BIS Ultra EPA User manual

E P A
E P AE P A
E P A
Installation and Operating
Instructions
This installation manual will help you
obtain a safe, efficient, dependable
installation for your fireplace and chimney
system. Please read and understand these
installation instructions before beginning
your installation.
CAUTION Do not attempt to modify or
alter the construction of the fireplace or its
components. Any modification or
alteration of construction may void the
warranty, listings and approvals of this
system. In that case, Security Chimneys
International Ltd will not be responsible
for damages. Install the fireplace only as
described in these instructions.
SAVE THESE INSTRUCTIONS
FOR FUTURE REFERENCE
WARNING The fireplace cannot be
operated without a door or firescreen
.
Consult your dealer to select the correct
door or firescreen model.
2125 Monterey St., Laval, Quebec, Canada, H7L 3T6
Printed in Canada Rev. 13 December 2009 PIBISULTRAEPA
•Hot! Do not touch! The glass
and surfaces of this appliance
will be hot during operation and
will retain heat for a while after
shutting off the appliance.
Severe burn may result.
•Carefully supervise children in
the same room as appliance.
•If small children are present in the home, it
is recommended that this appliance be used
with a fire screen kit.
Listed to standards
ULC-S610, UL-127
Report # 192-5192
TM

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TABLE OF CONTENTS
1. SAFETY RULES .................................................................................................................... 1
2. CERTIFICATION LABEL .................................................................................................... 2
3. THE FIREPLACE ................................................................................................................... 3
3.1 INTRODUCTION ........................................................................................................... 3
3.1.1 Parts Required
3.1.2 Additional Equipment (optional)
3.2 OPERATING THE BIS ULTRA™ ................................................................................... 4
3.2.1 Fuel
3.2.2 First Fires
3.2.3 Combustion Control
3.2.4 Accelerated Combustion
3.2.5 Medium Combustion
3.2.6 Slow Combustion
3.2.7 Starting and Maintaining a Fire
3.2.8 Refuelling For Best Performance
3.2.9 Smoking – Causes and Troubleshooting
3.2.10 Important Notes
3.3 MAINTAINING YOUR BIS ULTRA ................................................................................ 8
3.3.1 Creosote
3.3.2 Chimney Maintenance
3.3.3 Dealing with a Chimney Fire
3.3.4 Doorframe Care
3.3.5 Ashes
3.3.6 Refractory Brick Replacement
3.3.7 Door Installation
3.3.8 Door Adjustment
3.3.9 Glass Care – Replacement
3.3.10 Glass Care – Cleaning
3.3.11 Gasket Replacement
3.3.12 Top Baffle Removal Prior to Cleaning the Chimney
3.4 FIREPLACE INSTALLATION ...................................................................................... 12
3.4.1 Locating The BIS ULTRA
3.4.2 Hearth Extension Requirements
3.4.3 Framing, Facing and Mantel
3.5 HOT AIR DUCTING INSTALLATION .......................................................................... 1
3.5.1 Gravity Kit
3.5.2 Central Forced Air Kit (not tested under EPA certification)
3.6 OUTSIDE AIR KIT ....................................................................................................... 20
3.6.1 Outside Air Installation
4. THE CHIMNEY ................................................................................................................... 21
4.1 CHIMNEY INSTALLATION NOTES ............................................................................ 21
4.2 CHIMNEY INSTALLATION INSTRUCTIONS ............................................................. 22
4.3 OFFSET CHIMNEY INSTALLATION ......................................................................... 25
4.4 ANGLED WALL RADIATION SHIELD ........................................................................ 28
4.5 CHIMNEY SUPPORT INSTALLATION ....................................................................... 29
4.6 CHIMNEY CHASE AND MULTIPLE TERMINATIONS .............................................. 30
4.7. CHIMNEY ADAPTOR .................................................................................................. 30
4. INSTALLATION INSTRUCTIONS FOR MASONRY APPLICATION ............................ 31
5. PARTS AND COMPONENTS LIST ................................................................................... 32
6. OPTIONS ............................................................................................................................... 33
7. APPENDIX (Specifications, Clearance To Combustibles, Replacement Parts) ............... 33

