Lennox Hearth Products COLONIAL COL-3629 User manual

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 1
36" Wood Burning Fireplaces
P/N 850,005M REV. F 01/2007
COL-3629 COL-3629H
MODELS
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
WH Report No. J20054576-231
COLONIAL SERIES
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.
INSTALLATION
INSTRUCTIONS

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2
TABLE OF CONTENTS
Safety Rules .................................... page 2
Tools and Building Supplies ............ page 2
Precautions ..................................... page 3
Introduction ..................................... page 3
Clearances/Height Requirements..... page 3
Chimney System ............................. page 3
Assembly Outline............................. page 4
Location of Fireplace ....................... page 4
Assembly Steps ............................... page 5
Preinstallation Notes........................ page 5
Clearances ....................................... page 5
Installing the Fireplace ..................... page 5
Fireplace Specifications .................. page 6
Framing Specifications.................... page 7
Installing the Chimney System ........ page 8
Ten Foot Rule Summary .................. page 10
Multiple Terminations ...................... page 11
Chimney Component Calculations ... page 11
Special Offset Instructions............... page 11
Offset Calculations........................... page 12
Vertical Elevation Chart ................... page 13
Offset Elevation Chart ..................... page 13
Installing Offsets.............................. page 14
30°Offset through Floor/Ceiling ...... page 14
Optional Equipment Considerations. page 14
Combustion Air Kits ........................ page 14
Glass Doors ..................................... page 15
Gas Line Connection........................ page 15
Vent Free Appliances ....................... page 15
Cold Climate Insulation.................... page 15
Fireplace Finishes ............................ page 15
Mantels and Trim............................. page 15
Hearth Extensions/Wall Shields ....... page 16
Finish Requirements ........................ page 18
Installation Components .................. page 18
IMPORTANT: PLEASE READ AND
UNDERSTAND THESE RULES TO
FOLLOW FOR SAFETY.
1. Before starting your fireplace installation,
read these installation instructions carefully to
besure you understandthemcompletely and in
entirety. Failure to follow them could cause a
fireplacemalfunction resulting inseriousinjury
and/or property damage.
The manufacturer is not responsible for any
smoking or related problems that may result
from the lack of adequate combustion air. It is
the responsibility of the builder/contractor to
ensure that adequate combustion air has been
provided for the fireplace.
13. DO NOT use a fireplace insert or any other
products not specified herein by the manufac-
turerforuse with this fireplace. All gas log sets
must be operated with the damper clamped
open, including unlisted “vent free” log sets.
Listed “vent-free” log sets may be operated
with the damper closed.
14. "Smoke free” operation is not warranteed
nor are we responsible for inadequate system
draft caused by mechanical systems, general
construction conditions, inadequate chimney
heights, adverse wind conditions and/or un-
usual environmental factors or conditions be-
yond our control.
15. Never, under any circumstances, install a
fireplace, chimney component or any acces-
sories, that has visible or suspected physical
damage as a result of handling or transporta-
tion. These items should be inspected by your
distributor or qualified factory representative
to ensure safe condition. When in doubt, con-
sult your distributor.
16. For additional safety considerations and
complete operating instructions, refer to the
Care and Operation Manual provided with the
fireplace.
TOOLS AND BUILDING SUPPLIES
NORMALLY REQUIRED
Tools should Include:
Phillips screwdriver
Hammer
Saw and/or sabersaw
Level
Measuring tape
Plumb line
Electric drill and bits
Pliers
Square
Building supplies:
Framing materials
Wall finishing materials
Caulking materials (noncombustible)
Fireplace surround and hearth
extension materials (noncombustible)
2. Always check your local building codes. The
installationmustcomplywithalllocal,regional,
state and national codes and regulations.
3. These fireplaces must be installed with
Security Chimneys FTF10 [10" (250 mm) in-
side diameter] Chimney System only. These
systems are intended for use in any applica-
tion where a traditional masonry type fireplace
would apply. The chimney system must al-
ways vent to the outside of the building.
4. To ensure a safe fireplace system and to
preventthebuild-upof sootandcreosote, inspect
and clean the fireplace and chimney prior to use
and periodically during the heating season.
5. Use solid fuel only. DO NOT use chemical
chimney cleaners or flame colorants in your
fireplace.
Never burn treated construction lumber or
scraps. These woods burn excessively hot
and may contain chemicals used to treat
insects and fungus. When burned, these
chemicals can pose a significant hazard.
6. DO NOT use charcoal or coal under any
circumstances.
7. NEVER use gasoline, gasoline-type lantern
fuel,kerosene, charcoallighterfluid, orsimilar
liquids to start or “freshen up” a fire in this
fireplace. Keep any flammable liquids at safe
distance from the fireplace.
8. NEVER leave children unattended when
there is a fire burning in the fireplace.
9. Always keep flue damper open when heat is
present in the fireplace.
10. Before servicing, allow the fireplace to
cool. Always shut off any electricity or gas to
the fireplace while working on it. This will
preventany possible electrical shockorburns.
11.Thisfireplaceisnotintendedtoheatanentire
home or be used as a primary heat source. It is
designed to ensure homeowner comfort by pro-
viding supplemental heat to the room.
12. Always ensure that an adequate supply of
replacement combustion air from the outside
of the house is accessible to the fire to support
normal combustion. Fireplaces consume large
volumes of air during the normal combustion
process. In the event the home is tightly sealed
with modern energy efficient features, the op-
tionalcombustionair kit may not provide all the
air required to support combustion.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 3
Figure 1
TYPICAL INSTALLATION
*Construction Materials:
• framing materials • paneling
• particle board • flooring
• dry wall • etc.
• plywood
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.
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,hearthextensions andwall shields.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.
IMPORTANT:WHENINSTALLINGINCANADA,
THE CHIMNEY AIR KIT MUST BE INSTALLED
PER THE WARNOCK HERSEY INC. LISTING.
IMPORTANT: THE MINIMUM AIR SPACE TO
COMBUSTIBLES FOR THE CHIMNEY SYSTEM
IS 2" (51 MM).
INTRODUCTION
General Information
These fireplaces are conventional radiant heat
fireplaces with standard bar grates, optional
outsidecombustionairkitsandoptionaldeco-
rative glass doors.
Note:Illustrations shown reflect“typical” instal-
lations with nominal dimensions and are for
designand framingreferenceonly. Actualinstal-
lations may vary due to individual design prefer-
ences.However,alwaysmaintainminimumclear-
ances to combustible materials and do not vio-
late any specific installation requirements.
The Colonial Series fireplaces have been tested
and listed by Warnock Hersey Inc. (Report No.
J20054576-231) to U.L. 127 standard for U.S.
installationsand U.L.C. S610 standard for Cana-
dian installations. These units are intended for
installationin residential homes andbuildingsof
conventionalconstruction,notinmobilehomes.
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
andinaccordancewithcodessuchastheBOCA
Basic/National Codes, the Standard Mechani-
cal Code, Uniform Building Codes and/or the
Canadian National Code.
CLEARANCES AND HEIGHT
REQUIREMENTS
The fireplace may be placed on or near normal
construction materials*. The combustion air
kit,firestopspacerandroofflashings(notchase
flashings) may be placed directly on or against
normal construction materials*. The chimney
requires a minimum 2" (51 mm) air space to
combustibles. A combustible mantle may be
installed a minimum of 12" (305 mm) above the
opening of the fireplace as per NFPA 211, Sec-
tion7-2.3.3. InCanadathe minimumis24" (610
mm) above the opening.
The fireplace and chimney system must be
enclosed when installed in or passing through
a living area where combustibles or people may
come in contact with it. This is important to
prevent possible personal injury or fire hazard.
Forquestions, pleasecallyour distributor orthe
manufacturer. Special restrictions apply to the
front and facing of the fireplace and nearby
walls (See pages 16 and 17 ).
CHIMNEY SYSTEM
These fireplaces are designed and code listed
forusewithSecurity ChimneysFTF10chimney
System only. Always use Security Chimneys
FTF10 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.
Chimney
and
Termination
Chimney
Air Kit
(Canada Only)
Optional Position
Outside
Combustion
Air Kit
(Optional)
WARNING: FAILURE TO USE MANUFAC-
TUREPROVIDED PARTS, VARIATIONS IN
TECHNIQUES AND CONSTRUCTION MA-
TERIALS OR PRACTICES OTHER THAN
THOSE DESCRIBED IN THIS MANUAL
MAY CREATE A FIRE HAZARD AND VOID
THE LIMITED WARRANTY.
Whencompletethesefireplacesystemsconsist
of five basic “sub-systems”:
1. The Fireplace
2. The Chimney and Termination
3. The Optional Glass Doors
4. The Optional Combustion Air Kit
5. The Chimney Collar Enclosure Kit (Canada
Only)

