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.
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. The 38" models of these fireplaces must be
installed with Security Chimneys FTF8 (8" inside
diameter) Chimney System. The 43" models with
either Security Chimneys FTF8 or FTF10 (10"
inside diameter) Chimney System. 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.
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, charcoal lighter fluid, or similar
liquids to start or “freshen up” a fire in this
fireplace. Keep any flammable liquids a 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 an that 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
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
The BCF Series are wood-burning fireplaces featuring a self-contained heat-circulating system.
A standard bar grate is also included to properly
position the fire. Outside combustion air kits,
decorative glass doors, forced air kits and the fan
adapter kit are available as optional equipment.
TYPICAL INSTALLATION
Chimney And
Termination
The BRF Series are conventional radiant-heat
fireplaces with a standard bar grate, optional
outside combustion air kits and optional decorative glass doors.
Note: Illustrations shown reflect “typical” installations 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.
The BRF and BCF Series Fireplaces have been
tested and listed by Underwriters Laboratories, Inc. (File No. MH8988-1/91) to the U.L.
127 standard for U.S. installations. 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.
The BCF and BRF systems consist of six basic
“sub-systems”:
1. The Fireplace
2. The Chimney and Termination
3. The Optional Glass Doors
4. The Optional Forced Air Kits (BCF Series
only)
5. The Optional Combustion Air Kits
6. The Optional Collar Duct 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
requires a minimum 2" air space to combustibles (
See **Note
be installed 12" above the opening of the fireplace as per NFPA 211, Section 7-2.3.3.
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.
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, 17 and 18 ).
). A combustible mantle may
Forced Air Kit
(BCF Models Only)
Outside Combustion
Air Kit (Optional)
Figure 1
Model BCF
(Shown)
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
CHIMNEY SYSTEM
These fireplaces are designed and code listed
for use with Security Chimneys FTF8 or FTF10
chimney System only. Always use Security
Chimneys FTF8 or FTF10 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.
**Note: 1" clearance when installing FTF8 on
38" models or FTF10 on 43" models.
3
Page 4
Insulate Joists
Wall
Covering
Black Portion Of Frame
Not To Be Covered With
Combustible Materials
Safe
Zone
45°
12”
15” For 38” Model
18” For 43” Model
Door
Opening
1”
Same As Ceiling
Draft Stops
Chimney Height
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
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.
Firestop
CTDT
Termination
Note: NonCombustible
Chase
Flashing
Must Be
Used To
Cover
Chase
Opening
Optional
Insulation
In Outside
Walls Of
Chase
8'
Level
Solid
Continuous
Surface
Outside
Insulation
(Thermal Barrier)
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.
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.
4
Opening Width38"43"43"
Chimney TypeFTF8FTF8FTF10
Vertical12' 0"16' 8"15' 0"
Installation
One Offset12' 0"16' 8"15' 0"
Two Offsets25' 0"25' 0"25' 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. Firm pressure is required to
lock the damper closed. When pulled forward
and down, the damper is open.
Damper
Closed
Lintel
Figure 3
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Damper
Open
Figure 3
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".
If there is a continuous perpendicular side wall
closer than 15" from the nearest side of any 38"
fireplace opening or 18" from any 43" model, it
must be protected with a 40" x 40" x ¹⁄₂" wall shield
constructed of millboard or a durable non-combustible material with equal or greater insulating
value than k = 84BTU/HR-FT
16). A continuous perpendicular side wall cannot
).
be closer than 8" from the fireplace opening
2
under any circumstances, even if protected.
Figure 5
-°F/IN (see page
Page 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 nor-
mal 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. Field wire main power supply to BCF models
for fan kit and install CF-ADK adapter kit. (Electrical connections should only be performed by
an experienced, licensed/certified tradesman.)
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/certified tradesman.)
6. Complete the installation, finish wall material, surround and hearth extension to your
individual taste.
7. 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.
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.
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
CIRCULATING MODELS. 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
Figures 6, 7
continual coverage of the floor.
Note: Safety strips are not required when fireplace rests on a noncombustible surface.