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1. SAFETY RULES FOR OPERATING YOUR
FIREPLACE MODEL BIS ULTRA™
Warning: An outside air kit must be installed on the fireplace model BIS ULTRA
Warning: The fireplace must be operated with the doors fully opened or fully closed.
If the doors are left partly opened, smoke may be drawn into the room. If the unit is
operated with the doors fully opened, the optional fire screen must be used.
•Use only Security Chimneys International glass doors specifically designed for the
model BIS ULTRA fireplace.
•When cleaning the fireplace, the ashes should be placed in a metal container with a
tight fitting lid. The closed container of ashes should be placed on a non-combustible
floor or on the ground outside the house, pending final disposal. If the ashes are
disposed of by burial in soil or otherwise locally dispersed, they should be retained in
the closed container until all cinders have thoroughly cooled.
Caution: Never use gasoline, kerosene, charcoal lighter fluid or similar liquids to start or
rekindle a fire in this fireplace. Keep all such liquids well away from the
fireplace at all times.
Caution: Keep combustible materials at least 48 inches away from the front of the
fireplace opening.
Caution: Never leave children unattended when there is a fire burning in the fireplace.
Caution: Burn untreated wood only. Other materials such as wood preservatives, metal
foils, coal, plastic, garbage, sulphur or oil may damage the fireplace.
WARNING: THIS FIREPLACE HAS NOT BEEN TESTED WITH AN UNVENTED
GAS LOG SET. TO REDUCE RISK OF FIRE OR INJURY, DO NOT
INSTALL AN UNVENTED GAS LOG SET INTO THIS FIREPLACE.

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2. CERTIFICATION LABEL

3
3. THE FIREPLACE
3.1 INTRODUCTION
The BIS ULTRA™ fireplace is an energy efficient, heat circulating, close combustion
fireplace. You will receive a lifetime of comfort and enjoyment from your fireplace
provided it is installed, maintained and operated properly.
•Please read these instructions and retain this manual for future reference.
•Before beginning the fireplace installation, consult the local authorities to obtain your
building permit and check your local building codes. Install the fireplace only as
described in these instructions and using only Security Chimneys International
components.
•The BIS ULTRA fireplace is not intended for use with a gas log. Failure to follow
these instructions will void the certification and the warranty of the fireplace and may
result in an unsafe installation.
3.1.1 Parts Required
•Fireplace model BIS ULTRA
•Door set
•6" diameter chimney model Secure Temp
ASHT+
, Secure Temp
S-2100+
, Nova
Temp
HT6000+
, Nova Temp
HT6103+
or AC manufactured by Security Chimneys
International only, including
- Chimney lengths
- Elbows (where necessary)
- Radiation shield, Attic radiation shield
- Roof flashing
- Rain cap
- Supports (if necessary)
•Outside air kit
3.1.2 Additional Equipment (optional)
•5" flexible venting system (central forced air kit – Not EPA approved)
•Gravity venting system
•Panel for clean face option (only with gravity venting system)
•Rigid fire screen
•Fireplace fan kit

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3.2 OPERATING THE BIS ULTRA™
3.2.1 Fuel
The BIS ULTRA fireplace is designed to work best when fuelled with seasoned
cordwood. Hardwoods are preferred to softwoods since the energy content of wood is
relative to its density. Hardwoods will result in a longer burning fire and less frequent
refuelling. A moisture content of 15% to 20% (seasoned) is recommended. Excessively
wet wood will be difficult to burn and will result in lower efficiency, increased creosoting
and deposits on the glass and in the chimney. Excessively dry wood will burn well but
will also have higher emissions and shorter burning time.
Do not burn scrap or garbage, treated wood or wood such as driftwood from the ocean
which has been exposed to salt or other chemicals. Salt or chemicals can corrode the
firebox and chimney. Do not burn large amounts of paper, cardboard, Christmas tree
branches or building construction materials. Intense firing with these materials may
overheat the fireplace, causing damage to the unit, a fire or even possibly igniting a
chimney fire if the chimney is creosoted.
Processed firelogs can be used. Refer to warnings and cautions markings on the
packaging prior to use.
3.2.2 First Fires
Before using the fireplace make sure to remove the plastic wrapping on the doors.
Remove all remaining glue with mild soap. Ensure that the doors are well adjusted before
starting a fire (see page 11.)
The first 5 or 6 fires should be small fires of short duration (about 30 to 60 minutes).
This will help cure the refractory bricks. Ashes that will accumulate in the ashtray will
protect it from intense heat. The first fires may produce slight smoking due to drying of
the paint and steel and any dust accumulated on the fireplace will burn off at this time. It
may set off a smoke alarm located in the same room. For this reason the room should be
well ventilated for the first few fires.
3.2.3 Combustion Control
There is no flue damper in the BIS ULTRA fireplace. As
is common with airtight stoves, the combustion air
damper controls the air entering the firebox. This allows
for a more precise control of the fire. The combustion
air damper knob is located below the left door. It is
opened when moved completely to the left. This control
should be in the closed position when the fireplace is not
in use. This will minimise air leakage up the chimney.
The combustion air control should be opened before
opening the door to minimise the possibility of back
draft coming into the room.
Figure 1