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4
Figure 2
LOCATION OF FIREPLACE
Carefully select the proper location for heat
circulation, aesthetics, chimney obstructions
and clearance to side wall(s). With proper pre-
planning, a slight adjustment of a few inches
can save considerable time and expense later
during construction and assembly.
Chase Enclosure
A chase is a vertical box-like structure con-
structedtosurround thefireplaceandchimney.
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.
ASSEMBLY OUTLINE
Before You Start
Check your inventory list to be sure you have all
the necessary parts supplied in good usable
condition.Checkalsoforanyconcealed damage.
Checktheoperationofthedamper. Thedamper
is controlled through the use of a control lever
located within the firebox opening at the top
center just behind the firebox lintel ( Figure 3 ).
Push back and up (away from the front of the
fireplace) to lock the damper blade in the
OPEN position. To lock the damper in the
CLOSED position, the damper handle needs
to be pulled forward and up (towards the
front of the fireplace).
Figure 3
Insulate Joists
Same as Ceiling
Draft Stops
F10FS-2 Firestop
FTF10-CTDTM
Termination
Note: Non-
Combustible
Chase
Flashing
Must be
Used to
Cover
Chase
Opening
Optional
Insulation
in Outside
Walls of
Chase
Solid
Continuous
Surface
Outside
Base
Insulation
(Thermal Barrier)
8'
(2.4m)
Level
Hearth
Hearth
Optional
Outside
Chase
Figure 4
Carefully consider the position of the fireplace
opening with respect to the location of adja-
cent or nearby stairwells, bath or kitchen ex-
haustfansand/or returnairregistersforforced
air furnaces/air conditioners that could cause
a smoking fireplace condition if the house is
tightly insulated.
Whenlocatingthefireplace,considerationmust
be given to combustibles and final finishing.
See
Figure 5 and confine the final location of
combustiblefinishmaterialstothe"Safe Zone".
Damper
Closed Damper
Open
Lintel
Combustion
Air Actuator
Note: Do not insulate the chase cavity with
blown or fill type insulation materials.
CHIMNEY HEIGHT
The total height of your completed fireplace sys-
tem from the surface the fireplace rests on to the
chimney top must not exceed 80' (24.4m) and
must also meet minimum height requirements.
Refer to the minimum system height chart.
Minimum System Height
Security's FTF10 Pipe
Vertical 16' 0"
Installation (4.8 m)
One 18' 6"
Offset (5.6 m)
Two 22' 0"
Offsets (6.7 m)
Note: Localcodes may not require firestopping
at the ceiling levels for outside chase installa-
tions. However, it is recommended for safety
and the reduction of heat loss.
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.
WARNING: DO NOT PACK OR FILL RE-
QUIRED AIR SPACES WITH INSULATION
OR OTHER MATERIAL. NO MATERIAL IS
ALLOWED IN THESE AREAS.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 5
DO NOT permanently place furniture or other
items such as decorative pillows within 60" of
the fireplace front face.
ASSEMBLY STEPS
Note:The following steps represent the normal
sequence of installation. Each installation is
unique, however, and might require a different
sequence.
1. Position firebox prior to framing or into
prepared framing.
2. Install chimney air kit (Canada only).
3. Install the chimney system.
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.)
6. Complete the installation, finish wall mate-
rial, surround and hearth extension to your
individual taste.
7. Assemble and attach optional glass door
assembly.
Study the three dimensional illustration ( Fig-
ure 1 ) to get a general idea of each element of
your fireplace system.
PRE-INSTALLATION NOTES
The fireplace may be installed directly on a
combustible floor or raised on a platform of 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.
Figure 5
Figure 7
Figure 6
INSTALLING THE FIREPLACE
Step 1. Slide the fireplace into prepared fram-
ingor position fireplace in itsfinalpositionand
frame later.
Step 2. Insert the metal safety strips, packaged
with the fireplace, beneath the fireplace as
illustrated (
Figures 6 and 7 ). The safety strips
should overlap 1" (25 mm) for continual cover-
age of the floor.
Note: Safety strips are not required when fire-
place rests on a noncombustible surface.
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.
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.
Usually, no special floor support is needed for
the fireplace, however, to be certain:
1. Estimate the total weight of the fireplace
system including chimney and surround ma-
terials such as brick, stone, etc., to be in-
stalled. Shippingweights forthefireplace may
be found on page 17.
2. Measure the square footage of the floor
space to be occupied by the system, surrounds
and hearth extensions.
3.Notethefloor construction,i.e.2x6’s,2x8’s
or 2 x 10’s, single or double joists, type and
thickness of floor boards.
4. Use this information and consult your local
building code to determine if you need addi-
tional support.
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.
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.
CLEARANCES
Minimum clearance to combustibles for the
Colonial fireplace is as follows; sides and back
–1"(25.4mm),combustiblefloor–0"(0mm),
adjacent wall 18" (457 mm), adjacent shielded
wall ( K factor of .84 or less 24" W x 36" H ) 12"
(305 mm), ceiling – 37 ¹⁄₂" (953 mm).
Note: Clearance at the nailing flange for both
fireplace models is 0" (0mm).
Note: Adjacent wall considerations are for an
adjacent wall on only a single side. Walls
should not be placed at minimum distance at
both sides of the fireplace.
Note: Install the hearth extension only as
illustrated.
The safety strips should extend from front and
sides of the fireplace 2" (51 mm). In the event
a wooden support is used to elevate the fire-
place above the floor, a “Z” type safety strip
should be fabricated and used to protect the
front surface of the wood support as well as
the floor beneath the hearth extension ( see
Figures 8 and 9 ). The safety strips should be
tacked down to prevent possible movement.
Combustible
Wall
Metal
Safety Strip
Hearth
Extension
Floor
1"
(25mm)
Zero Clearence
to Rear and
Side Spacers
Combustible
Wall
Metal
Safety
Strip
Hearth
Extension
Floor
Platform
1"
(25mm)
Wall
Covering
Black Portion Of Frame
Not To Be Covered With
Combustible Materials
Safe
Zone
15°
4 ³⁄₄”
18”
Door
Opening
¹⁄₂”

