LENNOX HEARTH PRODUCTS
INSTALLATION
INSTRUCTIONS
ESTATE SERIES
48" Wood Burning Fireplaces
P/N 850,006M REV. C 04/2004
MODELS
EST-48 EST-48-H
This installation manual will enable you to obtain a safe, efficient and
dependable installation of your fireplace system. Please read and understand 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.
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
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.
PLEASE RETAIN THIS MANUAL FOR FUTURE REFERENCE.
WH Report No. 629-915173
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
1
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
EST-48 Fireplace Specifications...... page 6
Framing Specifications.................... page 7
Installing the Chimney System ........ page 8
30° Offset through Floor/Ceiling ...... 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 11
Vertical Elevation Chart ................... page 12
Offset Elevation Chart ..................... page 13
Installing Offsets.............................. page 13
Combustion Air Kits ........................ page 14
Gas Line Connection........................ page 14
Optional Equipment Considerations. page 15
Vent Free Appliances ....................... page 15
Glass Doors ..................................... 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 17
Installation Components .................. page 17
IMPORTANT: PLEASE READ AND
UNDERSTAND THESE RULES TO
FOLLOW FOR SAFETY.
1. Before starting your fireplace installation,
read these installation instructions carefully to
be sure you understand them completely and in
entirety. Failure to follow them could cause a
fireplace malfunction resulting in serious injury
and/or property damage.
2. Always check your local building codes. The
installation must comply with all local, regional,
state and national codes and regulations.
3. These fireplaces must be installed with
Security Chimneys FTF13 (13" inside diameter) Chimney System only. These systems
are intended for use in any application where
a traditional masonry type fireplace would
apply. The chimney system must always vent
to the outside of the building.
4. To ensure a safe fireplace system and to
prevent the build-up of soot and creosote,
inspect and clean the fireplace and chimney
prior to use and periodically during the heating
season.
5. Use solid fuel only. DO NOT use artificial
wax based logs, chemical chimney cleaners or
flame colorants in your fireplace.
6. DO NOT use charcoal or coal under any
circumstances.
7. NEVER use gasoline, gasoline-type lantern
fuel, kerosene, charcoal lighter fluid, or similar
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
prevent any possible electrical shock or burns.
11. This fireplace is not intended to heat an
entire home or be used as a primary heat
source. It is designed to ensure homeowner
comfort by providing 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 optional combustion air kit may not provide all the
air required to support combustion.
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 manufacturer for use 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 unusual environmental factors or conditions beyond our control.
15. Never, under any circumstances, install a
fireplace, chimney component or any accessories, that has visible or suspected physical
damage as a result of handling or transportation. These items should be inspected by your
distributor or qualified factory representative
to ensure safe condition. When in doubt, consult 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
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
PRECAUTIONS
Note: These fireplace systems are not difficult
to install. However, in the interest of safety, it
is recommended that the installer be a qualified or certified “tradesman” familiar with commonly accepted fireplace installation and safety
techniques as well as prevailing local codes.
The most important areas of concern dealing
with the installation of factory-built fireplaces
are clearances to combustible materials, proper
assembly of component parts, height of the
chimney system, the proper use of accessories supplied by the manufacturer and the
techniques employed in using finishing materials applied to the wall surrounding the fireplace, hearth extensions and wall 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.
INTRODUCTION
General Information
These fireplaces are conventional radiant heat
fireplaces with standard bar grates, optional
outside combustion air kits and optional decorative glass doors.
Note: Illustrations shown reflect “typical” instal-
lations with nominal dimensions and are for
design and framing reference only. Actual installations may vary due to individual design preferences. However, always maintain minimum clearances to combustible materials and do not violate any specific installation requirements.
These fireplaces have been tested and listed by
Warnock Hersey (Report No. 629-915173) to
U.L. standard 127. These units are intended
for installation in residential homes and other
buildings of conventional construction including commercial, not in mobile homes.
These fireplace systems are designed for installation 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
BOCA Basic/National Codes, the Standard Mechanical Code and the Uniform Building Codes.
WARNING: FAILURE TO USE MANUFACTURE PROVIDED PARTS, VARIATIONS IN
TECHNIQUES AND CONSTRUCTION MATERIALS OR PRACTICES OTHER THAN
THOSE DESCRIBED IN THIS MANUAL
MAY CREATE A FIRE HAZARD AND VOID
THE LIMITED WARRANTY.
When complete these fireplace systems consists of four basic “sub-systems”:
1. The Fireplace
2. The Chimney and Termination
3. The Optional Glass Doors
4. The Optional Combustion Air Kits
CLEARANCES AND HEIGHT
REQUIREMENTS
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
and fireplace outer wrapper require a minimum 2" air space to combustibles. A combustible mantle may be installed 12" above the
opening of the fireplace as per NFPA 211,
Section 7-2.3.3.
The minimum installed height of the completed
fireplace system is 15' 6". The maximum height
is 80' 0".
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.
TYPICAL INSTALLATION
Chimney and
Termination
For questions, please call your distributor or
the 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
for use with Security Chimneys FTF13 chimney
System only. Always use Security Chimneys
FTF13 chimney components with these fireplaces. Do not modify or alter these components as this may cause a potential serious
hazard and void the Warranty.
*Construction Materials:
• framing materials • paneling
• particle board • flooring
• millboard • dry wall
• plywood • etc.
Figure 1
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
3
Insulate Joists
Same As Ceiling
Draft Stops
19"
(483mm)
19"
(483mm)
Note: Do not insulate the chase cavity with
blown or fill type insulation materials.
Note: Local codes may not require firestopping
at the ceiling levels for outside chase installations. However, it is recommended for safety
and the reduction of heat loss.
Chimney Height
Damper
Closed
Damper
Open
Combustion
Air Actuator
F10FS-2
Firestop
FTF13-CT2
Termination
Note: NonCombustible
Chase
Flashing
must be
Used to
Cover
Chase
Opening
Optional
Insulation
in Outside
Walls of
Chase
8'
Insulation
(Thermal Barrier)
(2.4m)
Level
Solid
Continuous
Surface
Outside
Base
Figure 2
WARNING: IF INSULATION IS USED, THE
FIREPLACE MUST NOT BE PLACED DIRECTLY AGAINST IT. INSULATION OR
VAPOR BARRIERS, IF USED, MUST FIRST
BE COVERED WITH GYPSUM BOARD,
PLYWOOD, PARTICLE BOARD OR OTHER
MATERIAL TO ASSURE INSULATION AND
VAPOR BARRIERS REMAIN IN PLACE.