To Install
Step 1. Slide the fireplace into prepared fram-
ing or position fireplace in its final position and
frame later.
Step 2. Insert the metal safety strips, packaged
with the fireplace, beneath the fireplace as illustrated (
Figures 6 and 7
overlap 1" for continual coverage of the floor.
). The safety strips should
Note: Safety strips are not required when fireplace rests on a non-combustible surface.
Combustible
Wall
1/2" Space
Metal Safety Strip
Maintain
1/2" Air Space
At Back
And Sides
Hearth
Extension
Floor
Figure 6
Combustible
Wall
1/2" Space
Metal Safety StripFloor
Platform
Maintain
1/2" Air Space
At Back
And Sides
Hearth
Extension
Figure 7
Note: Install the hearth extension only as illus-
trated.
The safety strips should extend from front and
sides of the fireplace 2". 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
by Superior.
Step 3. Refer to fireplace drawings and specifications on pages 6 and 7 for framing dimensions and details. Framing header may be positioned directly on the fireplace top spacers.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
5
Page 6
FIREPLACE SPECIFICATIONS
2 1/4"
1 5/16"1 5/16"
38 = 12 1/2"
43 = 15"
4 1/4"
6 1/2"
1 ¹⁄₂"
Metal Safety Strips
Figure 8
Blocking
Metal Safety Strips
Figure 9
IMPORTANT: UNDER NO CIRCUMSTANCES
CAN THE FIREPLACE TOP SPACERS 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 DIRECT 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 (
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.
Roof Framing Dimensions
FTF8 at 1"FTF8 at 2"
PitchCD*CD*
0/1214 ¹⁄₂"14 ¹⁄₂"16 ¹⁄₂"16 ¹⁄₂"
6/1214 ¹⁄₂"17"16 ¹⁄₂"19"
12/1214 ¹⁄₂"21 ¹⁄₂"16 ¹⁄₂"23 ¹⁄₂"
TF10 at 1"
PitchCD*
0/1217"17"
6/1217"19"
12/1217"24"
*Perpendicular to Roof Ridge
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
7
Page 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 (
Nailling
Flange
Figure 18
).
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.
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
Framing
Stud
8d Nail
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
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.
CAUTION: ALLOW MINIMUM 2" CHIMNEY AIR
SPACE TO COMBUSTIBLE FRAMING MEMBERS THROUGHOUT VERTICAL OR OFFSET
CHIMNEY INSTALLATION (
SEE **NOTE
A minimum 2" air space must be reserved for
all combustible materials extending for any
continuous length surrounding the chimney
(
See **Note
).
**Note: 1" clearance when installing FTF8 on
38" models or FTF10 on 43" models.
Reference
Figures 16 and 17
and charts Framing Dimensions for Ceiling and Roof, which
specify minimum ceiling and roof dimensions.
refer to
).
Figure 19
Note: If Desired the optional collar duct kit,
Model FTF8-CDK or FTF10-CDK, should be
installed after the chimney has been attached to
the flue collar.
Step 3. Position appropriate firestop spacer
at ceiling and nail temporarily with two (2)
8d nails. Use flat firestop spacer, Model
F8FS-2, or F8FS30-2, if chimney penetrates
ceiling vertically (
See *Note
). If chimney
penetrates ceiling at 30° angle (offset chimney), use 30° firestop spacer, Model FS30,
F8FS30 or F10FS30 (
See *Note
). 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: Use Models F8FS-2 and F8FS30-2 to
maintain 2" clearance when installing FTF8
chimney on 43" fireplaces.
Firestop Spacer
Figure 20
Attic Above
Firestop Spacer
Figure 21
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.
Security Chimneys FTF8 and FTF10 chimney
systems are two piece chimneys, 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
see Figure 22
(
).
8
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Page 9
Figure 22
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 23
).
Locking
Tabs
(Lances)
Figure 23
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 24
).
Always maintain 2" minimum air space to combustible materials and always check each chimney joint (inner and outer) to ensure proper
engagement (
See **Note
). Check vertical alignment of chimney so that it projects from the
roof in true vertical position.