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
6
Step 3. Refer to fireplace drawings and specifi-
cationson pages 6 and7forframing dimensions
and details. Frame appliance enclosure as illus-
trated in Figures 12 through 15 on page 7.
IMPORTANT: UNDER NO CIRCUMSTANCES
CAN THE FIREPLACE TOP SPACERS ( SEE
FIGURE 11 ) BE REMOVED OR MODIFIED,
NOR MAY YOU NOTCH THE HEADER TO FIT
AROUND OR BE INSTALLED LOWER THAN
THE SPACERS. THE HEADER MAY BE IN DI-
RECT CONTACT WITH THE TOP SPACERS
BUT MAY NOT BE SUPPORTED BY THEM.
Step 4. Fireplace may be anchored to floor.
Bend down four (4) anchor tabs located at the
base of the fireplace and secure to the floor by
nailing with 8d nails ( Figure 10 ).
Note: The “Z” type safety strip is not supplied.
Figure 8
Figure 9
Figure 10
Anchor
Tab
Metal Safety Strips
with 1" (25mm)
Overlap
2"
(51mm)
Special “Z” Metal
Safety Strips with 1"
(25mm) Overlap
2"
(51mm)
Blocking
Platform
FIREPLACE SPECIFICATIONS
Figure 11
15" O.D.
(381 mm)
6 ⁹⁄₁₆"
(167 mm)
5 ⁵⁄₁₆"
(150 mm) 36"
(914 mm)
29"
(737mm)
42 ⁹⁄₁₆"
(1081 mm)
7"
(178 mm)
66 ¹⁄₁₆"
(1678 mm)
10 ³₄"
(273 mm)
47 ¹⁄₈"
(1197 mm)
10 ⁵⁄₈"
(270 mm)
8 ³⁄₄"
(222 mm)
11"
(279 mm)
66 ¹⁄₁₆"
(1678 mm)
4 ¹⁄₂"
(114 mm)
47 ¹⁄₈"
(1197 mm)
10 ⁵⁄₈"
(270 mm)
8 ³⁄₄"
(222 mm)
4 ¹⁄₈"
(105 mm)
37 ¹⁄₄"
(946 mm)
11"
(279 mm)
29 ⁷⁄₁₆"
(748 mm)
47 ⁷⁄₈"
(1216 mm)
Front View
Top View
Right Side
Left Side

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 7
Note: The framed depth, 28 ¹³⁄₁₆ " (732mm) from
a framed wall, must always be measured from a
finishedsurface.Ifawallcoveringsuchasdrywall
is to be attached to the rear wall, then the framed
depth must be measured from the drywall sur-
face. It is important that this dimension be exact.
Iftheapplianceistobeelevatedabovefloorlevel,
asolidcontinuousplatformmustbeconstructed.
The header may rest on the top metal spacers,
but must not be notched to fit around them.
Consult all local codes.
Figure 12
Figure 13
A48" (1219 mm)
B147 ¹⁄₄" (1200 mm)
B266 ¹⁄₂" (1689 mm)
C37 ¹⁄₄" (946 mm)
D18 ⁵⁄₈" (473 mm)
E94 ⁷⁄₈" (2410 mm)
F47 ⁷⁄₁₆" (1205 mm)
G28 ¹³⁄₁₆" (732 mm)
J17 ¹⁄₂" (445 mm)
K67" (1702 mm)
Framing Dimensions
Figure 16
Flue Type A B
FTF10 19" 19"
Vertical (483 mm) (483 mm)
FTF10 30°19" 29"
Offset (483 mm) (737 mm)
Framing Dimensions for Ceiling
Figure 14
Figure 15
Pitch C D*
0/12 19" 19"
(483 mm) (483 mm)
6/12 19" 22"
(483 mm) (559 mm)
12/12 19" 27"
(483 mm) (686 mm)
*Perpendicular to roof ridge
Figure 17
Framing Dimensions for Roof
A
B
1
B
2
Header
False Header
Fireplace Framing
FOAK-4 Combustion
Air Kit
G
A
J
Outside Chase
Back Wall of Chase/Enclosure
Including Finishing Materials
if any
Rough Framing Face
(Unfinished Shown)
A
E
G
F
D
C
K
FOAK-4
Back Wall of Chase/Enclosure
Including Finishing Materials if any
Rough
Framing Face
(Unfinished Shown)
Corner Installation
A
B
Ceiling Framing
C
D
Roof Framing
G
A
FOAK-4
Inside Chase
Back Wall of Chase/Enclosure
Including Finishing Materials
if any
Rough Framing Face
(Unfinished Shown)

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
8
Step 5. Fireplace should be secured to side
framing members using the full length nailing
tabs at the top and bottom of the fireplace front
face. Use 8d nails or equivalent ( Figure 18 ).
Figure 18
Note: The nailing tabs and the area directly
behind the nailing tabs are exempt from the
clearances described on page 5. Maintain at
least1/2" clearance from the firebox wrapper to
the framing at the closest point of contact,
directly adjacent to the flange.
For Canadian Installations
Proceed with Steps 6–9
Step 6. Remove one of the knockouts from the
fireplace transition and attach the 4" (102 mm)
collar from the air kit to the transition with four
(4) No. 8 x ¹⁄₂" screws provided ( Figure 19 ).
Figure 20
Step 3. Position appropriate firestop spacer at
ceiling and nail temporarily with two (2) 8d
nails. Use flat firestop spacer, Model F10FS-2,
ifchimneypenetratesceilingvertically.Ifchim-
ney penetrates ceiling at 30°angle (offset
chimney), use 30°firestop spacer, Model
F10FS30-2 (refer to page 14 and Figures 42
and43 ). Useonenail onoppositesides tohold
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 nec-
essary adjustments have been made. Firestop
spacer must be secured by at least four (4) 8d
nails when completely installed.
Note: If there is a room above ceiling level,
firestop spacer must be installed on the bottom
side of the ceiling. If an attic is above ceiling
level, firestop spacer must be installed on top
side of ceiling joist (Figures 21 and 22 ).
Firestop Spacer
Room Above
Firestop Spacer
Attic Above
Nailing Tab
8d Nail
Framing Stud
Figure 22
Note: If the fireplace is installed against an
insidewall,theClass0airductmaybeextended
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. Ensure nothing blocks the hood
opening. This air duct must never terminate
higher than the chimney.
Step 9. Cut or frame hole through the outside
wall for the installation of the duct inlet hood. A
4¹⁄₂" (114 mm) diameter hole is sufficient. Feed
the loose end of the flexible duct through the
holecutfortheinlethood andattach tocollaron
inlet hood using two (2) No. 6 x ³⁄₈" screws
provided. Insert hood into opening. Secure
hood in place with the No. 8 x 1 ¹⁄₂" screws
provided or with nails driven through holes in
hood flange. Seal with noncombustible water-
proof silicon type caulking. If additional duct is
needed, use Class 0 metallic duct.
INSTALLING THE CHIMNEY SYSTEM
Step 1. Before continuing, check the operation
of the damper, as described on page 4, (
refer to
Figure 3
).
Step 2. Using standard construction framing
techniques,constructopeningforchimneyroute
upthroughtheceiling(s)androoforthroughan
outside chase.
Framing must maintain adequate minimum air
space clearance at all times.
CAUTION: ALLOW MINIMUM 2" CHIMNEY
AIRSPACETOCOMBUSTIBLEFRAMINGMEM-
BERS THROUGHOUT VERTICAL OR OFFSET
CHIMNEY INSTALLATION.
A minimum 2" air space must be reserved for
all combustible materials extending for any
continuous length surrounding the chimney.
Reference
Figures 16 and 17 and charts Fram-
ing Dimensions for Ceiling and Roof, which
specify minimum ceiling and roof dimensions.
In new construction, to determine chimney cen-
terline,use plumb line from roof or ceiling above
fireplace to center of flue collar on fireplace.
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) (
Figure 20 ). Then plumb from ceiling or
roof level directly above hole which has just
been completed.
Optional
Connection
Chimney
Air Kit
Figure 19
Step 7. Connect the 4" (102 mm) Class 0 air
ducttothe collar with two (2) No. 8 x ¹⁄₂" screws
provided in the hardware kit.
Step 8. Route the Class 0 air duct out the back
wall or side wall, up through the ceiling or floor
joists to an outside wall. The air duct should be
located above snow level.
Plumb Line
Figure 21