WARNING: DO NOT PACK OR FILL REQUIRED AIR SPACES WITH INSULATION
OR OTHER MATERIAL. NO MATERIAL IS
ALLOWED IN THESE AREAS.
The total height of your completed fireplace
system from the surface the fireplace rests on
to the chimney top must not exceed 80' and
must also meet minimum height requirements.
Refer to the minimum system height chart.
Minimum System Height
Security's FTF13 Pipe
Vertical Installation 15' 6"
One Offset 18' 0"
Two Offsets 20' 0"
Chase Enclosure
A chase is a vertical box-like structure constructed to surround the fireplace and chimney.
Refer to
Figure 2
for a typical chase configuration. 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 climate 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. Check also for any concealed damage.
Check the operation of the damper. The damper
is controlled through the use of a control lever
located within the firebox opening at the top
center just behind the firebox lintel (
The control lever snaps into place at the extreme range of motion, up and back in the
closed position. When pulled forward and
down, the damper is open.
Figure 3
Figure 3
LOCATION OF FIREPLACE
Carefully select the proper location for heat
circulation, aesthetics, chimney obstructions
and clearance to side wall(s). With proper preplanning, a slight adjustment of a few inches
can save considerable time and expense later
during construction and assembly.
Hearth
Hearth
Optional
Outside Chase
Figure 4
Carefully consider the position of the fireplace
opening with respect to the location of adjacent or nearby stairwells, bath or kitchen exhaust fans and/or return air registers for forced
air furnaces/air conditioners that could cause
a smoking fireplace condition if the house is
tightly insulated.
When locating the fireplace, consideration must
be given to combustibles and final finishing.
See
Figure 5
and confine the final location of
combustible finish materials to the "Safe Zone".
).
DO NOT permanently place furniture or other
items such as decorative pillows within 60" of
the fireplace front face.
4
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
12”
45°
Black Portion Of Frame
Not To Be Covered With
Combustible Materials
1”
Door
Opening
Safe
12”
Zone
Wall
Covering
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 materials such as brick, stone, etc., to be installed. Shipping weights for the fireplace may
be found on page 18.
Combustible
Wall
1"
Hearth
Extension
Figure 5
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 the chimney system.
3. Install optional outside combustion air kit.
4. Plumb gas line if a decorative gas appliance
will be used. (Gas connections should only be
performed by an experienced, licensed/certified tradesman.)
5. Complete the installation, finish wall material, surround and hearth extension to your
individual taste.
6. Assemble and attach optional glass door
assembly.
Study the three dimensional illustration (
ure 1
) to get a general idea of each element of
Fig-
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, vinyl or other soft floor coverings. It
may, however, be placed on flat wood, plywood, 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.
2. Measure the square footage of the floor
space to be occupied by the system, surrounds
and hearth extensions.
3. Note the floor construction, i.e. 2 x 6’s, 2 x 8’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 additional support.
CAUTION: DO NOT BLOCK THE HEAT-CIRCULATING AIR INLET AND OUTLET PORTS ON
FACE SIDES. DOING SO MAY RESULT 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.
INSTALLING THE FIREPLACE
Step 1. Slide the fireplace into prepared fram-
ing or position fireplace in its final position and
frame later.
The fireplace may not be recessed into a combustible floor. Maintain the floor to hearth
clearance established by the fireplace lower
front face.
Step 2. Insert the provided metal safety strips,
beneath the fireplace as illustrated (
and 8
). The safety strips should overlap ¹⁄₂" for
continual coverage of the floor.
Note: Safety strips are not required when fireplace rests on a noncombustible surface.
Note: Install the hearth extension only as illustrated.
Figures 6, 7
FloorMetal Safety Strip
Figure 6
Zero Clearance
to Rear and
Platform
Side Spacers
Hearth
Extension
FloorMetal Safety Strip
1"
Combustible
Wall
Figure 7
The safety strips should extend from front of
the fireplace at least 2" and should extend to be
at least flush with the sides. In the event a
wooden support is used to elevate the fireplace
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 (
Figures 8 and 9
). The
safety strips should be tacked down to prevent
possible movement.
Note: The “Z” type safety strip is not supplied.
Step 3. Refer to fireplace drawings and specifi-
cations on pages 6 and 7 for framing dimensions
and details. Frame appliance enclosure as illustrated in
Figures 11 through 14
on page 7.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
5
FIREPLACE SPECIFICATIONS
8 ⁹⁄₁₆"
15"
2"
Metal Safety Strips
with 1" Overlap
Figure 8
Platform
2"
Special “Z” Metal Safety
Strips with 1" Overlap
Figure 9
IMPORTANT: UNDER NO CIRCUMSTANCES
CAN THE FIREPLACE TOP SPACERS (
) BE REMOVED OR MODIFIED, NOR MAY
10
FIGURE
YOU NOTCH THE HEADER TO FIT AROUND OR
BE INSTALLED LOWER THAN THE SPACERS.
THE HEADER MAY BE IN DIRECT CONTACT
WITH THE TOP SPACERS BUT MAY NOT BE
SUPPORTED BY THEM.
Note: The framed depth, 29
³⁄₄
" (755 mm)
from a framed wall, must always be measured
from a finished surface. If a wall covering such
as drywall is to be attached to the rear wall,
then the framed depth must be measured from
the drywall surface. It is important that this
dimension be exact.
If the appliance is to be elevated above floor
level, a solid continuous platform must be
constructed.
The header may rest on the top metal spacers,
but must not be notched to fit around them.
Consult all local codes.