2" Min. Air Space To Combustibles
(
See **Note
)
Figure 24
Security's chimney sections do not need to be
screwed together. Additional reinforcement is
not necessary except in certain offset conditions (refer to page 14,
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 FTF8-S4 stabilizer installed at 30' intervals.
Note: Models FTF8-S4 and FTF10-S4 add 3" net
effective height to the total chimney system.
Install Models FTF8-S4 and FTF10-S4 stabilizers
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 25
).
FTF8-S4 Stabilizer
Figure 25
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 PitchFTF8FTF10
Flat to 6/12F8F6F10F6
6/12 to 12/12F8F12F10F12
**Note: 1" clearance when installing FTF8 on
38" models or FTF10 on 43" models.
Next, slide roof flashing over extended chimney
section that previously has been installed above
the roof opening in Step 4. FTF8 flashings
require flashing spacers. Slide flashing all the
way down until the flashing base rests flat on
the roof (
Figure 26
). Again, check the vertical
position of the chimney and the 2" minimum air
space to combustibles (
FTF8 Chimney
Flashing Spacers
FTF8 Flashing
see **Note
).
Do Not Seal
Figure 26
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 27
).
Figure 27
Step 8. The standard Security Chimneys FTF8
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 (
see Figure 28
). Check all joints very carefully to ensure no
water intrusion can take place.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
9
Page 10
Using an FTF8/FTF10-CT2 Chase Termination:
Locking Band
Mastic
Figure 28
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 29
).
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 29 ). Guy wires are not
supplied by the manufacturer.
Roof Ridge
CTD
Termination
Chimney
Figure 30
4. Pull up slightly on CTD to ensure locking joint
has firmly engaged.
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.
Using an FTF8/FTF10-CTDT Chase Termination:
Refer to specific installation instructions included with the FTF8/FTF10-CTDT chase termination for clearance and installation details.
Using an FTF8FTF10-CT1 Chase Termination:
Refer to specific installation instructions included with FTF8/FTF10-CT1 chase terminations for clearance and installation details.
Refer to specific installation instructions included with FTF8/FTF10-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 (
Figure 31
).
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 (
see Figure 32
).
120°
Figure 29
Step 10. Using an FTF8/FTF10-CTD Round
Termination:
1. Hold the FTF8/FTF10-CTD over top of last
chimney section (
Figure 30
).
2. Center inner slip section in inner flue pipeslip down.
3. Center outer locking section over outer flue
pipe. Push down until locking tabs are firmly
engaged.
10
Less Than 10'
Min
Figure 31
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
2' Min.
3'
10'
3'
Min
Page 11
CTD
18"
18"
CTDT
CTDT
24"
24"
Figure 32
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.
CHIMNEY COMPONENT CALCULATIONS
The minimum installed height of the BRF-3875
and BCF-3885 Series Fireplace Systems is 12'.
The minimum installed height of the BRF-4375
and BCF-4385 Series Fireplace Systems is 15'.
The maximum height for all systems is 80'.
To determine the number of chimney sections
and chimney components required, follow
these 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 components required, except chimney sections. This
would include firestop spacers, stabilizers, roof
flashing, etc.
3. The effective heights of the components are:
The Fireplace=38"
SS Starter Section=19 ¹⁄₄"
FTF8/10-12=10 ¹⁄₄"
FTF8/10-18=16 ¹⁄₄"
FTF8/10-36=34 ¹⁄₄"
FTF8-48=46 ¹⁄₄"
FTF8/10-CTD Termination=4"
FTF8/10-CT1 Termination=12" to 18"
FTF8/10-CT2 Termination=15" to 23"
FTF8/10-CTDT Termination =12" to 18"
FTF8/10-S4 Stabilizer *=3"
* Required for every 30' of vertical chimney
and/or 10' of offset chimney.
4. Determine amount of chimney height required by subtracting total combined height of
all pre-selected components (fireplace and
chimney components from total desired height.)
Reference Vertical Elevation Chart and determine the number of chimney sections (quantity
and length) required.