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 9
Step4. Note: Chimneysectionsareconstructed
with a unique locking tab design, which en-
sures an immediate, tight assembly between
sections.Planyourchimneyrequirementscare-
fully before assembly as chimney is difficult to
disassembleafterinstallation.If disassembled,
the tabs might become damaged. Be certain
tabsareproperlyformedtoensure locking tabs
engage properly.
Security Chimneys FTF10 chimney system is a
two piece chimney, which snap together from
thefireplace up. Startwiththe inner fluesection
with the lanced end up, snap lock it in to the
matching collar on top of the fireplace. At all
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.
If the flue has been installed correctly, it will not
separate when you test it. Also, the inner flue
joint where each section is joined should be
tight and flat without gaps (
Figure 24 ).
FTF8-S4 Stabilizer
Figure 24
Locking
Tabs
(Lances)
Figure 25
Install the Model FTF10-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
framedopening and nail straps securely (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 (
Figure 27 ).
Figure 27
Note: Assemble one component of chimney at
a time (inner section first, then outer section
last) before proceeding with the next complete
section.
Continue to assemble the chimney up through
framedopening.Assemblejust enough to pen-
etrate the roof flashing openings ( Figure 26 ).
Alwaysmaintain 2" minimum air space tocom-
bustiblematerialsandalwayscheckeachchim-
ney joint (inner and outer) to ensure proper
engagement.Checkverticalalignmentofchim-
ney so that it projects from the roof in true
vertical position.
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 25 ).
For Canada Only
When installing the chimney system through
an open attic space, the attic shield assembly-
firestop spacer must be used ( Figure 23 ). This
installation procedure is Warnock Hersey Inc.
listed only for use in Canada.
Figure 23
Open Attic Space
Figure 26
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 12, Figure 38 ).
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 FTF10-S4 stabilizer in-
stalled at 30' intervals.
Note:TheModelFTF10-S4adds3"neteffective
height to the total chimney system.
2" (51mm) Min. Air Space
to Combustibles
Note: Do not apply excessive pressure to any
subsequentchimneysectionsfollowingthesta-
bilizerwheninstalling.Ensureeachsubsequent
chimney section is securely attached by testing
as noted in Step 4.
Step 6. Select the proper Security Chimneys
roof flashing based on pitch of roof. Use chart
below for selection:
Roof Pitch Model
Flat to 6/12 F10F6
6/12 to 12/12 F10F12
Next,slideroof flashingover extendedchimney
sectionthatpreviouslyhasbeeninstalledabove
the roof opening in Step 4. FTF10 flashings
require flashing spacers. Slide flashing all the
way down until the flashing base rests flat on
the roof ( Figure 28 ). Again, check the vertical
position of the chimney and the 2" minimum air
space to combustibles.
Figure 28
Note:Donotcaulkorsealtheventilatingopenings.
FTF10 Chimney
FTF10 Flashing
Flashing Spacers
Do Not Seal

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
10
Locking Band
Mastic
Roof Ridge
120°
Step8.ThestandardSecurityChimneys FTF10
roofflashing assemblies includeastorm collar.
Slide the storm collar over outer chimney, rest
on flashing spacers and align with top surface
offlashing. 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 30 ).
Check all joints very carefully to ensure no
water intrusion can take place.
Figure 31
Figure 29
Step 7. Secure flashing by nailing along the
perimeter into roof using 8d nails. If shingled
roof, slide upper end and sides of roof flashing
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 caulk-
ing (
Figure 29 ).
Figure 30
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 the chimney extends more
than 6' above the roof flashing, the use of
locking bands is advisable to strengthen the
chimney assembly. Align the locking band at
thechimneyjoint.Locking bandswraparound
pipe joints equally covering the joints of both
pipe sections.
Step 10. Using the FTF10-CTDTM Round
Termination:
1.HoldCTDTMovertopoflastchimneysection
(
Figure 32 ).
2. Center inner slip section in inner flue pipe-
slip down.
3. Center outer locking section over outer flue
pipe. Push down until locking tabs are firmly
engaged.
4. Pull up slightly on CTDTM to ensure locking
joint has firmly engaged.
Figure 33
Note: It is recommended that all exterior ex-
posedrelatedmetalfireplacecomponents;such
as terminations, flashings, storm collars and/
orflue bepaintedwith apremium-quality,high-
temperature, rust-preventative paint designed
for metal. This is especially important when
installationsaremadeinabnormallyadverse or
corrosive environments; such as near lakes,
oceans or in areas with consistently high-hu-
midity conditions. Consult the paint manufac-
turers instructions for proper preparation and
application.
ForCanadianinstallations,allchimneyinstalled
outside the building must be galvalume (outer
sections only), effective January 1, 1992. The
appropriate model designations (with a “C”
suffix) are located in the back of this manual.
TEN-FOOT RULE SUMMARY
The minimum chimney height above the roof
and/or to adjacent walls and buildings is speci-
fied by all major building codes.
If the horizontal distance from the peak of the
roof is less then 10' (3 m), the top of the
chimney must be at least 2' (610 mm) above
the peak of the roof.
If the horizontal distance from the chimney
edge to the peak of the roof is more than 10'
(3 m), a chimney height reference point is
established on the roof surface 10' (3 m) hori-
zontally from the chimney edge. The top of the
chimney must be at least 2' (610 mm) above
this reference point. In all cases, the chimney
cannot be less than 3' (914 mm) above the roof
at the edge of the chimney.
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-
verse wind conditions, etc., may require a taller
chimney should the fireplace not draft properly
( see Figure 35 ).
FTF10-CT2RS
Termination 2" (51mm) Min. Air Space to
Combustibles
Studs Above
Roof
20"
(508mm)
Use the nut provided and TIGHTEN snugly. Do
notovertightenasthismightdamagethechim-
ney section (
refer to Figure 30 ).
Note: If chimney extends more than 8' above
roofsurface, guy wires are also recommended.
Use three (3) guy wires, attach to locking band
assembly, extend and secure to roof in a trian-
gular pattern (Figure 31 ). Guy wires are not
supplied by the manufacturer.
Figure 32
Using a CT2 Chase Termination
Refertospecificinstallationinstructionincluded
with the CT2 chase termination for clearance
statements and installation details.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 11
MULTIPLE TERMINATIONS
If more than one termination is located in the
samechaseorwithinthesame general proxim-
ity, we suggest they should be separated in
distance at least 24" (610 mm) horizontally
from flue center to flue center and stacked or
staggeredverticallyatleast18"(457mm)apart,
from the termination of one smoke exit to the
termination of another smoke exit ( Figure 34 ).
18"
(457mm)
18"
(457mm)
24"
(610mm)
Figure 34
This suggestion is provided in the interest of
better operation. If the terminations are located
too close to each other, smoke may migrate
from one flue into the other.
FTF10 CHIMNEY COMPONENT
CALCULATIONS
Theminimum installed height of the completed
fireplace fireplace system is 16'0" (4.8 m). The
maximum system height is 80'0" (24.38 m).
Figure 35
3' Min.
(916mm)
Less Than 10' (3m)
2' Min. (610mm) 2' Min. (610mm)
2' Min.
(610mm)
To determine the number of chimney sections
andchimneycomponentsrequired,followthese
steps:
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.
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:
The Fireplaces = 65 ¹⁄₄" (1657 mm)
FTF10-12 = 10 ¹⁄₄" (260 mm)
FTF10-18 = 16 ¹⁄₄" (413 mm)
FTF10-36 = 34 ¹⁄₄" (870 mm)
CTDTM Termination = 10" (254 mm)
CT2 Termination = 15" to 23"
(381–584 mm)
S4 Stabilizer * = 3" (76 mm)*
* Required for every 30' (9.1 m) of vertical
chimney and/or 10' of offset chimney.
4. Determine amount of chimney height re-
quired by subtracting total combined height of
all pre-selected components (fireplace and
chimneycomponentsfromtotaldesiredheight.)
Reference Vertical Elevation Chart and deter-
minethe number of chimney sections (quantity
and length) required.
SPECIAL OFFSET INSTRUCTIONS
To clear any overhead obstructions, you may
offset your chimney system using Security's
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 fire-
place flue collar.
The offset and return elbows may be attached
together, or a section or sections of chimney
may be used between, but must not exceed
20' (6.1 m) in total length between elbows
(
Figure 36 ). If sections of pipe exceed 10' (3
m)between elbows,achimney stabilizermust
be used at the midpoint. The stabilizer sup-
port 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 chimney used
between elbows cannot exceed 20' (6.1 m)
( Figure 37 ). Example: If C1 = 10' (3 m) then
C2 cannot exceed 10' (3 m).
If an offset exceeds 6' (1.8 m) in length, each
chimney joint beyond the first 6' (1.8 m) of
offset to the return elbow, must be secured by
a No. 8 x ¹⁄₂" sheet metal screw located at the
underside of the joint ( Figure 38 ).
A ¹⁄₈" (13 mm) diameter hole must be drilled in
the chimney joint using a ¹⁄₈" (13 mm) diam-
eter 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.
Maximum offset of chimney system is 30°.
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, provided the total height of the sys-
tem exceeds 22' (6.7 m) ( Figure 42 ).
Return elbow support straps must be securely
attached under tension (in shear) to structural
framing members above. Do not substitute a
FTF10-30 offset elbow in place of a FTF10-E30
return elbow.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
12
Figure 38
Figure 40
OFFSET CALCULATIONS
Step 1. Use Offset Chart to determine amount
of horizontal offset (A) and height (B) for
various chimney section assemblies.
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.
Step 3. Use Elevation Chart as job estimator
only. Add necessary firestop spacers and sta-
bilizers as required. Firestop spacers must be
used as shown in
Figures 21 and 22 and
stabilizers as shown in
Figure 27 .
Figure 36
Stabilizer
A
1
20' Max.
(6m)
B
1
10' Max.
(3m)
Figure 37
A
1
C
1
B
1
B
2
C
2
A
2
A
1
C
1
B
1
B
2
C
2
A
2
Figure 39
FTF10 Chimney
Joints
No. 8 x ¹⁄₂" SMS
Screws Required at
Every Joint Past 6'
No Screws Required in
Joints for First 6' of Offset
4' (1.2m)
6' (1.8m)
Underside of Chimney
FTF10-E30*
Return Elbow
FTF10 Chimney
Section (s)
FTF10-30*
Offset Elbow
A
B
65 ¹⁄₄"
(1657mm)
* Part of Offset/Return Package, Model FTF10-ES30