Gas
Line
Access
10"
8 ⁹⁄₁₆"
14 ¹₄"
30 ³⁄₈"
Left Side
13 ¹₄"
13 ³⁄₄"
12 ¹⁄₂"
28"
1"
53 ¹⁄₄"
48"
59 ³⁄₈"
Front
44 ¹⁄₂"
15"
53 ¹⁄₄"
1"
11 ⁵⁄₈"
11 ¹⁄₈"
13 ³⁄₄"
45 ¹⁄₈"
Combustion
Air Access
30 ³⁄₈"
Right Side
6"
14 ¹₄"
Gas Line
Access
29 ³⁄₈"
10"
⁵⁄₈"
Top View
Figure 10
6
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
FRAMING SPECIFICATIONS
Framing Dimensions
Model EST-48
A 59 ¹⁄₂" 1511 mm
B 53 ³⁄₈" 1346 mm
C 44 ⁄₂" 1130 mm
Back Wall of
Chase/Enclosure
Including Finising
Materials
if any
K
FOAK Combustion
Air Kit - Optional
D
F
A
Figure 11
Back Wall of Chase/Enclosure
Including Finising Materials if any
A
Inside Chase
B
FOAK
Combustion
Air Kit
G
Rough
Framing Face
(Unfinished
Shown)
D 22 ¹⁄₄" 565 mm
E 104" 2641 mm
F 52" 1321 mm
G 29 ³⁄₄" 755 mm
J 31 ³⁄₄" 806 mm
K 73 ¹⁄₂" 1867 mm
Note: All framing dimensions calculated for 1/2"
dry wall at the fireplace face. If sheathing the
chase or finishing with other thickness materials,
calculations will need to be made. False header
should be constructed of 2 x material only.
Framing Dimensions for Ceiling
Flue Type A B
FTF13 Vertical 19" 19"
(483 mm) (483 mm)
FTF13 19" 29"
Offset 30° (483 mm) (737 mm)
Rough
Framing Face
(Unfinished Shown)
Figure 14
B
Figure 15
A
E
Corner Installation
A
Ceiling Framing
Figure 12
Back Wall of Chase/Enclosure
Including Finising Materials
(Unfinished Shown)
if any
J
Rough
Framing Face
Outside Chase
Figure 13
FOAK
Combustion
Air Kit - Optional
C
Framing Dimensions for Roof
Pitch C D*
0/12 19" 19"
G
(483 mm) (483 mm)
6/12 19" 22"
A
12/12 19" 27"
(483 mm) (559 mm)
D
(483 mm) (686 mm)
* Perpendicular to roof ridge
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Figure 16
C
Roof Framing
7
Anchor Tab
Figure 17
Step 4. The fireplace should be secured to the
side framing members using the nailing flange.
Use 8d nails (
Nailing
Flange
Framing
Stud
Figure 18
).
8d Nail
Figure 18
Note: The nailing flange and the area directly
behind the nailing flange is exempt from the
clearances described on the fireplace clearance
label.
Note: The nailing tabs and the area directly
behind the nailing tabs are exempt from the
clearances described on page 5. Maintain at
least 1/2" clearance from the firebox wrapper to
the framing at the closest point of contact,
directly adjacent to the flange.
INSTALLING THE CHIMNEY SYSTEM
Step 1. Before continuing, check the operation
of the damper, as described on page 4, (
Figure 3
).
Step 2. Using standard construction framing
techniques, construct opening for chimney route
up through the ceiling(s) and roof or through an
outside chase.
Framing must maintain adequate minimum air
space clearance at all times.
refer to
CAUTION: ALLOW MINIMUM 2" CHIMNEY
AIR SPACE TO COMBUSTIBLE FRAMING MEMBERS 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 15 and 16
and charts Framing Dimensions for Ceiling and Roof, which
specify minimum ceiling and roof dimensions.
In new construction, to determine chimney center line, 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 19
). Then plumb from ceiling or
roof level directly above hole which has just
been completed.
Plumb Line
Figure 19
Step 3. Position appropriate firestop spacer at
ceiling and nail temporarily with two (2) 8d nails.
Use flat firestop spacer, Model F10FS-2, if chimney penetrates ceiling vertically. If chimney penetrates ceiling at 30° angle (offset chimney), use
30° firestop spacer, Model F10FS30-2. 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 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 20 and 21 ).
Room Above
Firestop Spacer
Figure 20
Attic Above
Firestop Spacer
Figure 21
CHIMNEY 30° OFFSET THROUGH FLOOR
OR CEILING
It may be necessary to assemble the chimney at
30° when passing through the floor or ceiling
area. Use the F10FS30-2 firestop spacer as
shown in
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.
2" Min.
Air Space
Figure 22
2" Min.
Air Space
Figure 23
Figures 22 and 23
F10FS30-2
Firestop Spacer
F10FS30-2
Firestop Spacer
Attic Space
10'
Max.
Room Above
10'
Max.
. Support the
2" Min.
Air Space
FTF10-S4
Stabilizer
30° Firestop
And Attic Above
2" Min.
Air Space
FTF10-S4
Stabilizer
30° Firestop
And Room Above
8
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Step 4.
Note:
Chimney sections are constructed
with a unique locking tab design, which ensures an immediate, tight assembly between
sections. Plan your chimney requirements carefully before assembly as chimney is difficult to
disassemble after installation. If disassembled,
the tabs might become damaged. Be certain
tabs are properly formed to ensure locking tabs
engage properly.
The Security Chimneys FTF13 chimney system
is a two piece chimney, which snap together
from the fireplace up. Start with the inner flue
section 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
pulling up slightly from the top to ensure proper
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
).
Figure 24
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
).
Locking
Tabs
(Lances)
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
framed opening. Assemble just enough to penetrate the roof flashing openings (
Figure 26
).
Always maintain 2" minimum air space to combustible materials and always check each chimney joint (inner and outer) to ensure proper
engagement. Check vertical alignment of chimney so that it projects from the roof in true
vertical position.
2" Min. Air Space
To Combustibles
Figure 26
Security's chimney sections do not need to be
screwed together. Additional reinforcement is
not necessary except in certain offset conditions (refer to page 12,
Figure 36
).
Step 5. The height of vertical chimney pipe
supported only by the fireplace must not exceed 30'. Chimney heights above 30' must be
supported by a Model FTF13-S4 stabilizer installed at 30' intervals.
Note: The Model FTF13-S4 adds 3" net effective
height to the total chimney system.
Install the Model FTF13-S4 stabilizer by fitting
inner section down into respective section of
proceeding flue pipe and locking outer stabilizer section into place over the outer chimney
pipe. Position for proper clearance through
framed opening 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 techniques as described in Step 4 (
Figure 27
).