SPECIAL OFFSET INSTRUCTIONS
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 F8FS30-2 firestop spacer as shown
Figures 33 and 34
in
floor or ceiling penetration with a FTF8 stabilizer if distance of chimney below ceiling is 10'
or more. Maintain 2" minimum air space to
combustibles from chimney sections.
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.
When offsetting directly off the 43" systems,
always use a FTF10-30 offset elbow. A starter
section, Model BC8-SS or FTF8-SS, must then
be used as a transition to the BC8 or FTF8
chimney system.
F8FS30-2
Firestop Spacer
2" Min.
Air Space
Figure 33
F8FS30-2
Firestop Spacer
2" Min.
Air Space
Figure 34
. Support the chimney at
Attic Space
Air Space
FTF8-S4 Stabilizer
10'
Max.
Room Above
10'
Max.
30° Firestop
And Attic Above
2" Min.
Air Space
FTF8-S4 Stabilizer
30° Firestop
And Room Above
2" Min.
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 (
Figure 35
). The stabilizer support straps must
see
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'.
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
).
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
see
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
FTF8/10-30 offset elbow in place of a FTF8/10E30 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
lizers as shown in
* 48" chimney sections are not available with the TF10 system.
B
1
Figure 35
A
Return
Elbow
20'
Max.
Stabilizer
10' Max.
Offset
Elbow
A
2
C
2
A
1
C
1
2
C
2
A
1
B
2
B
2
B
1
14
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Figure 36
B
C
1
1
Page 15
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
Joints
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.
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.
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.
Return
Elbow
Figure 40
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.
OPTIONAL EQUIPMENT
CONSIDERATIONS
Underside Of Chimney
Figure 38
A
-E30 Return Elbow
Chimney Section(s)
-30 Offset Elbow*
43" Fireplace With FTF10 Chimney System
38" Fireplace With FTF8 Chimney System
*Part of Offset/Return Package,
Models FTF8-ES30, FTF10-ES30
B
38"
Figure 39
INSTALLING OFFSETS
First, review the appropriate Offset Elevation
Chart and
Figure 39
for reference.
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 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.
Step 5. Secure support straps to framing
members by nailing under tension in sheer
(
Figure 40
Note: The return elbow assembly performs the
same function as a stabilizer. Consider this
when determining the need for a stabilizer.
).
Forced Air Kits – BCF Series Only
If you are installing a forced air kit, Model
FAK-1500, on BCF models; see the installation instructions provided with the kit for
electrical wiring requirements. Use a fan
adapter kit, Model CF-ADK, to allow the fireplace to be connected to the main power
supply. The fireplace must be connected to
main power supply at time of installation if a
forced air kit is to be installed later. The
electrical connections must be made before
the fireplace is framed and enclosed in the
finished walls.
CAUTION: ELECTRICAL CONNECTIONS
SHOULD ONLY BE PERFORMED BY A QUALIFIED, LICENSED ELECTRICIAN. MAIN POWER
MUST BE OFF WHEN CONNECTING THE CFADK ADAPTER TO MAIN ELECTRICAL POWER
SUPPLY OR PERFORMING SERVICE.
Variable Speed Wall Switch
Refer to the installation instructions provided
with the variable speed wall switch, Model
VSWS, for installation details.
Combustion Air Kits
Use combustion air kit, Model AK-4 or AK4-LD,
with the BCF and BRF Series fireplaces. Refer to
installation instructions packed with the air kits
for specific installation information. The outside air kit must be installed before the fireplace
is framed and enclosed in the finished walls.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
15
Page 16
Outside air drawn into the fireplace supplies air
to the fire for combustion. Only one combustion air duct on the left side of the fireplace is
necessary if installed (
Provision
For Outside
Air
23"
4 1/2"
Figure 41
).
Figure 41
If additional length of duct is necessary, purchase locally available Type 0 or 1 metallic duct.
The duct may extend up to 50' in any direction.
Note: When installing the air duct vertically, DO
NOT terminate the duct closer than 3' 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, pull out all the way.