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 13
397 ¹⁄₄ 33 1 ¹⁄₄ 2011
403 ¹⁄₄ 33 7 ¹⁄₄ 1111
411 34 3 0 0 12
421 ¹⁄₄ 35 1 ¹⁄₄ 1012
427 ¹⁄₄ 35 7 ¹⁄₄ 0112
431 ¹⁄₂ 35 11 ¹⁄₂ 2012
437 ¹⁄₂ 36 5 ¹⁄₂ 1112
445 ¹⁄₄ 37 1 ¹⁄₄ 0013
455 ¹⁄₂ 37 11 ¹⁄₂ 1013
461 ¹⁄₂ 38 5 ¹⁄₂ 0113
465 ¹⁄₂ 38 9 ¹⁄₂ 2013
471 ¹⁄₂ 39 3 ¹⁄₂ 1113
479 ¹⁄₂ 39 11 ¹⁄₂ 0014
489 ¹⁄₂ 40 9 ¹⁄₂ 1014
495 ¹⁄₂ 41 3 ¹⁄₂ 0114
499 ³⁄₄ 41 7 ³⁄₄ 2014
505 ³⁄₄ 42 1 ³⁄₄ 1114
513 ¹⁄₂ 42 9 ¹⁄₂ 0015
523 ³⁄₄ 43 7 ³⁄₄ 1015
529 ³⁄₄ 44 1 ³⁄₄ 0115
Height Of Number Of FTF10
Chimney Only Chimney Lengths
Inches Feet/Inches 12" 18" 36"
11 011 100
17 15 010
21 ¹⁄₄ 19¹⁄₄ 200
27 ¹⁄₄ 23¹⁄₄ 110
33 ¹⁄₄ 29¹⁄₄ 020
35 211 001
37 ¹⁄₄ 31¹⁄₄ 210
43 ¹⁄₄ 37¹⁄₄ 120
51 ¹⁄₄ 43¹⁄₄ 011
55 ¹⁄₄ 47¹⁄₄ 201
61 ¹⁄₄ 51¹⁄₄ 111
67 ¹⁄₄ 57¹⁄₄ 021
69 ¹⁄₄ 59¹⁄₄ 002
79 ¹⁄₄ 67¹⁄₄ 102
85 ¹⁄₄ 71¹⁄₄ 012
89 ¹⁄₂ 75¹⁄₂ 202
95 ¹⁄₂ 711¹⁄₂ 112
103 ¹⁄₄ 87¹⁄₄ 003
113 ¹⁄₂ 95¹⁄₂ 103
119 ¹⁄₂ 911¹⁄₂ 013
Height Of Number Of FTF10
Chimney Only Chimney Lengths
Inches Feet/Inches 12" 18" 36"
260 ¹⁄₂ 21 8 ¹⁄₂ 207
266 ¹⁄₂ 22 2 ¹⁄₂ 117
274 ¹⁄₄ 22 10 ¹⁄₄ 008
284 ¹⁄₂ 23 8 ¹⁄₂ 108
290 ¹⁄₂ 24 2 ¹⁄₂ 018
294 ³⁄₄ 24 6 ³⁄₄ 208
300 ³⁄₄ 25 0 ³⁄₄ 118
308 ¹⁄₂ 25 8 ¹⁄₂ 009
318 ³⁄₄ 26 8 ³⁄₄ 109
324 ³⁄₄ 27 0 ³⁄₄ 019
328 ³⁄₄ 27 4 ³⁄₄ 209
334 ³⁄₄ 27 10 ³⁄₄ 119
342 ³⁄₄ 28 6 ³⁄₄ 0010
352 ³⁄₄ 29 4 ³⁄₄ 1010
358 ³⁄₄ 29 10 ³⁄₄ 0110
363 30 3 2 0 10
369 30 9 1 1 10
376 ³⁄₄ 31 4 ³⁄₄ 0011
387 32 3 1 0 11
393 32 9 0 1 11
FTF10 VERTICAL ELEVATION CHART
Height Of Number Of FTF10
Chimney Only Chimney Lengths
Inches Feet/Inches 12" 18" 36"
Height Of Number Of FTF10
Chimney Only Chimney Lengths
Inches Feet/Inches 12" 18" 36"
123 ³⁄₄ 10 3 ³⁄₄ 203
129 ³⁄₄ 10 9 ³⁄₄ 113
137 ¹⁄₂ 11 5 ¹⁄₂ 004
147 ³⁄₄ 12 3 ³⁄₄ 104
153 ³⁄₄ 12 9 ³⁄₄ 014
158 13 2 2 0 4
164 13 8 1 1 4
171 ³⁄₄ 14 3 ³⁄₄ 005
182 15 2 1 0 5
188 15 8 0 1 5
192 16 0 2 0 5
198 16 6 1 1 5
206 17 2 0 0 6
215 ³⁄₄ 17 11 ³⁄₄ 106
222 18 6 0 1 6
226 ¹⁄₄ 18 10 ¹⁄₄ 206
232 ¹⁄₄ 19 4 ¹⁄₄ 116
240 20 0 0 0 7
250 ¹⁄₄ 20 10 ¹⁄₄ 107
256 ¹⁄₄ 21 4 ¹⁄₄ 017
FTF10 OFFSET ELEVATION CHART
A B FTF10-ES30 Number of FTF10 A B
Offset Height Offset/Return FTF10-S4 Chimney Sections Offset Height
(Inches) (Inches) Elbow Set Stabilizer 12" 18" 36" (mm) (mm)
415³⁄₄ 1 0 0 0 0 102 400
924¹⁄₂ 1 0 1 0 0 229 622
12 29 ³⁄₄ 1 0 0 1 0 305 756
14 ¹⁄₄ 33 ¹⁄₂ 1 0 2 0 0 362 851
17 ¹⁄₄ 38 ¹⁄₂ 1 0 1 1 0 438 978
20 ¹⁄₄ 43 ³⁄₄ 1 0 0 2 0 514 1111
21 45 ¹⁄₄ 1 0 0 0 1 533 1149
22 ¹⁄₄ 47 ¹⁄₂ 1 0 2 1 0 565 1207
25 ¹⁄₄ 52 ¹⁄₂ 1 0 1 2 0 641 1334
26 ¹⁄₄ 54 ¹⁄₄ 1 0 1 0 1 667 1378
28 ¹⁄₄ 57 ³⁄₄ 1 0 0 3 0 718 1467
29 ¹⁄₄ 59 ¹⁄₄ 1 0 0 1 1 743 1505
31 ¹⁄₄ 63 1 0 2 0 1 794 1600
32 ¹⁄₂ 65 1 0 4 1 0 826 1651
34 ¹⁄₄ 68 ¹⁄₄ 1 0 1 1 1 870 1734
36 ¹⁄₄ 71 ³⁄₄ 1 0 3 0 1 921 1822
37 ¹⁄₄ 73 ¹⁄₄ 1 0 0 2 1 946 1861
38 ¹⁄₄ 75 1 0 0 0 2 972 1905
39 ¹⁄₄ 77 1 0 2 1 1 997 1956
41 ¹⁄₂ 80 ¹⁄₂ 1 0 1 4 0 1054 2045
43 ¹⁄₄ 83 ³⁄₄ 1 0 1 0 2 1099 2127
44 ¹⁄₂ 85 ³⁄₄ 1 0 3 1 1 1130 2178
45 ¹⁄₄ 87 ¹⁄₂ 1 0 0 3 1 1149 2223
46 ¹⁄₄ 89 1 0 0 1 2 1175 2261
48 ¹⁄₄ 91 ¹⁄₂ 1 0 2 0 2 1226 2324
49 ¹⁄₂ 94 ¹⁄₂ 1 0 1 5 0 1257 2400
51 ¹⁄₄ 97 ³⁄₄ 1 0 1 1 2 1302 2483
54 ¹⁄₄ 103 1 0 0 2 2 1378 2616
55 ¹⁄₄ 104 ¹⁄₂ 1 0 0 0 3 1403 2654
56 ¹⁄₂ 106 ¹⁄₂ 1 0 2 1 2 1435 2705
59 ¹⁄₂ 111 ³⁄₄ 1 0 1 2 2 1511 2838
62 ¹⁄₂ 116 ³⁄₄ 1 1 1 0 3 1588 2965
65 ³⁄₄ 122 1 1 0 1 3 1664 3099
67 ³⁄₄ 125 ¹⁄₂ 1 1 2 0 3 1721 3188
69 ³⁄₄ 128 ¹⁄₂ 1 1 1 3 2 1772 3264
70 ³⁄₄ 130 ³⁄₄ 1 1 1 1 3 1797 3321
73 ³⁄₄ 136 1 1 0 2 3 1873 3454
75 ³⁄₄ 139 ¹⁄₂ 1 1 2 1 3 1924 3543
79 ³⁄₄ 146 ¹⁄₄ 1 1 1 0 4 2026 3715
81 148 ¹⁄₄ 1 1 3 1 3 2057 3766
82 ³⁄₄ 151 ¹⁄₂ 1 1 0 1 4 2102 3848
87 ³⁄₄ 160 ¹⁄₄ 1 1 1 1 4 2229 4070
A B FTF10-ES30 Number of FTF10 A B
Offset Height Offset/Return FTF10-S4 Chimney Sections Offset Height
(Inches) (Inches) Elbow Set Stabilizer 12" 18" 36" (mm) (mm)