Note: Do not apply excessive pressure to any
subsequent chimney sections following the
stabilizer when installing. Ensure each subsequent 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, slide roof flashing over extended chimney
section that previously has been installed above
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.
FTF13 Chimney
Flashing Spacers
FTF10 Flashing
Do Not Seal
Figure 28
Note: Do not caulk or seal the ventilating openings.
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 caulking (
Figure 29
).
Figure 25
Note: F10 flashings and firestops are compat-
ible with FTF13 chimney.
Figure 27
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Stabilizer
Figure 29
9
Step 8. The standard Security Chimneys F10
roof flashing assemblies include a storm collar.
Slide the storm collar over outer chimney, rest
on flashing 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 completely against water penetration (
Figure 30
Check all joints very carefully to ensure no
water intrusion can take place.
Step 10. Using a FTF13-CTD Round Termination:
1. Hold the FTF13-CTD over top of last chimney
section (
Figure 32
).
2. Center inner slip section in inner flue pipeslip down.
).
Note: It is recommended that all exterior exposed metal fireplace components; such as
terminations, flashings, storm collars and/or
flue be painted with a premium quality, high
temperature, rust preventative paint designed
for metal. This is especially important when
installations are made in abnormally adverse or
corrosive environments; such as near lakes,
oceans or in areas with consistently high humidity conditions. Consult the paint manufacturers instructions for proper preparation and
application.
Locking Band
Mastic
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 the chimney 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 damage the chimney section (
refer to Figure 30
).
CTD
Termination
Chimney
Figure 32
3. Center outer locking section over outer flue
pipe. Push down until locking tabs are firmly
engaged.
4. Pull up slightly on CTD to ensure locking joint
has firmly engaged.
Using a FTF13-CT1 Chase Termination:
Refer to specific installation instructions included with FTF13-CT1 chase terminations for
clearance and installation details.
Using a FTF13-CT2 Chase Termination:
Refer to specific installation instructions included with FTF13-CT2 chase terminations for
clearance and installation details.
TEN FOOT RULE SUMMARY
The minimum chimney height above the roof
and/or to adjacent walls and buildings is specified by all major building codes.
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.
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.
The 2' in 10' rule is necessary in the interest of
safety but does not ensure smoke-free operation. Trees, buildings, adjoining roof lines, adverse wind conditions, etc., may require a taller
chimney should the fireplace not draft properly
(
see Figure 33
).
Note: If chimney extends more than 8' above
roof surface, guy wires are also recommended.
Use three (3) guy wires, attach to locking band
assembly, extend and secure to roof in a triangular pattern (Figure 31 ). Guy wires are not
supplied by the manufacturer.
Roof Ridge
120°
Figure 31
10
Less Than 10'
3'
Min
Figure 33
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
2' Min.
10'
3'
Min
MULTIPLE TERMINATIONS
If more than one termination is located in the
same chase or within the same general proximity, we suggest they should be separated in
distance at least 24" horizontally from flue center to flue center and stacked or staggered
vertically at least 18" apart, from the termination of one smoke exit to the termination of
another smoke exit (
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.
18"
18"
24"
24"
Figure 34
FTF13 CHIMNEY COMPONENT
CALCULATIONS
The minimum installed height of the EST-48
fireplaces system is 15' 6", higher with offsets.
The maximum height for the system is 80'.
To determine the number of chimney sections
and chimney components required, follow these
steps:
1. Determine the total vertical height of the
fireplace installation. This distance is measured
from the surface the fireplace rests on to the
point where smoke exits the termination.
3. The effective heights of various components
are:
The Fireplace = 52 ¹⁄₂"
FTF13-12 = 10 1/4"
FTF13-18 = 16 1/4"
FTF13-36 = 34 1/4"
FTF13-CTD termination = 4"
FTF13-CTDT termination= 12" to 18"
FTF13-CT1 termination = 12" to 18"
FTF13-CT2 termination = 15" to 23"
FTF13-S4 stabilizer* = 3"
* Required for every 30' of vertical chimney
and/or 10' of offset chimney.
4. Determine the amount of chimney height
required by subtracting the total combined
height of all pre-selected components (fireplace and chimney components from the total
desired height).
5. Reference the Vertical Elevation Chart and
determine the 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 fireplace flue collar.
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
stabilizer must be used at the midpoint (
35
). 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 chimney used between elbows cannot exceed 20' (
see Figure 36
). Example: If C
= 10' then C2 cannot exceed 10'.
Figure
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 38
). 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 system exceeds 25'.
Return elbow support straps must be securely
attached under tension (in shear) to structural
framing members above. Do not substitute a
FTF13-30 offset elbow in place of a FTF13-E30
return elbow.
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 stabilizers as required. Firestop spacers must be
used as shown in
stabilizers as shown in
B
1
1
Figures 22 and 23
Figure 27
A
1
20'
Max.
Stabilizer
10' Max.
see
and
.
Return
Elbow
2. Determine the number of chimney compo-
nents required, except chimney sections. This
would include firestop spacers, stabilizers, roof
flashing, etc.
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
metal screw located at the underside of the
joint (
see Figure 37
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
).