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 A GARAGE OR
ANY AREA WHERE THERE IS ANOTHER FUELBURNING APPLIANCE OR PRODUCT EMITTING COMBUSTIBLE GASES SUCH A PAINT,
GASOLINE, ETC. IN COLD CLIMATES IT IS
RECOMMENDED THAT THE COMBUSTION AIR
DUCT BE INSULATED.
Outside combustion air ducting may be run
upwards or vertically through framing and ceiling joists, with the hood installed through an
outside wall and 3' below the termination. 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.
Gas Line Connection
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.
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 fireplaces have been tested and approved to ANSI/IAS/AGA Z21.11.2 for use with
unvented gas appliances and comply with the
standard for Factory-Built fireplaces, UL 127,
when installed with unvented gas log sets.
Special instructions with regards to mantle
installations must be taken into consideration
when installing such appliances.
These fireplaces have been tested for use
with any unvented log set having a maximum
rating of 26,000 BTU (38 Models) and 32,000
BTU (43 Models). The minimum mantle configuration for these log sets are outlined in
Figure 42
Log sets with 40,000 BTU may be installed
provided that no combustible mantle projections are placed lower than 18 inches from the
fireplace opening.
These fireplaces have been marked with a
maximum rating of 26,000 BTU (38 Models)
and 32,000 BTU (43 Models) to assure that
homeowners do not exceed the allowable limits for all allowed installations of mantles. That
limit may be increased to 40,000 BTU, provided that the mantle installed complies with
the 18-inch limitation and a copy of these
instructions are available.
.
NEVER INSTALL AN UNVENTED GAS LOG SET
WITH A BTU RATING GREATER THAN 26,000
BTU (38 MODELS) AND 32,000 BTU (43 MODELS) IF THE COMBUSTIBLE MANTLE PROJECTIONS ARE LOWER THAN 18 INCHES
ABOVE THE FIREPLACE OPENING.
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.
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.
16
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Page 17
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.
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
(See **Note).
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.
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
(
See **Note
may be installed 12" above the fireplace opening as per NFPA 211, Section 7-3.3.3. and
Figure 42.
material, it is exempt from these requirements
as long as it does not interfere with the installation or operation of glass doors or block the
inlets and outlets on the BCF Series fireplaces.
**Note: 1" clearance when installing FTF8 on
38" models or FTF10 on 43" models.
). Combustible mantels and trim
If a mantel is of a non-combustible
Finished
Wall
1 1/2"
Spacer
Non-Combustible
Wall Covering
Fireplace
Opening
Combustible
Mantel
and Trim
12"
Max.
12"
Min.
6 1/2"
Typical Installation
Figure 42
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 extension must extend 8" beyond
both sides of the fireplace opening and 16"
beyond the front (
hearth extension constructed of a durable
noncombustible material having an equal or
greater insulating value of k = .84BTU/In Hr
Ft2 °F or a thermal resistance that equals or
exceeds r = 1.19 In Ft2 Hr °F /BTU. With
these values, determine the minimum thickness/material required using the formula
and the Table on 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 fireplace
and half under the hearth extension (refer to
Figures 6 and 7
A wall shield is required where a continuous
perpendicular side wall is within 12" of the
fireplace opening, (
W x 30" H wall shield constructed of millboard
or a durable, noncombustible material having
an equal or greater insulating value than K =
.54BTU/IN FT
perpendicular side wall be closer than 7".
see Figure 43
). Use a
).
see Figure 44
2
HR °F. At no time may a
). Use a 24"
C
B
D
C
Figure 43
Wall Shield Required
40"
40"
C
If Less Than 15"
For 38" Units And
18" For 43" Units.
In No Case Closer
Than 8" From Opening.
B
C
A
Figure 44
Hearth Extension Dimensions
Opening38"43"
A16"16"
B30 ¹⁄₄"35"
C8"8"
D46 ¹⁄₄"51"
If a continuous perpendicular side wall is closer
than 15" (18" on 43" models) to the fireplace
opening, a wall shield is required. Use a 40" x
40" x ¹⁄₂" wall shield constructed of millboard or
a durable non-combustible material with equal
or greater insulating value than:
K = .84BTU-IN./SQ.FT.-HR.-°F
In no case shall a continuous perpendicular side
wall be closer to the fireplace opening than 8".