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
14
Return
Elbow
Figure 41
Note: The return elbow assembly performs
thesame function as a stabilizer. Consider this
when determining the need for a stabilizer.
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.
CHIMNEY 30°OFFSET THROUGH FLOOR
OR CEILING
Itmay benecessarytoassemblethe chimneyat
30°when passing through the floor or ceiling
area. Use the F10FS30-2 firestop spacer as
shown in Figures 42 and 43 . Support the
chimney at floor or ceiling penetration with a
FTF10 stabilizer if distance of chimney below
ceiling is 10' or more. Maintain 2" minimum air
space to combustibles from chimney sections.
INSTALLING OFFSETS
First, review the Offset Elevation Chart and
Figure 40 for reference.
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.
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.
Step2.Proceed byusingtheStraightUpInstal-
lation Instructions for cutting and framing ceil-
ing and roof openings.
Note:See Framing and Dimension Chart forthe
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
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.
Return Elbow Assembly
Return elbows install the same way as round
terminations and stabilizers:
Step 1. Hold return elbow over top of last
chimney section.
Step 2. Center inner slip section into inner flue
pipe-slip down.
Step3.Centerouter-lockingsectionoverouter
chimney pipe. Push down until locking joint
has firmly engaged.
Step 4. Pull up slightly on return elbow to
ensure locking joint has firmly engaged.
Step 5. Secure support straps to framing
members by nailing under tension in sheer
( Figure 41 ).
F10FS30-2
Firestop Spacer
FTF10-S4
Stabilizer
2" Min.
Air Space
30°Firestop
And Attic Above
10'
Max.
Attic Space
2" Min.
Air Space
F10FS30-2
Firestop Spacer
FTF10-S4
Stabilizer
30°Firestop
And Room Above
10'
Max.
Room Above
2" Min.
Air Space
2" Min.
Air Space
Figure 43
Figure 42
OPTIONAL EQUIPMENT
CONSIDERATIONS
Combustion Air Kits
Usecombustionairkit,ModelFOAK-4orModel
FOAK-4LD,with the Colonial Series fireplaces.
Refer to installation instructions packed with
the air kit for specific installation information.
The outside air kit must be installed before the
fireplace is framed and enclosed in the fin-
ished walls.
Outside air drawn into the fireplace supplies air
to the fire for combustion. Only one combus-
tion air duct on the left side of the fireplace is
necessary if installed ( Figure 44 ).
Figure 44
If additional length of duct is necessary, pur-
chase locally available U.L. Class 0 or Class 1
metallic duct. The duct may extend up to 50'
(15.24 m) in any direction.
Note: When installing the air duct vertically,
DO NOT terminate the duct closer than 3'
(914mm) below the chimney top.
There is a one-hand operated shut-off valve
located in the left side of the fireplace opening
behind the screen. To open, rotate handle up-
wards. The handle should lock open at 45°.
The combustion air damper should be fully
open when the fireplace is in use and fully
closed when the fireplace is not in operation to
prevent outside air from entering your home.
CAUTION: NEVER LOCATE INLET WHERE IT
CAN BE BLOCKED BY SHRUBS, SNOW
DRIFTS, ETC. NEVER LOCATE INLET IN GA-
RAGE OR ANY AREA WHERE THERE IS AN-
OTHER FUEL-BURNING APPLIANCE OR
PRODUCTSEMITTINGCOMBUSTIBLEGASES
SUCH AS PAINT, GASOLINE, ETC. IN COLD
CLIMATES IT IS RECOMMENDED THE COM-
BUSTION AIR DUCT BE INSULATED.
Provision for
Outside Air