Figure 35
Offset
Elbow
11
FTF13 VERTICAL ELEVATION CHART
Height Of Number Of FTF13 Height Of
Chimney Only Chimney Lengths Chimney Only
Inches Feet/Inches 12" 18" 36" MM M
11 0 11 1 0 0 279 0.28
17 1 5 0 1 0 432 0.43
21 ¹⁄₄ 19¹⁄₄ 2 0 0 540 0.54
27 ¹⁄₄ 23¹⁄₄ 1 1 0 692 0.69
33 ¹⁄₄ 29¹⁄₄ 0 2 0 845 0.85
35 2 11 0 0 1 889 0.89
37 ¹⁄₄ 31¹⁄₄ 2 1 0 946 0.95
43 ¹⁄₄ 37¹⁄₄ 1 2 0 1099 1.10
51 ¹⁄₄ 43¹⁄₄ 0 1 1 1302 1.30
55 ¹⁄₄ 47¹⁄₄ 2 0 1 1403 1.40
61 ¹⁄₄ 51¹⁄₄ 1 1 1 1556 1.56
67 ¹⁄₄ 57¹⁄₄ 0 2 1 1708 1.71
69 ¹⁄₄ 59¹⁄₄ 0 0 2 1759 1.76
79 ¹⁄₄ 67¹⁄₄ 1 0 2 2013 2.01
85 ¹⁄₄ 71¹⁄₄ 0 1 2 2165 2.17
89 ¹⁄₂ 75¹⁄₂ 2 0 2 2273 2.27
95 ¹⁄₂ 711¹⁄₂ 1 1 2 2426 2.43
103 ¹⁄₄ 87¹⁄₄ 0 0 3 2622 2.62
113 ¹⁄₂ 95¹⁄₂ 1 0 3 2883 2.88
119 ¹⁄₂ 911¹⁄₂ 0 1 3 3035 3.03
123 ³⁄₄ 10 3 ³⁄₄ 2 0 3 3143 3.14
129 ³⁄₄ 10 9 ³⁄₄ 1 1 3 3296 3.30
137 ¹⁄₂ 11 5 ¹⁄₂ 0 0 4 3493 3.49
147 ³⁄₄ 12 3 ³⁄₄ 1 0 4 3753 3.75
153 ³⁄₄ 12 9 ³⁄₄ 0 1 4 3905 4.91
158 13 2 2 0 4 4013 4.01
164 13 8 1 1 4 4166 4.17
171 ³⁄₄ 14 3 ³⁄₄ 0 0 5 4362 4.36
182 15 2 1 0 5 4623 4.62
188 15 8 0 1 5 4775 4.78
192 16 0 2 0 5 4877 4.88
198 16 6 1 1 5 5029 5.03
206 17 2 0 0 6 5232 5.23
215 ³⁄₄ 17 11 ³⁄₄ 1 0 6 5480 5.48
222 18 6 0 1 6 5639 5.64
226 ¹⁄₄ 18 10 ¹⁄₄ 2 0 6 5747 5.75
232 ¹⁄₄ 19 4 ¹⁄₄ 1 1 6 5899 5.90
240 20 0 0 0 7 6096 6.10
250 ¹⁄₄ 20 10 ¹⁄₄ 1 0 7 6356 6.36
256 ¹⁄₄ 21 4 ¹⁄₄ 0 1 7 6509 6.51
260 ¹⁄₂ 21 8 ¹⁄₂ 2 0 7 6617 6.62
266 ¹⁄₂ 22 2 ¹⁄₂ 1 1 7 6769 6.77
274 ¹⁄₄ 22 10 ¹⁄₄ 0 0 8 6966 6.97
284 ¹⁄₂ 23 8 ¹⁄₂ 1 0 8 7226 7.23
290 ¹⁄₂ 24 2 ¹⁄₂ 0 1 8 7379 7.38
294 ³⁄₄ 24 6 ³⁄₄ 2 0 8 7487 7.49
300 ³⁄₄ 25 0 ³⁄₄ 1 1 8 7639 7.64
308 ¹⁄₂ 25 8 ¹⁄₂ 0 0 9 7836 7.84
318 ³⁄₄ 26 8 ³⁄₄ 1 0 9 8096 8.10
324 ³⁄₄ 27 0 ³⁄₄ 0 1 9 8249 8.25
328 ³⁄₄ 27 4 ³⁄₄ 2 0 9 8350 8.35
334 ³⁄₄ 27 10 ³⁄₄ 1 1 9 8503 8.50
342 ³⁄₄ 28 6 ³⁄₄ 0 0 10 8706 8.71
352 ³⁄₄ 29 4 ³⁄₄ 1 0 10 8960 8.96
358 ³⁄₄ 29 10 ³⁄₄ 0 1 10 9112 9.11
363 30 3 2 0 10 9220 9.22
369 30 9 1 1 10 9373 9.37
376 ³⁄₄ 31 4 ³⁄₄ 0 0 11 9569 9.57
387 32 3 1 0 11 9829 9.83
393 32 9 0 1 11 9982 9.98
397 ¹⁄₄ 33 1 ¹⁄₄ 2 0 11 10090 10.09
403 ¹⁄₄ 33 7 ¹⁄₄ 1 1 11 10243 10.24
411 34 3 0 0 12 10439 10.44
421 ¹⁄₄ 35 1 ¹⁄₄ 1 0 12 10700 10.70
427 ¹⁄₄ 35 7 ¹⁄₄ 0 1 12 10852 10.85
431 ¹⁄₂ 35 11 ¹⁄₂ 2 0 12 10960 10.96
437 ¹⁄₂ 36 5 ¹⁄₂ 1 1 12 11113 11.11
445 ¹⁄₄ 37 1 ¹⁄₄ 0 0 13 11309 11.31
455 ¹⁄₂ 37 11 ¹⁄₂ 1 0 13 11570 11.57
Height Of Number Of FTF13 Height Of
Chimney Only Chimney Lengths Chimney Only
Inches Feet/Inches 12" 18" 36" MM M
461 ¹⁄₂ 38 5 ¹⁄₂ 0 1 13 11722 11.72
465 ¹⁄₂ 38 9 ¹⁄₂ 2 0 13 11824 11.82
471 ¹⁄₂ 39 3 ¹⁄₂ 1 1 13 11976 11.98
479 ¹⁄₂ 39 11 ¹⁄₂ 0 0 14 12179 12.18
489 ¹⁄₂ 40 9 ¹⁄₂ 1 0 14 12433 12.43
495 ¹⁄₂ 41 3 ¹⁄₂ 0 1 14 12586 12.59
499 ³⁄₄ 41 7 ³⁄₄ 2 0 14 12694 12.69
505 ³⁄₄ 42 1 ³⁄₄ 1 1 14 12846 12.85
513 ¹⁄₂ 42 9 ¹⁄₂ 0 0 15 13043 13.04
523 ³⁄₄ 43 7 ³⁄₄ 1 0 15 13303 13.30
529 ³⁄₄ 44 1 ³⁄₄ 0 1 15 13456 13.46
534 44 6 2 0 15 13564 13.56
540 45 0 1 1 15 13716 13.71
547 ³⁄₄ 45 7 ³⁄₄ 0 0 16 13913 13.91
558 46 6 1 0 16 14173 14.17
564 47 0 0 1 16 14326 14.33
568 ¹⁄₄ 47 4 ¹⁄₄ 2 0 16 14434 14.43
574 ¹⁄₄ 47 10 ¹⁄₄ 1 1 16 14586 14.59
582 48 6 0 0 17 14783 14.78
592 ¹⁄₄ 49 4 ¹⁄₄ 1 0 17 15043 15.04
598 ¹⁄₄ 49 10 ¹⁄₄ 0 1 17 15196 15.20