If fireplace is installed diagonally across a 90°
corner no wall shields are required.
A
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
17
Page 18
Methods of Determining Hearth Extension
and Wall Shield Equivalents
To determine the thickness required for any
material when either the k or r values are
known:
= Thickness of material in inches
T
M
k
= K value of desired material
M
rM= R value of desired material
TL= Minimum listed thickness
Example: Micore CV230 is to be used for the
hearth extension fireplace. How thick must this
material be?
Using the k formula:
Desiredk value of desiredMin. thickness
Required = material (per inch) x of Listed
Thickness k value of listedMaterial
material (per inch)
TM (inches) = kMx T
0.84
TM (inches) = 0.43* x ⁵⁄₈"
0.84
Answer using k = 0.51 x ⁵⁄₈" = 0.32 = ³⁄₈"³⁄₈" thickness Micore will be required.
Using the r formula:
Desiredr value of listedMin. thickness
Required = material (per inch)x of Listed
Thickness r value of desiredMaterial
a suitable hearth extension used must be equal
to or greater than:
“R” = r x T
= 1.19 x ⁵⁄₈" = 0.74.
L
If it is desired to elevate a marble hearth extension 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:
WARNING: THE CRACK BETWEEN THE
FIREPLACE AND THE HEARTH EXTENSION MUST BE SEALED WITH A NONCOMBUSTIBLE MATERIAL.
WARNING: WHEN INSTALLING THE
HEARTH EXTENSION, BE CAREFUL NOT
TO BLOCK THE HEAT-CIRCULATING AIR
INLET GRILL ON BCF MODELS.
WARNING: WHEN INSTALLING BRF
MODELS, THE FIREPLACE MUST BE
RAISED IF HEIGHT OF HEARTH EXTENSION EXCEED 7" ABOVE THE BOTTOM OF
THE FIREPLACE (
Max. Thickness Of Hearth Extension
When BRF Models Are On The Floor
Figure 45
7"
FIGURE 45
).
WARNING: WHEN INSTALLING BCF
MODELS, THE FIREPLACE MUST BE
RAISED IF HEIGHT OF HEARTH EXTENSION EXCEEDS 1 ¹⁄₂" ABOVE THE BOTTOM OF FIREPLACE (
FIGURE 46
).
TM (inches) = 1.19 x T
L
r
M
TM (inches) = 1.19x ⁵⁄₈"
2.33*
Answer using r = 0.51 x ⁵⁄₈" = 0.32 = ³⁄₈"³⁄₈" thickness Micore will be required.
At times it is important to know what combination of materials are acceptable for use as
hearth extensions. 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 used
k
*value taken from chart
18
= r x TM = 0.20 x 3 ¹⁄₂" = 0.70
“R”
M
Using ¹⁄₂" of mortar to set the brick, “R” for the
mortar is calculated as follows:
“R”M = r x TM = 0.20 x ¹⁄₂" = 0.10
A ³⁄₄" marble slab set in ¹⁄₂" mortar covers the
brick, “R” for the marble and mortar becomes:
“R”M = r x TM = 0.09 x ³⁄₄" = .068
“R”M = r x TM = 0.20 x ¹⁄₂" = .10
The sum of all “R values” is:
.70 + .10 +. 068 + .10 = .968
This would not be an acceptable combination of
material for the hearth extension since the total
calculated “R value” of the materials used does
not exceed the required “R value” of 1.19.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
5 1/2"
1 1/2"
Max Thickness of Hearth Extension
When BCF Models Are On Floor
Figure 46
Secure the hearth extension to the floor to
prevent possible shifting.
Page 19
FINISH TO YOUR TASTE
INSTALLATION COMPONENTS
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.
Combustible materials may project beyond
the sides of the fireplace opening as long as
they are kept within the shaded areas illustrated in
Figures 47 and 48
Combustible
Materials
Allowed In
Shaded Area
4 3/4"
.
Fireplace
1"
The following items are available for use in the
installation of this appliance.
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.