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 15
Outside combustion air ducting may be run
upwards or vertically through framing and ceil-
ing joists, with the hood installed through an
outside wall and 3' (914 mm) below the termi-
nation. Ducting may also be run downward
through floor joists and under the home to a
ventilated crawlspace not considered part of
the living area of the home.
Note: Do not terminate combustion air kit in
attic space under any circumstances.
FTF10-TMS Termination Shroud
An optional termination shroud is available to
partially conceal the FTF10-CTDTM when in-
stalledon a chase. Model FTF10-TMS is adjust-
able for chases measuring a minimum of 27" x
27" (686 mm x 686 mm) up to a maximum of
40 ¹⁄₂" x 40 ¹⁄₂" (1029 mm x 1029 mm). Consult
the FTF10-TMS installation instruction for spe-
cific installation information.
Glass Doors
If glass doors are to be installed on these
fireplaces,refertospecificinstallationinstruc-
tionspacked withthe glassdoors.Use onlythe
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.
CAUTION: CERTAIN GLASS DOORS OVER-
LAPTHEBLACK METALFACING OFTHE FIRE-
PLACE. IF THE FIREPLACE HAS BEEN FACED
WITH NONCOMBUSTIBLE MATERIALS,
THERE MIGHT NOT BE SUFFICIENT CLEAR-
ANCE TO INSTALL THE GLASS DOORS OF
YOUR CHOICE. ENSURE ADEQUATE CLEAR-
ANCE IS MAINTAINED AT ALL TIMES SO AS
NOT TO INTERFERE WITH THE INSTALLA-
TION AND OPERATION OF GLASS DOORS.
GAS LINE CONNECTION
The Colonial Series fireplaces have been ap-
proved to accept a ¹⁄₂" (13 mm) gas line for an
approvedgasappliance. Always have the appli-
ance installed by a qualified, licensed plumber
in accordance with all local building codes. The
gas line may enter either side of the fireplace.
CAUTION:PLUMBINGCONNECTIONSSHOULD
ONLY BE PERFORMED BY A QUALIFIED, LI-
CENSEDPLUMBER.MAINGASSUPPLYMUST
BE OFF WHEN PLUMBING GAS LINE TO FIRE-
PLACE OR PERFORMING SERVICE.
Ifyou’reinstallingagasline,connectitbeforethe
fireplace is framed and enclosed in the finished
wall. The gas knockout is determined by a 1 ¹⁄₈"
(29mm)roundindentationlocatedatthebottom
and slightly off center in the side refractories.
THE KNOCKOUT IS ALWAYS REMOVED FROM
INSIDETHE FIREPLACE. DONOTREMOVE THE
KNOCKOUT UNLESS YOU ARE INSTALLING A
GASLINE.Ifremovalisattemptedfromtheouter
wrapper, side-refractory damage may occur.
With a medium-sized hammer, lightly tap the
surface of the indentation. The refractory mate-
rialisverythininthis area and is easily removed.
Once a small hole has been made, continue
tapping until you have reached sufficient diam-
eter for the gas line to fit through. The entire
knockout does not have to be removed. Remove
insulation in the gas line channel.
Install a ¹⁄₂" (13 mm) gas supply line through
fireplace wall for connection to a decorative gas
appliance inside the firebox. Outside, the gas
supply 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.
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.
IMPORTANT: RE-PACK INSULATION MATE-
RIAL IN SQUARE HOLE AROUND GAS LINE;
INTERIOR AND EXTERIOR, TO SEAL.
This provision is intended only for connection
to a decorative gas appliance incorporating an
automatic shut-off device and complying with
the standard for Decorative Gas Appliances for
installation in vented fireplaces, ANSI Z21.60.
Install in accordance with the National Fuel Gas
Code, ANSI Z223.1. This complies with the
revised U.L. 127 standard.
CAUTION: WHEN USING THE DECORATIVE
GAS APPLIANCE, THE FIREPLACE DAMPER
MUST BE SET IN THE FULLY OPEN POSITION.
Vent Free Appliances
These units have been tested and approved to
ANSI/IAS/AGAZ21.11.2 for use with unvented
gas appliances and complies with the stan-
dard for Factory-Built fireplaces, UL 127.
The unit has been tested for use with any
unventedgaslogsetshavinga maximumrating
of 40,000 BTU. The minimum mantle configu-
rations are outlined in
Figures 45 and 46 .
These fireplaces have been marked with a
maximum rating of 40,000 BTU to assure that
homeowners do not exceed the allowable lim-
its for all allowed installations of mantles.
NEVER INSTALL AN UNVENTED GAS LOG
SET WITH A BTU GREATER THAN 40,000.
COLD CLIMATE INSULATION
If you live in a cold climate, it is especially
importanttosealallcracks around the fireplace
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. 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 condensation. Do
not place insulation materials against chimney
sections.
Note:A2"(51mm) airspacemustbepreserved
for all combustible materials extending for any
continuous length adjacent to the chimney.
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
FIREPLACE FINISHES
Mantels and Trim
In Canada, the minimum height for a combus-
tible mantel is 24" (610 mm) above the fire-
place opening. Figure 45 shows typical Cana-
dian installation. In installations other than
Canada, combustible mantels and trim may be
installed 12" (305 mm) above the fireplace
openingas perNFPA211; Section7-2.3.3. and
Figure 46 . If a mantel is of a noncombustible
material, it is exempt from these requirements
as long as it does not interfere with the instal-
lation or operation of glass doors.
Combustible
Mantel
Spacer
Noncombustible
Wall Covering
Finished
Wall
Canadian Installation
Fireplace
Opening
Facing
Flush
24" Min.
(610mm)
8" Max.
(203mm)
Figure 45