602 ¹⁄₄ 50 2 ¹⁄₄ 2 0 17 15297 15.30
608 ¹⁄₄ 50 8 ¹⁄₄ 1 1 17 15450 15.45
616 ¹⁄₄ 51 4 ¹⁄₄ 0 0 18 15653 15.65
626 ¹⁄₄ 52 2 ¹⁄₄ 1 0 18 15907 15.91
632 ¹⁄₄ 52 8 ¹⁄₄ 0 1 18 16059 16.06
636 ¹⁄₂ 53 0 ¹⁄₂ 2 0 18 16167 16.17
642 ¹⁄₂ 53 6 ¹⁄₂ 1 1 18 16320 16.32
650 ¹⁄₄ 54 2 ¹⁄₂ 0 0 19 16516 16.52
660 ¹⁄₂ 55 0 ¹⁄₂ 1 0 19 16777 16.78
666 ¹⁄₂ 55 6 ¹⁄₂ 0 1 19 16929 16.93
670 ³⁄₄ 55 10 ³⁄₄ 2 0 19 17037 17.04
676 ³⁄₄ 56 4 ³⁄₄ 1 1 19 17189 17.19
684 ¹⁄₂ 57 0 ¹⁄₂ 0 0 20 17386 17.39
694 ³⁄₄ 57 10 ³⁄₄ 1 0 20 17647 17.65
700 ³⁄₄ 58 4 ³⁄₄ 0 1 20 17799 17.80
705 58 9 2 0 20 17907 17.91
711 59 3 1 1 20 18059 18.06
718 ³⁄₄ 59 10 ³⁄₄ 0 0 21 18256 18.26
729 60 9 1 0 21 18517 18.52
735 61 3 0 1 21 18669 18.67
739 61 7 2 0 21 18771 18.77
745 62 1 1 1 21 18923 18.92
753 62 9 0 0 22 19126 19.13
763 63 7 1 0 22 19380 19.38
769 64 1 0 1 22 19533 19.53
773 ¹⁄₄ 64 5 ¹⁄₄ 2 0 22 19641 19.64
779 ¹⁄₄ 64 11 ¹⁄₄ 1 1 22 19793 19.79
787 65 7 0 0 23 19990 19.99
797 ¹⁄₄ 66 5 ¹⁄₄ 1 0 23 20250 20.25
803 ¹⁄₄ 66 11 ¹⁄₄ 0 1 23 20403 20.40
807 ¹⁄₂ 67 3 ¹⁄₂ 2 0 23 20511 20.51
813 ¹⁄₂ 67 9 ¹⁄₂ 1 1 23 20663 20.66
821 ¹⁄₄ 68 5 ¹⁄₄ 0 0 24 20860 20.86
831 ¹⁄₂ 69 3 ¹⁄₂ 1 0 24 21120 21.12
837 ¹⁄₂ 69 9 ¹⁄₂ 0 1 24 21273 21.27
841 ³⁄₄ 70 1 ³⁄₄ 2 0 24 21380 21.38
847 ³⁄₄ 70 7 ³⁄₄ 1 1 24 21533 21.53
855 ¹⁄₂ 71 3 ¹⁄₂ 0 0 25 21730 21.73
865 ³⁄₄ 72 1 ³⁄₄ 1 0 25 21990 21.99
871 ³⁄₄ 72 6 ³⁄₄ 0 1 25 22142 22.14
875 ³⁄₄ 72 11 ³⁄₄ 2 0 25 22244 22.24
881 ³⁄₄ 73 5 ³⁄₄ 1 1 25 22396 22.40
889 ³⁄₄ 74 1 ³⁄₄ 0 0 26 22600 22.60
899 ³⁄₄ 74 11 ³⁄₄ 1 0 26 22854 22.85
905 ³⁄₄ 75 5 ³⁄₄ 0 1 26 23006 23.01
910 75 10 2 0 26 23114 23.11
916 76 4 1 1 26 23266 23.27
924 77 0 0 0 27 23470 23.47
12
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
A
Figure 36
FTF13 OFFSET ELEVATION CHART
A
2
C
2
A
1
C
1
2
C
2
A
1
C
1
B
2
B
1
B
2
B
1
Joints
A B FTF13-ES30 Number of FTF13 A B
Offset Height Offset/Return FTF13-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
61 ³⁄₄ 116 1 1 1 0 3 1568 2946
64 ³⁄₄ 121 ¹⁄₄ 1 1 0 1 3 1645 3080
67 124 ³⁄₄ 1 1 2 0 3 1702 3169
69 127 ³⁄₄ 1 1 1 3 2 1753 3245
70 130 1 1 1 1 3 1778 3302
73 135 ¹⁄₄ 1 1 0 2 3 1854 3435
75 138 ³⁄₄ 1 1 2 1 3 1905 3524
79 145 ¹⁄₂ 1 1 1 0 4 2007 3696
80 ¹⁄₄ 147 ¹⁄₂ 1 1 3 1 3 2038 3747
82 150 ³⁄₄ 1 1 0 1 4 2083 3829
87 159 ¹⁄₂ 1 1 1 1 4 2210 4051
Chimney
Section
Figure 37
4'
Screws Required At
Every Joint Past 6'
6'
No Screws Required In
Joints For First 6' of Offset
No. 8 x 1/2" SMS
INSTALLING OFFSETS
First, review the Offset Elevation Chart and see
Figure 39
Step 1. Determine the offset distance where
chimney is to pass through the first ceilingdimension “A.” To find this point on your ceiling, first determine the center point for a vertical chimney following the instructions for vertical installation.
for reference.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
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
show the center point for your offset ceiling cut.
Step 2. Proceed by using the Straight Up Installation Instructions for cutting and framing ceiling and roof openings.
13
Step 3. Center outer-locking section over outer
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.