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3.2.4 Accelerated Combustion
The maximum heat output for the
BIS ULTRA™ fireplace is achieved by
burning with the combustion air damper
opened. By this method, the BIS
ULTRA fireplace can produce up to
60,000 BTU of heat per hour.
However, it will be necessary to reload with wood every one or two hours. This is the
least efficient method of burning the BIS ULTRA fireplace.
Use caution when firing with the combustion air control wide open. Only burn cordwood
in this manner. Small dry pieces of softwood and construction scraps will burn very
intensely using this method and may damage the firebox.
3.2.5 Medium Combustion
This is the recommended mode of
operating the BIS ULTRA fireplace and
should be the one normally used since it
will deposit the least amount of
creosote on the glass and in the
chimney. The combustion air damper
must be ¾ closed.
The precise setting will depend on many factors, including chimney length and the
moisture content of the wood. For instance, a long chimney will necessitate closing the
damper more. To obtain the proper combustion, close the damper completely, and then
open it about ½" to ¾". Three medium size pieces of wood should be burning on a bed of
hot coals. The heat output will be approximately 30,000 BTU per hour and the loading
time will be about every 3-4 hours. Softwoods may be burned using this method but the
time will be substantially reduced.
3.2.6 Slow Combustion
When the air combustion damper is
closed, the fireplace is in a slow
combustion phase. Slow combustion
will not stop the fire, but there will be a
noticeable change in the flame pattern.
The flames will be slow and may appear
dirty if the wood is too wet (moisture
content of 20% and more).
Always set the damper so that flames are visible, that way you maintain a good clean
combustion process. This method of burning should be used only after operating the BIS
ULTRA fireplace with the air control opened to produce a hot fire for about an hour.
Slow combustion can be used at night in order to reduce the heat output and prolong the
burn. The loading time will be between 6-10 hours.

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3.2.7 Starting And Maintaining a Fire
A) Place several crumpled up balls of newspaper in the firebox. Place small dry pieces of
kindling on top of the paper, criss-crossing the kindling so that there are air spaces in
between. Keep the fuel far back enough so that air can get underneath.
B) Open the air control fully. Light the newspaper. Leave the door open until the fire is
well established.
C) Once the kindling fire is well established, add increasingly larger pieces of cordwood
until the fire is actively burning. Close the door and maintain an accelerated
combustion air set up in order to achieve operating temperature.
D) It takes about 15 – 30 minutes to reach proper operating temperature.
After that period, you may set the air control at the desired setting.
The unit will burn best with 2-3 pieces of cordwood spaced 1 to 2 inches apart and
allowing air to get under the fuel. Criss-crossing or arranging the fuel so that air can
get underneath, will help the fire get started easily.
3.2. Refuelling For Best Performance
The BIS fireplace will operate best if attention is given to operating the unit with the
damper fully opened after refueling in order to bring the firebox and the chimney system
up to their optimum operating temperature. Combustion efficiency is relative to firebox
temperature. A temperature of 500º C and up in the upper part of the firebox indicates a
maximum efficiency. To obtain this temperature, the fireplace must be operated with the
damper fully opened during 15 to 30 minutes after reloading, depending on the heat and
on the moisture content of the wood. Once you have reached the desired temperature, the
damper can be closed gradually. You know you have reached the desired temperature
when, closing the damper, you can see a flame at the top of the firebox. The benefit of
this technique will be cleaner glass, less creosoting, greater efficiency and the most
pleasing fire for your enjoyment. If your fireplace is equipped with a central forced air
system, make sure the central blower is turned off during reloading to avoid smoking
problems.
3.2.9 Smoking – Causes and Troubleshooting
To reduce the likelihood of smoking when opening the doors, set the air damper to the
"accelerated combustion" position before opening the doors. Your fireplace has been
designed and tested to provide smoke free operation. Occasionally, there may be a small
amount of smoking upon lighting the fire, until the chimney heats up but this should not
continue. If the fireplace does continue to smoke, it is probably for one of the following
reasons
1. The door is partly open
Open both doors fully when opening them.
2. Negative pressure in the house
As the fire burns, air goes up the chimney. This air must be replaced through leakage into