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
16
Fireplace
Opening
Typical Installation
6 ⁹⁄₁₆"
(167mm)
12"
(305mm)
Min.
Combustible
Mantel
and Trim Spacer
Noncombustible
Wall Covering
Finished
Wall
12"
(305mm)
Max.
1 ¹⁄₂" (38mm)
Figure 46
Hearth Extensions and Wall Shields
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 exten-
sion must extend beyond the front at
least 20" (508 mm) and both sides at least
12" (305 mm) ( Figure 47 ). Use a hearth
extension constructed of a durable noncom-
bustible material having an equal or better
(lower k value) insulating value of k = .84
BTU IN/FT2 HR °F or a thermal resistance
that equals or exceeds r = 1.19 HR °F FT2/
BTU IN. With these values, determine the
minimum thickness/material required using
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.
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.
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 =
.54 BTU IN/FT2HR °F. At no time may a
perpendicular side wall be located closer than
9" from the fireplace opening.
If fireplace is installed diagonally across a 90°
corner; no wall shields are required.
Figure 47
A
B
D
CC
Hearth Extension Dimensions
A20" (508 mm)
B36" (914 mm)
C12" (305 mm)
D60" (1524 mm)
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.
Example: If Micore 160 is to be used for the hearth extension fireplace,
how thick must this material be?
kM= k value per inch of
alternate material
rM= r value per inch of alternate material
TM= minimum thickness required for alternate material
TS = standard thickness of the alternate material
kL= k value per inch of listed material
rL= r value per inch of listed material
TL= minimum thickness of listed material
Note: An asterix “*” indicates, it is a value taken from Table 1 .
Using the k formula:
Minimum k-value (per Inch) of Specified min.
thickness of = alternate material (kM) x thickness
alternate k-value (per inch) of listed
material (TM) of listed material (kM) material (TL)
TM(inches) = kMxT
L
*.84
TM(inches) = *.35 x 1"
*.84
.416 (inches) = .416 x 1"
Answer - The minimum required thickness of the Micore 160 is .417”,
therefore round up to nearest standard thickness available which is 1/2”.
Using the r formula:
Minimum r-value (per Inch) Specified min.
thickness of = of listed material x thickness
alternate r-value (per inch) of listed
material of alternate material material
TM(inches) = rLxT
L
rM
TM(inches) = *1.19 x 1"
*2.86
.416 (inches)= .416 x 1"

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 17
Answer - The minimum required thickness of the Micore 160 is .417”,
therefore round up to nearest standard thickness available which is 1/2”.
** 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).
Note:Alsosee NFI(National Fireplace Institute)Certification Manualsshowing
other acceptable calculation methods and acceptable alternate materials
which can be used.
Listed Material
k (per inch) r (per inch) Listed Min.Thickness
Listed Material .84
K
L
1.19
r
L
1"
T
L
** Approved Alternate Materials for Floor/Hearth Protection
AlternativeMaterials Thermal Values MinimumThickness
(rounded to nearest 1/8 inch)
k (per inch)
K
M
r (per inch)
r
M
Min. Thickness
T
M
Kaowool M Board .47 2.13 .56" (1/2")
Micore 160™
U.S. Gypsum
.35 2.86 .42" (3/8")
Micore 300™
U.S. Gypsum
.46 2.17 .55" (1/2")
Durock™ Cement Board
U.S. Gypsum
1.92 .52 2.29" (2-1/4")
Hardibacker™ 1.95 .513 2.32" (2-3/8")
Hardibacker 500™ 2.30 .435 2.74" (2-3/4")
Cultered Stone Hearth-
stone™ 2.82 .355 3.36" (3-3/8")
Wonderboard 3.23 .31 3.85" (3-7/8")
Super Firetemp M
Johns-Manville
.61 1.64 .73" (3/4")
Super Firetemp L
Johns-Manville
.54 1.85 .64" (5/8")
Face brick 9.00 .111 10.71" (10-3/4")
Common brick 5.00 .20 5.95" (6")
Cement mortar 5.00 .20 5.95" (6")
Ceramic tile 12.5 .08 14.88" (14-7/8")
Marble 11 .09 13.10" (13-1/8")
Table 1
Wall Shield
Required if
less than
18" (457mm)
40"
(1016mm)
40"
(1016mm)
C
C
B
A
Figure 48
Calculating Minimum Thickness if Multiple
Materials are Used
At times it is important to know what
combination of materials are acceptable for
use as floor protection. The “R values” are
used to determine acceptable combinations of
materialsbecause“Rvalues”areadditivewhere
r and k values are not.
“R value” = 1/k = “r” x thickness of material
used
Example: Given that the required “R value”
for a suitable floor protector used must be
equal to or greater than:
“R” = rLx TL= 1.19 x 1” = 1.19.”
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 noncombustible
materials can be used to accomplish this?
If common brick is used so that the 3 1/2”
dimension is the height, “R” for the common
brick becomes:
brick
“R”M= rMx TS= 0.20 x 3 1/2" = .70
Using 1/2” of mortar to set the brick, “R” for
the mortar is calculated as follows:
mortar
“R”M= rMx TS= 0.20 x 1/2" = .10
Next, a 3/4" marble slab set in 1/2" mortar cov-
ers the brick, “R” for the marble and mortar
becomes:
marble
“R”M= rMx TS= 0.05 x 3/4" = .038
mortar
“R”M= rMx TS= 0.20 x 1/2" = .10

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
18
Locking Band 63L60 FLB
Figure 50
FINISH TO YOUR TASTE
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.
Combustible materials may project beyond the
sides of the fireplace opening as long as they
are kept within the shaded areas illustrated in
Figure 50 .
Offset/ Return
Package (30°) 63L23 FTF10-ES30
INSTALLATION COMPONENTS
The following items are available for use in the
installation of this appliance. Separate installa-
tioninstructionsarepackaged withallcombus-
tion air kits and chimney terminations.
If you encounter any problems or have ques-
tions concerning the installation or application
of this system, please contact your distributor.
For the name of your nearest distributor call:
LENNOX HEARTH PRODUCTS
1110 West Taft Avenue
Orange, California 92865
4 ³⁄₄"
(121mm)
3 ¹⁄₄"
(83mm)
18" (457mm)
Min. Distance to
Unprotected Side Wall
12" (305mm)
Min. Distance to
Protected Side Wall
Fireplace
¹⁄₂"
(13mm)
Combustible
Materials Allowed
in Shaded Areas
15°
Stabilizer 63L26 FTF10-S4
Model Part Number Weight
COL-3629 19M22 450 lbs.
COL-3629H 30M31 450 lbs.
Figure 49
7" Max.
(178mm) Max. Thickness of Hearth
Extension when Fireplace
is on the Floor
The sum of all “R values” is: .70 + .10 +. 038
+ .10 = .938
This would NOT be an acceptable combination
of material for the hearth extension since the
totalcalculated“R value” of the materials used
is under the required “R value” of 1.19. An
additional layer of insulating materials must
be used.
Note: Also see NFI Certification Manuals for
expanded explanation on calculating “R val-
ues” when multiple materials are used.
WARNING: THE CRACK BETWEEN THE
FIREPLACE AND THE HEARTH EXTEN-
SION MUST BE SEALED WITH A NON-
COMBUSTIBLE MATERIAL.
WARNING: WHEN INSTALLING HEARTH
EXTENSION IN FRONT, THE FIREPLACE
MUST BE RAISED IF HEIGHT OF HEARTH
EXTENSIONEXCEEDS7"(178MM)ABOVE
THE BOTTOM OF THE FIREPLACE ( SEE
FIGURE 49 ).
Secure the hearth extension to the floor to
prevent possible shifting.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 19
63L16 FTF10-12
63L17 FTF10-18
63L18 FTF10-36
62L94 FTF10-18C
Chimney Section 62L95 FTF10-36C
Storm Collar 63L59 FSC
63L40 F10F6
Flashing 63L41 F10F12
Firestop Spacer (Flat) 63L36 F10FS-2
Chase Termination
(Square) 63L52 FTF10-CT2RS
INSTALLATION COMPONENTS
Firestop Spacer (30°) 63L37 F10FS30-2
Round Termination 63L55 FTF10-CTDTM
Termination Shroud 63L56 FTF10-TMS
Attic Shield Assembly
Firestop Spacer FTF10-FSAS
Chimney Air Kit
(Canada Only)
Combustion Air Kit 81L87 FOAK-4
(Less Duct) 81L88 FOAK-4LD
Combination
Offset/Return Elbow 63L34 FTF10-OR15

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
20
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.
Printed in U.S.A. © 2001 by LENNOX HEARTH PRODUCTS
P/N 850,005M REV. F 01/2007 1110 West Taft Avenue
Orange, CA 92865