AIR INLET
EYEBROW
ASSEMBLY
Underside Of Chimney
Figure 38
FTF13-E30 Return Elbow*
Chimney Section (S)
FTF13-30 Offset Elbow*
A
*Part of Offset/Return Package Model FTF13-ES30
B
Figure 39
Note: See Framing and Dimension Chart for
the 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 connection 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.
Step 5. Secure support straps to framing
members by nailing under tension in sheer
Figure 40
(
).
Return
Elbow
Figure 40
Note: The return elbow assembly performs
the same 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.
Combustion Air Kits
The installation of an outside combustion air
kit is highly recommended. It is very important to ensure good fireplace operation in
homes which are tightly weather sealed or
have ventilating appliances installed.
Step 1. Determine the source for outside air,
which can be installed through an outside wall
or into a ventilated crawl space. In either case,
a 4 1/2" diameter hole will be required for
installation of the air inlet assembly.
CAUTION: AVOID INSTALLING THE AIR INLET WHERE THE OPENING COULD BE
BLOCKED BY SNOW, BUSHES OR OTHER
OBSTACLES. THE MAXIMUM HEIGHT FOR
THE OUTSIDE AIR IS 50 FEET ABOVE THE
HEARTH, PROVING THE AIR INLET IS TERMINATED A MINIMUM OF THREE (3) FEET BELOW THE CHIMNEY CAP LEVEL.
Note: Combustion air inlet ducts must not
terminate in attic space.
Step 2. Install the air inlet eyebrow (FOAK-4 or
FOAK-4LD) through the wall opening (
Push a 4 inch diameter NON-COMBUSTIBLE
Class 0 or Class I flexible duct onto the eyebrow.
Figure 41
).
FOAK
Figure 41
Step 3. The air inlet for the outside air kit is
located on the right hand side of the fireplace
(
Figure 42
). Refer to the installation instructions packed with each FOAK-4 air kit for
specific installation information. The outside
air kit, if used, must be installed before the
fireplace is totally framed and enclosed within
the finished walls.
OPEN
CLOSED
Figure 42
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 enclosure around the firebox. Failure to do so may
result in extensive and costly rework.
To operate, locate the hand operated shut-off
lever at the lower right side of the fireplace
opening behind the screen. To open the air
damper, turn upwards. To close, turn down.
Operate the actuator through several cycles.
Ensuring proper operation and freedom of
movement. Return the actuator arm to the
closed position.
14
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
OPTIONAL EQUIPMENT
CONSIDERATIONS
Gas Line Connection
The EST-48 has been listed to accept a ¹⁄₂" gas
line for an approved gas appliance. Always
have the appliance installed in accordance with
all local building codes.
CAUTION: ALL GAS CONNECTIONS SHOULD
ONLY BE PERFORMED BY A QUALIFIED, LICENSED TRADESMAN. THE MAIN GAS SUPPLY MUST BE OFF WHEN PLUMBING THE
GAS LINE TO THE FIREPLACE OR WHEN PERFORMING SERVICE WORK.
Install a ¹⁄₂" 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 connection with a match or open flame.
CAUTION: WHEN USING THE DECORATIVE
GAS APPLIANCE, THE FIREPLACE DAMPER
MUST BE SET IN THE FULLY OPEN POSITION.
CAUTION: PLUMBING CONNECTIONS SHOULD
ONLY BE PERFORMED BY A QUALIFIED, LICENSED PLUMBER. MAIN GAS SUPPLY MUST
BE OFF WHEN PLUMBING GAS LINE TO FIREPLACE OR PERFORMING SERVICE.
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 INSIDE 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 refractory material is very thin in this area and is easily
removed. Once a small hole has been made,
continue tapping until you have reached sufficient diameter for the gas line to fit through. The
entire knockout does not have to be removed.
Remove insulation in the gas line channel.
Surrounding 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 on top of fireplace or against chimney sections.
Note: A 2" air space must be preserved 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 fireplace or chimney system.
FIREPLACE FINISHES
Mantels and Trim
It is sometimes best to frame your fireplace
after it is positioned and the chimney is installed. Frame enclosure for chimney and fireplace with 2 x 4’s (or heavier) lumber.
This provision is intended 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
(1991) or American Gas Association draft requirements for Gas-Fired Log Lighters for Wood
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.
Vent Free Appliances
These units have been tested and approved to
ANSI/IAS/AGA Z21.11.2 for use with unvented
gas appliances and complies with the standard for Factory-Built fireplaces, UL 127.
The unit has been tested for use with any
unvented gas log sets having a maximum
rating of 40,000 BTU. The minimum mantle
configurations are outlined in
These fireplaces have been marked with a
maximum rating of 40,000 BTU to assure that
homeowners do not exceed the allowable limits for all allowed installations of mantles.
NEVER INSTALL AN UNVENTED GAS LOG
SET WITH A BTU GREATER THAN 40,000.
Figure 43
.
IMPORTANT: REPACK INSULATION MATERIAL
IN SQUARE HOLE AROUND GAS LINE, INTERIOR AND EXTERIOR OF FIREPLACE, TO SEAL.
Glass Doors
If glass doors are to be installed on these
fireplaces, refer to specific installation instructions packed with the glass doors. Use only the
doors that are listed for use with these fireplaces. Use of other non-listed glass door on
these fireplaces may constitute a potential fire
hazard and is not recommended.
CAUTION: CERTAIN GLASS DOORS OVERLAP THE BLACK METAL FACING OF THE FIREPLACE. IF THE FIREPLACE HAS BEEN FACED
WITH NONCOMBUSTIBLE MATERIALS,
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.
COLD CLIMATE INSULATION
If you live in a cold climate, it is especially
important to seal all cracks around the fireplace opening with noncombustible material
and wherever cold air could enter the room.
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.
These fireplaces may sit directly on a combustible surface. A 2" air space is required between combustible framing and the chimney.
Combustible mantels and trim may be installed 12" above the fireplace opening as per
NFPA 211, Section 7-2.3.3. and
Figure 43
. If
a mantel is of a noncombustible material, it is
exempt from these requirements as long as it
does not interfere with the installation or operation of glass doors.
Finished
Wall
Combustible
Mantel and Trim
12" Max.
12"
Min.