7
the house or through the outside air duct. When operating the BIS ULTRA™ fireplace,
open a nearby window temporarily to check adequacy of the replacement air supply.
3. Fans operating (e.g.: range hood)
These fans draw air out of the house and may actually cause a negative pressure in the
house. Turn off all fans and open a nearby window to determine if this is the cause of the
problem.
4. Wet wood
Wet or tarred wood will smoulder and smoke instead of burn properly.
5. Dirty or blocked chimney
Check to make sure the chimney is clear and reasonably clean.
. Chimney not long enough
The minimum chimney height is 12 ft., not including the fireplace height. The chimney
must extend at least 3 feet (915 mm) above its point of contact with the roof and at least 2
feet (610 mm) higher than any roof or wall within 10 feet (3 m) of it. When installed
with offsets, the minimum chimney height is 15 ft. Additional height will increase
draught and will decrease the tendency to smoke.
7. Poor chimney draft
With no fire, there should be sufficient draught to exhaust cigarette smoke introduced
under the baffle. Chimneys installed against an outside wall without protection may
generate back draught problems that will cause start-up problems. To prevent such
situation, open a nearby window, roll up a piece of paper and light it. Then, hold it in the
upper part of the firebox to warm up the chimney. Wait until the draught is sufficient,
and then start the fire.
8. Blower for central forced air kit operating (Not EPA approved)
Make sure that the blower is at the "off" position when you open the fireplace doors for
reloading.
3.2.10 Important Notes
1. Do not block the hot air vents of the fireplace, as this will cause the fireplace to
overheat.
2. Never start a fire using gasoline, kerosene, charcoal lighter fluid or any other
combustible liquid.
3. Do not burn coal. The sulphur in coal will corrode the firebox.
4. Do not burn driftwood that has been in the ocean or salt water. The salt will corrode
the firebox and chimney.
5. Do not operate the unit with the doors partly open since this may cause smoke to be
drawn into the room.
6. Do not burn wood in the area in front of the grate.
7. Do not abuse the unit by burning paper, or cardboard or construction material such as
pressed wood, plywood or lumber.
8. Do not allow the wood to smoulder or burn without flame, since this will produce
excessive creosote in the unit.

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3.3 MAINTAINING YOUR BIS ULTRA™
3.3.1 Creosote
When wood is burned slowly, it produces tar and other organic vapours which combine
with expelled moisture to form a black deposit called creosote that accumulates on the
flue lining. When ignited, this creosote makes an extremely hot fire. If the creosote
accumulation is large, a creosote fire in the chimney can damage the chimney and
overheat the surrounding wood framing. Creosote formation in a chimney can be
minimised by making small hot fires rather than slow burning, smouldering fires and by
proper refuelling techniques.
3.3.2 Chimney Maintenance
Regular chimney inspection and maintenance combined with proper operation will
prevent chimney fires. Keep your chimney clean. Do not allow more than 1/16" creosote
build up in your chimney. The amount of creosote will depend on variables such as
frequency of use and type of fire. We recommend that you
1. Initially inspect the chimney system weekly. From this, you will learn how often it
will be necessary to clean your chimney.
2. Have your chimney cleaned by a qualified chimney sweep. If you wish to clean it
yourself, we recommend using a stiff plastic or non-metallic brush. If a metal brush is
used, its size should be slightly smaller than the flue to avoid damaging the chimney.
Do not use a brush that will scratch the stainless steel interior of the chimney.
3. Do not expect chemical cleaners to keep your chimney clean. The rain cap can be
removed for inspection and/or cleaning of the chimney. Using gloves, firmly grip the
lower portion of the rain cap. Turn the cap 1/8 of a turn counter-clockwise and lift it
off the chimney.
3.3.3 Dealing with a Chimney Fire
Regular chimney maintenance and inspection can prevent chimney fires. If you have a
chimney fire, follow these steps
1. Close the fireplace doors and the combustion air damper.
2. Alert your family of the possible danger.
3. If you require assistance, alert your fire department.
4. If possible, use a dry chemical fire extinguisher, baking soda or sand to control the
fire. Do not use water as it may cause a dangerous steam explosion.
5. Check outside to ensure that sparks and hot embers coming out of the chimney are not
igniting the roof.
6. Do not use the fireplace again until your chimney and fireplace have been inspected
by a qualified chimney sweep or a Fire Department Inspector.

