
combustion air vent system the actuator arm  
must be put in service and tested to ensure  
proper operation before completing any enclo-  
sure around the firebox. Failure to do so may  
result in extensive and costly rework.  
CAUTION: WHEN USING THE DECORATIVE  
GAS APPLIANCE, THE FIREPLACE DAMPER  
MUSTBESETINTHEFULLYOPENPOSITION.  
Always plumb gas line installation per local  
codes. Check all connections with soap suds;  
leaks will bubble. Never test any gas line con-  
nection with a match or open flame.  
CAUTION:PLUMBINGCONNECTIONSSHOULD  
ONLY BE PERFORMED BY A QUALIFIED, LI-  
CENSEDPLUMBER. MAINGASSUPPLYMUST  
BE OFF WHEN PLUMBING GAS LINE TO FIRE-  
PLACE OR PERFORMING SERVICE.  
Locate the actuator arm along the right side of  
the appliance firebox opening and refer to  
Figure 44. After completing the installation of  
the Outside Combustion Air Kit remove and  
discard the actuator arm locking screw.  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
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If you’re installing a gas line, connect it before  
the fireplace is framed and enclosed in the  
finished wall. The gas knockout is determined  
by the indentation located at the bottom and  
slightly off center in the side refractories. THE  
KNOCKOUT IS ALWAYS REMOVED FROM IN-  
SIDE THE FIREPLACE. DO NOT REMOVE THE  
KNOCKOUT UNLESS YOU ARE INSTALLING A  
GAS LINE. If removal is attempted from the  
outer wrapper, side refractory damage may  
occur. With a medium-sized hammer, lightly  
tap the surface of the indentation. The refrac-  
torymaterialisverythininthisareaandiseasily  
removed. Once a small hole has been made,  
continue tapping until you have reached suffi-  
cientdiameterforthegaslinetofitthrough.The  
entire knockout does not have to be removed.  
Remove insulation in the gas line channel.  
Note: A 1"* air space must be preserved for all  
combustible materials extending for any con-  
tinuous length adjacent to the chimney.  
Finished  
Wall  
12"  
Max.  
1 1/2"  
It is especially important to insulate between  
the studs of an outside chase cavity and under  
the floor if the floor is above ground level. Do  
not place insulation directly against the fire-  
place or chimney system.  
Header  
Combustible  
Mantel  
and Trim  
Spacer  
12"*  
Min.  
8"*  
FIREPLACE FINISHES  
Mantels and Trim  
Fireplace  
Opening  
It is sometimes best to frame your fireplace  
after it is positioned and the chimney is in-  
stalled. Frame enclosure for chimney and fire-  
place with 2 x 4’s (or heavier) lumber.  
*Both Of These Dimensions Must Be At Least 18”  
When An Unvented Gas Log Set Rated At 26,000  
BTU Or Higher Is Used. (Maximum 40,000 BTU)  
Typical Installation  
IMPORTANT:REPACKINSULATIONMATERIAL  
IN SQUARE HOLE AROUND GAS LINE, INTE-  
RIORANDEXTERIOROFFIREPLACE, TOSEAL.  
Note: The header may rest on the two (2) metal  
top spacers on top of the unit but the header  
must not be notched to fit around the spacers.  
Figure 46  
Hearth Extensions and Wall Shields  
Glass Doors  
Thesefireplacesmaysit directlyonacombus-  
tible surface. A 1"* air space is required be-  
tween combustible framing and the chimney.  
A 1" air space is required between combus-  
tible framing and fireplace outer wrapper. In  
Canada, the minimum height for a combus-  
tible mantel is 18" (457 mm) above the fire-  
place opening. Figure 45 shows typical Cana-  
dian installations. Combustible mantels and  
trim may be installed 12" above the fireplace  
openingasperNFPA211,Section7-2.3.3.and  
Figure 46. If a mantel is of a noncombustible  
material, it isexempt fromtheserequirements  
as long as it does not interfere with the instal-  
lation or operation of glass doors.  
A hearth extension must be installed with  
all fireplaces. It is to protect the combustible  
floor in front of the fireplace from both radiant  
heat and sparks. The hearth extension must  
extend 8" beyond both sides of the fireplace  
opening and 16" beyond the front (see Figure  
47 ). Use a hearth extension constructed of a  
durable noncombustible material having an  
equal or better (lower k value) insulating value  
If glass doors are to be installed on these  
fireplaces, refer to specific installation instruc-  
tions packed with the glass doors. Use only the  
doors that are listed for use with these fire-  
places. Use of other non-listed glass door on  
these fireplaces may constitute a potential fire  
hazard and is not recommended.  