8 ⁹⁄₁₆"
Typical Installation
1 ¹⁄₂"
Fireplace
Opening
Header
Noncombustible
Wall Covering
Spacer
Figure 43
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
15
Hearth Extensions and Wall Shields
A hearth extension must be installed with all
fireplaces. It is to protect the floor in front of the
fireplace from both radiant heat and sparks. For
Model EST-48, the hearth extension must extend 12" beyond both sides and must extend
20" beyond the front. Use a durable noncombustible material having an equal or greater
insulating value of k = .84 BTU IN/FT
or a thermal resistance that equals or exceed
r = 1.19 HR °F FT2/BTU IN. A minimum 1" thick
noncombustible material is all that is required
over a noncombustible slab floor.
Note: Any noncombustible material whose 1" 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, the metal safety strips (provided) must be
used on the floor extending half under the
fireplace and half under the hearth extension.
Secure the hearth extension to the floor to
prevent possible shifting.
If the fireplace is installed diagonally across a
90° corner, the 24" sidewall clearance can be
reduced to 20" and no wall protection is required.
Side Wall cannot be
Closer than 24" under
any Circumastances
C
B
C
Figure 44
2
HR °F
A
Hearth Extension Dimensions
(For
Figures 44 and 45
)
A 20"
B 48"
C 12"
D 72"
Methods of Determining Hearth Extension
Equivalents
To determine the thickness required for any
desired material when either the k or r values
are known:
TM = thickness of desired material in inches
kM = k value of desired material
rM = r value of desired material
T1 = minimum listed thickness
Example: Micore CV230 is to be used with the
EST-48 fireplace. How thick must this material
be?
Using the k formula:
Desired k value of desired Min. Thickness
Required = material (per inch) x of listed
Thickness k value of listed material
material (per inch)
(inches) = kMx T
T
M
.84
TM (inches) = 0.43* x 1" **
Answer using k = 0.51 x 1 = 0.51 = ¹⁄₂"
Using the r formula:
Desired k value of desired Min. Thickness
Required = material (per inch) x of listed
Thickness k value of listed material
material (per inch)
(inches) = 1.19 x T
T
M
TM (inches) = 1.19 x 1" **
2.33*
.84
r
M
1
1
Alternative Hearth Extension
and Wall Shield Materials
Listed Values Min. Thick
Material k r T
L
Millboard .84 1.19 1"
Alternative Values Min. Thick
Materials k r T
M
Wonderboard 1.92 0.56 2 ³⁄₈"
Common brick 5.00 0.20 6"
Cement mortar 5.00 0.20 6"
Ceramic tile 12.5 0.08 15"
Marble 11.0 0.09 13"
Micore CV230 0.43 2.33 ¹⁄₂"
(U.S. Gypsum)
Ceraform 126 0.27 3.70 ¹⁄₂"
(Johns-Manville)
At times, it is important to know what combinations of materials are acceptable for use as
hearth extension. The “R” values are used to
determine acceptable combinations of materials because “R” values are additive where r and
k values are not.
“R” value = 1 = r x thickness of material
k
Example: Given that the required “R” value for
a suitable hearth extension used with the EST-48
must be equal to or greater than “R” = r x T
1.19 x 1" = 1.19. It is desired to elevate a marble
1
hearth extension to a level of 5” or more off 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, then “R” for the common brick becomes:
“R”M = r x TM = 0.20 x 3 ¹⁄₂" = 0.70
Using ¹⁄₂" of mortar to set the brick, then “R” for
the mortar becomes:
“R” = r x TM = 0.20 x ¹⁄₂" = 0.10
=
16
C
Figure 45
B
D
C
A
* value taken from chart
** minimum thickness per listing
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Answer using r = 0.51 x 1" = 0.51 = ¹⁄₂"
A ³⁄₄" marble slab set on ¹⁄₄" micore covers the
brick, then “R” for the marble and micore
becomes:
“R” = r x TM = 0.09 x ³⁄₄" = 0.068
“R” = r x TM = 2.33 x ¹⁄₄" = 0.5825
The sum of all “R” values is:
.70 + .10 + .068 + .5825 = 1.4505
This would be an acceptable combination of
materials for the hearth extension since the
total calculated “R” value of all material used
exceed the required “R” value of 1.19.
WARNING: THE CRACK BETWEEN THE
FIREPLACE AND THE HEARTH EXTENSION MUST BE SEALED WITH A NONCOMBUSTIBLE MATERIAL.
WARNING: THE FIREPLACE MUST BE
RAISED IF THE HEIGHT OF THE HEARTH
EXTENSION EXCEEDS 8 ¹⁄₂" ABOVE THE
BOTTOM OF THE FIREPLACE (
46
).
FIGURE
Combustible materials may project beyond the
sides of the fireplace opening as long as they
are kept within the shaded areas illustrated in
Figure 47
Combustible
Materials Allowed
in Shaded Areas
4 ³⁄₄"
.
Fireplace
3 ¹⁄₄"
¹⁄₂"
15°
12" Min.
Distance to
Protected Side Wall
18" Min.
Distance to
Unprotected Side Wall
Figure 47
INSTALLATION COMPONENTS
The following items are available for use in the
installation of this appliance.
Firestop Spacer (30°) 63L37 F10FS30-2
Offset/ Return
Package (30°) 63L24 FTF13-ES30
8 ¹⁄₂" Max.
Maximum Thickness of Hearth Extension
when EST-48 is on the Floor
Figure 46
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 noncombustible caulking material only to seal the
black metal facing to the surround material on
the finished wall.
Chase Termination
(Square) 63L54 FTF13-CT2
Outside Combustion Air Kits
(with duct) 81L87 FOAK
(without duct) 81L88 FOAK-LD
Stabilizer 63L27 FTF13-S4
Combination
Offset/Return Elbow 63L35 FTF13-OR15
Locking Band 63L60 FLB
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
17
INSTALLATION COMPONENTS
Round Termination 63L44 FTF13-CTD
Firestop Spacer (Flat) 63L36 F10FS-2
63L19 FTF13-12
63L20 FTF13-18
Chimney Section 63L21 FTF13-36
Flashing 63L41 F10F12
63L40 F10F6
Chase Termination
(Square) 63L50 FTF13-CT1
Storm Collar 63L59 FSC
18
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
19
Lennox Hearth Products 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 850,006M REV. C 04/2004
20
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
1110 West Taft Avenue
Orange, CA 92865
Loading...