9
3.3.4 Doorframe Care
Use a glass cleaner and a soft cloth to polish the frame. Do not use abrasives such as
steel wool or steel pads for they may scratch the doorframe finish.
3.3.5 Ashes
Remove ashes only when the fire is out and the ashes are cold (24 to 48 hours after the
fire is out). Open the bottom louver and doors, lift the door trap lever, and remove the
plug on the door trap of the ashtray using gloves or a poker. Sweep the ashes in the
opening with a brush or any similar tool. Reinstall the plug on the door trap and pull
down the lever.
3.3.6 Refractory Brick Replacement
The intense heat of the fire will normally cause hairline cracks in the refractory. These
cracks can be minimised by proper curing as described in "First Fires". They will not
normally diminish the effectiveness of the refractory. If large cracks develop, then the
refractory should be replaced. To replace the refractory bricks, follow these steps
1. Remove deflector plate
2. Remove the bottom
refractory brick
3. Remove the left side
refractory brick
4. Remove the right side
refractory brick
5. Remove the back refractory
brick
6. Remove the front baffle
refractory
7. Remove the rear baffle
refractory
To install the new refractory bricks,
follow the above steps in reverse.
Figure 2

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3.3.7 Doors Installation
The doors must be installed only
when the installation of the BIS
ULTRA™ fireplace is completed.
All you have to do is fit the male
part of the hinge, already fixed on
the doors, in the female part, which
is already fixed on the fireplace.
To remove the doors, simply pull the
doors up from the hinges.
The adjustment of the doors has
been set at the factory. If the fit is
still not perfect, you can adjust the
doors using the hinge screws (see
fig.4).
Figure 3
3.3. Door Adjustment
The doors may need to be adjusted
to be completely airtight. For a door
to be considered air tight, a piece of
paper cannot be inserted in between
the façade of the fireplace and the
door gasket. The gasket air
tightness can be adjusted using the
adjustment screw located on the
fireplace façade at the bottom of the
fireplace opening. (An Allen key #
1/8 will be necessary for
adjustment).
Figure 4
3.3.9 Glass Care - Replacement
The glass used for the BIS ULTRA fireplace is a high temperature ceramic glass. If the
glass breaks, it must be replaced with a ceramic glass. Tempered glass or ordinary glass
will not withstand the high temperatures of the BIS ULTRA fireplace. Replacement glass
should be purchased from a Security Chimneys International dealer. Do not operate the
unit with cracked or broken glass.

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3.3.10 Glass Care - Cleaning
The BIS ULTRA™ fireplace is designed to keep the glass clean under normal operating
conditions. If the BIS ULTRA fireplace is operated continuously with the combustion air
damper closed, the glass will tend to get dirty unless the fuel, firebox and glass are
maintained at hot temperatures (see "Refuelling For Best Performance”). To clean the
glass, there are a number of specially designed cleaners. Your authorised Security
Chimneys International dealer can recommend a suitable cleaner which is available in
your area. Regular household glass cleaners will not clean creosote. Do not use
abrasives such as steel pads, steel wool or oven cleaner as they will scratch the glass.
DO NOT USE CHEMICAL GLASS CLEANERS ON PAINTED SURFACES AS IT
MAY CAUSE THE PAINT TO PEEL.
CAUTION Do not allow window cleaner to get in contact with door gasket or paint on
facade or door. Once closed, contact of glass cleaner with the fireplace facade can
provoke paint peeling off
3.3.11 Gasket Replacement
Remove the doors from the unit (see page 10) and lay them on a clean unabrasive surface.
To replace the gasket, first remove all of the old gasket and gasket cement. Make sure
that the surface is totally clean before applying new cement or adhesion problems may
result. Apply gasket cement to the gasket channel and install the new gasket. This
replacement part is available from your Security Chimneys International dealer in the
following dimensions
Gasket Length Quantity Dimensions
Around glass 47.5" 2 5/16" dia.
Between doors 19" 1 5/16" dia.
On door frame 40" 2 5/8" dia.
Around ash trap 8" 1 2" wide x 1/4" thick
3.3.12 Top Baffle Removal Prior to Cleaning the Chimney
Before starting to clean your chimney, we recommend that you remove the top baffle to
avoid creosote dust collection at the top of the baffle. Follow these steps to set the top
baffle out of the way.
1. Lift the front baffle to disengage the locating tab of the inclined deflector before taking
it out. Repeat for the other side.
2. Lift the front baffle and slide the back baffle under the first. You now have access to
the chimney.