2
of k = .84 BTU IN/FT HR °F or a thermal  
CAUTION: CERTAIN GLASS DOORS OVERLAP  
THE BLACK METAL FACING OF THE FIRE-  
PLACE. IF THE FIREPLACE HAS BEEN FACED  
WITHNONCOMBUSTIBLEMATERIALS, THERE  
MIGHT NOT BE SUFFICIENT CLEARANCE TO  
INSTALL THE GLASS DOORS OF YOUR  
CHOICE. ENSURE ADEQUATE CLEARANCE IS  
MAINTAINED AT ALL TIMES SO AS NOT TO  
INTERFERE WITH THE INSTALLATION AND  
OPERATION OF GLASS DOORS.  
resistance that equals or exceeds r = 1.19 HR  
2
°F FT /BTU IN. With these values, determine  
the minimum thickness/material required us-  
ing the formula and Page 17.  
Note: Any noncombustible material whose k  
value is less than .84 or whose r value is more  
than 1.19 is acceptable.  
*Note: 2" clearance to combustibles required  
in Canada.  
If the fireplace is installed on a combustible  
floor, use the metal safety strips (provided)  
on the floor extending half under the fire-  
place and half under the hearth extension  
(refer to Figures 6 & 7).  
Finished  
Wall  
8" Max.  
COLD CLIMATE INSULATION  
(203mm)  
If you live in a cold climate, it is especially  
importanttosealallcracksaroundthefireplace  
opening with noncombustible material and  
wherever cold air could enter the room. Sur-  
rounding materials must be caulked where it  
meets the black metal facing of the fireplace to  
avoid cold air intrusion.  
Header  
Spacer  
Combustible  
Mantel  
A wall shield is required where a continuous  
perpendicular side wall is within 12" of the  
fireplace opening (Figure 48 ). Use a 36" W x  
36" H wall shield constructed of a durable,  
noncombustible material having an equal or  
better (lower k value) insulating value than k =  
18" Min.  
(457mm)  
Use noncombustible caulking material only on  
fireplace facing to seal. Also, the outside air inlet  
duct should be wrapped with noncombustible  
insulation to minimize the formation of conden-  
sation. Do not place insulation materials on top  
of fireplace or against chimney sections.  
2
.54 BTU IN/FT HR °F. At no time may a  
Fireplace  
Opening  
perpendicular side wall be located closer than  
9" from the fireplace opening.  
Canadian Installation  
If fireplace is installed diagonally across a 90°  
corner; no wall shields are required.  
Figure 45  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
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Hearth Extension Dimensions  
A
B
C
D
16"  
35"  
8"  
51"  
C
C
B
D
Note: To convert inches to millimeters  
divide by 0.03937  
A
Figure 47  
Answer - The minimum required thickness of the Micore 160 is .417” ,  
therefore round up to nearest standard thickness available which is 1/2” .  
Methods of Determining Hearth Extension and Wall Shield  
Equivalents - To determine the thickness required for the alternate  
material when either the “ k” value or “ r” value is known, use either the  
k formula or r formula.  
Listed Material  
k (per inch) r (per inch)  
Listed Min.Thickness  
Example: If Micore 160 is to be used for the hearth extension fireplace,  
how thick must this material be?  
Listed Material  
.84  
1.19  
rL  
1
"
KL  
T
L
kM = k value per inch of alternate material  
** Approved Alternate Materials for Floor/Hearth Protection  
rM = r value per inch of alternate material  
TM = minimum thickness required for alternate material  
AlternativeMaterials  
Thermal Values  
MinimumThickness  
(rounded to nearest 1/8 inch)  
T = standard thickness of the alternate material  
k (per inch) r (per inch)  
Min. Thickness  
S
KM  
rM  
TM  
kL = k value per inch of listed material  
rL = r value per inch of listed material  
Kaowool M Board  
.47  
.35  
2.13  
2.86  
.56" (1/2")  
.42" (3/8")  
Micore 160™  
U.S. Gypsum  
T = minimum thickness of listed material  
L
Micore 300™  
U.S. Gypsum  
.46  
2.17  
.52  
.55" (1/2")  
Note: An asterix “*” indicates, it is a value taken from Table 1.  
Using the k formula:  
Durock™ Cement Board  
U.S. Gypsum  
1.92  
2.29" (2-1/4")  
Minimum  
thickness of  
alternate  
k-value (per Inch) of  
alternate material (kM) x  
k-value (per inch)  
Specified min.  
thickness  
of listed  
Hardibacker™  
1.95  
2.30  
2.82  
.513  
.435  
.355  
2.32" (2-3/8")  
2.74" (2-3/4")  
3.36" (3-3/8")  
=
Hardibacker 500™  
material (TM)  
of listed material (kM)  
material (T )  
Cultered Stone Hearth-  
stone™  
L
TM (inches)  
TM (inches)  
=
=
kM  
*.84  
x
T
Wonderboard  
3.23  
.61  
.31  
3.85" (3-7/8")  
.73" (3/4")  
L
Super Firetemp M  
Johns-Manville  
1.64  
*.35  
*.84  
x
x
1"  
1"  
Super Firetemp L  
Johns-Manville  
.54  
1.85  
.64" (5/8")  
Face brick  
9.00  
5.00  
5.00  
12.5  
~11  
.111  
.20  
10.71" (10-3/4")  
5.95" (6")  
.416 (inches) =  
.416  
Common brick  
Cement mortar  
Ceramic tile  
Marble  
.20  
5.95" (6")  
Answer - The minimum required thickness of the Micore 160 is .417,  
thereforerounduptoneareststandardthicknessavailablewhichis1/2.  
.08  
14.88" (14-7/8")  
13.10" (13-1/8")  
~.09  
Using the r formula:  
Table 1  
Minimum  
thickness of  
alternate  
material  
r-value (per Inch)  
of listed material  
r-value (per inch)  
of alternate material  
Specified min.  
thickness  
of listed  
=
x
** If the hearth extension material(s) that is intended to be used is NOT listed  
on Table 1, the material can still be used if the material(s) is noncombustible.  
However, the manufacturer of the material must provide either the listed k-  
value per inch or r-value per inch with listed thickness so that the minimum  
thickness required for the hearth can be calculated (per instructions on this  
Page and/or as specified in the NFI Certification manuals).  
material  
TM (inches)  
TM (inches)  
=
=
rL  
rM  
x
x
x
T
L
Note:AlsoseeNFI(National FireplaceInstitute)CertificationManualsshowing  
other acceptable calculation methods and acceptable alternate materials  
which can be used.  
*1.19  
*2.86  
1"  
1"  
.416 (inches)=  
.416  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
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The sum of all R values” is: .70 + .10 +. 038  
+ .10 = .938  
Wall Shield Required  
Where Less Than 12"  
ThiswouldNOTbeanacceptablecombination  
of material for the hearth extension since the  
totalcalculated“Rvalue” ofthematerialsused  
is under the required R value” of 1.19. An  
additional layer of insulating materials must  
be used.  
24"  
5 1/2"  
30"  
Note: Also see NFI Certification Manuals for  
expanded explanation on calculating R val-  
ues” when multiple materials are used.  
2"  
C
Max. Thickness Of Hearth Extension When  
Circulating Models Are On The Floor  
B
D
C
A
WARNING: THE CRACK BETWEEN THE  
FIREPLACE AND THE HEARTH EXTEN-  
SION MUST BE SEALED WITH A NON-  
COMBUSTIBLE MATERIAL.  
Figure 50  
Figure 48  
Secure the hearth extension to the floor to  
prevent possible shifting.  
Calculating Minimum Thickness if Multiple  
Materials are Used  
FINISH TO YOUR TASTE  
WARNING: WHEN INSTALLING HEARTH  
EXTENSION IN FRONT OF A NON-CIRCU-  
LATING FIREPLACE MODEL, THE FIRE-  
PLACE MUST BE RAISED IF HEIGHT OF  
HEARTH EXTENSION EXCEEDS 7" ABOVE  
THEBOTTOMOFFIREPLACE(FIGURE49).  
At times it is important to know what  
combination of materials are acceptable for  
use as floor protection. The R values” are  
usedtodetermineacceptablecombinationsof  
materialsbecauseRvalues” areadditivewhere  
r and k values are not.  
There are a wide variety of finished looks” for  
these fireplaces, from formal wall decor with  
elaborate mantels to rustic wood paneling or  
warm brick facings.  
Only noncombustible materials like stone, tile,  
brick, etc., may overlap the black front facing.  
Do not extend these materials beyond the black  
facing and into the firebox area. Be sure not to  
interfere with the installation and operation of  
glass doors or block the upper or lower grilles.  
Seal all joints between the black facing and wall  
surrounds to prevent air intrusion. Use non-  
combustible caulking material only to seal the  
black metal facing to the surround material on  
the finished wall.  
“ Rvalue” = 1/k = “ r” xthicknessofmaterial  
used  
Example: Given that the required R value”  
for a suitable floor protector used must be  
equal to or greater than:  
R” = rL x T = 1.19 x 1” = 1.19.”  
7 1/2"  
L
If it is desired to elevate a marble hearth ex-  
tension to a level of 5” or more above the floor  
surface. What combination of noncombus-  
tible materials can be used to accomplish this?  
Max. Thickness Of Hearth Extension When  
Non-Circulating Models Are On The Floor  
Combustible materials may project beyond the  
sides of the fireplace opening as long as they  
are kept within the shaded areas illustrated in  
Figure 51.  
Figure 49  
WARNING: WHEN INSTALLING THE  
HEARTH EXTENSION BE CAREFUL NOT  
TO BLOCK THE HEAT-CIRCULATING AIR  
INLETGRILLONCIRCULATINGMODELS.  
If common brick is used so that the 3 1/2”  
dimension is the height, Rfor the common  
brick becomes:  
Combustible  
Materials  
brick  
Fireplace  
Allowed In  
RM = rM x TS = 0.20 x 3 1/2" = .70  
Shaded Area  
Safe Zone”  
1"  
7"  
WARNING: WHEN INSTALLING HEARTH  
EXTENSION IN FRONT OF A CIRCULAT-  
INGFIREPLACEMODEL, THEFIREPLACE  
MUST BE RAISED IF HEIGHT OF HEARTH  
EXTENSIONEXCEEDS2"ABOVEBOTTOM  
OF FIREPLACE (FIGURE 50 ).  
Using 1/2” of mortar to set the brick, Rfor  
the mortar is calculated as follows:  
mortar  
45°  
12"  
Min. Distance To  
Protected Side Wall  
RM = rM x TS = 0.20 x 1/2" = .10  
7"  
Min. Distance To  
Unprotected Side Wall  
Next, a 3/4" marble slab set in 1/2" mortar cov-  
ers the brick, “Rfor the marble and mortar  
becomes:  
12"  
Figure 51  
marble  
RM = rM x TS = 0.05 x 3/4" = .038  
mortar  
RM = rM x TS = 0.20 x 1/2" = .10  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
18  
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INSTALLATION COMPONENTS  
(FBK-200 Models Only)  
The following items are available for use in the  
installation of this appliance.  
Chimney Section  
63L10  
63L13  
63L14  
63L15  
FTF8-12  
FTF8-18  
FTF8-36  
FTF8-48  
Forced Air Blower Kits  
-Single Speed  
-Variable Speed  
80L84  
80L85  
FBK-100  
FBK-200  
Firestop Spacer (30°)  
Firestop Spacer (30°)  
63L30  
63L32  
F8FS30  
F8FS30-2**  
Canadian  
Chimney Section  
62L92  
62L93  
FTF8-18C  
FTF8-36C  
63L38  
63L39  
F8F6  
F8F12  
Offset/ Return  
Package (30°)  
Flashing  
63L22  
FTF8-ES30  
Outside Combustion Air Kits  
(with duct)  
FOAK  
(without duct)  
FOAK-LD  
Round Termination  
63L42  
FTF8-CTD  
Stabilizer  
63L25  
FTF8-S4  
Firestop Spacer (Flat)  
Firestop Spacer (Flat)  
63L29  
63L31  
F8FS  
F8FS-2**  
Storm Collar  
63L59  
FSC  
Unit Mounted  
Blower Switch Kit  
91L48  
FUBSK  
Combination  
Offset/Return Elbow  
Cold Climate Kits  
63L61  
FTF8-CCK1-LD**  
Shipping Weight  
175 lbs.  
63L28  
FTF8-OR15  
**Note: 2" clearance required for Canadian  
Installation - as applicable.  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
19  
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INSTALLATION COMPONENTS  
Chase Termination  
(Square)  
Chase Termination  
(Square)  
63L48  
FTF8-CT1  
63L51  
FTF8-CT2  
Attic Shield Assembly  
63L67  
FTF8-FSAS**  
**Note: 2" clearance required for Canadian  
Installation - as applicable.  
Chase Termination  
(Round)  
Locking Band  
63L60  
FLB  
63L45  
FTF8-CTDT  
The manufacturer reserves the right to make changes at any time, without notice, in design, materials, specifications, prices and also to discontinue colors, styles and products.  
Consult your local distributor for fireplace code information.  
LHP  
Printed in U.S.A. © 2007 by LENNOX HEARTH PRODUCTS  
1110 West Taft Avenue  
P/N 700,040M REV. A 02/2008  
Orange, CA 92865  
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