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3.4 FIREPLACE INSTALLATION
3.4.1 Locating the BIS ULTRA™
1. The best place to install your fireplace is determined by considering the location of
windows, doors, and the traffic flow in the room where the fireplace is to be located,
allowing space in front of the unit for the hearth extension and the mantel, and taking
into consideration the location of the hot air ducts (optional), outside air kit and
chimney. If possible, you should choose a location where the chimney will pass
through the house without cutting floor or roof joists (see fireplace dimensions page
14).
2. Usually, no additional floor support is needed for the fireplace. The adequacy of the
floor can be checked by first estimating the weight of the fireplace system. Weights
are given in the appendix. Next, measure the area occupied by the fireplace that is
normally 38" X 24 ½". Note the floor construction and consult your local building
code to determine if additional support is needed.
3. A minimum of 7’ (2134 mm) measured from the floor to the ceiling is required to
install the BIS ULTRA fireplace. The appliance can be installed on a combustible
floor or on a base, leaving at least 6’8" (2032 mm) from the base of the unit to the
ceiling.
4. When selecting the location, the chimney outlet position and the direction of the wind
are important factor affecting the chimney performance. To allow a maximum draft
and to reduce wind turbulence, the chimney must
•Penetrate the highest part of the roof.
•Be installed as far as possible of roof offsets, trees or any other obstructions that may
cause wind turbulence and back drafts in the chimney.
•The least amount of offsets (elbows) possible.

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3.4.2 Hearth Extension Requirements
The BIS ULTRA™ fireplace may be installed directly on a combustible floor, however
the hearth extension in front of the fireplace must be made of non combustible material
and incorporate ½" cement board on the floor (fig.5). The cement board must be covered
with tile, marble, stone or other non-combustible material.
The floor between the fireplace and the hearth extension must be protected with a safety
metal strip. See points below according to the chosen solution.
-Position the supplied safety metal strip as follows One half must be under the
fireplace and the other half must extend on the floor over which the hearth extension
will be built (Figure 6a)
Elevated fireplace (figure 6b)
Elevated fireplace installations require a
special ‘Z’ metal safety strip (field provided),
in place of the metal strip shown on figure 6a.
The safety strip should extend the full width of
the fireplace. When more than one safety strip
is used they must overlap by a minimum of 1”.
Hearth extension of an elevated fireplace must
respect the same minimal dimensions as a
fireplace installed directly on the floor (figure 5)
Figure 6a
Floor
Safety metal strip
Cement board
1/2" min.
Hearth extension
non-combustible
finish material
The crack between
the fireplace and the
hearth extension
must be sealed with
a non-combustible
material such as
sand-cement grout
Fireplace
‘Z’safety strip Figure 6b
Figure 5

14
3.4.3 Framing, Facing and Mantel
The construction of the framing, facing, and mantel must be in accordance with the
standards and the following illustrations (figures 7 to 11)
1. Frame the fireplace using 2" x 3" or heavier lumber.
2. WARNING: Combustible materials cannot be used in the space directly above the
fireplace (except for framing on the front facing). This area must remain empty for a
height of '8" (2032 mm) measured from the base of the appliance.
3. Frame the fireplace with vertical studs at the sides of the fireplace running from floor
to ceiling (see figure 8). If combustible facing is to be used, position the studs back,
from the front edge of the fireplace, a space the thickness of the facing material so that
the facing can be installed flush with the fireplace facing. Frame headers between the
vertical studs only as follows
- Place 2" x 3" or 2" x 4" headers, only along the upper part of the front, side and
back faces. Do not put wood or any combustible material within the area above the
fireplace except on the front facing. Place headers only as required to support the
facing and mantel.
4. The fireplace cannot be in contact with the house insulation material. Cover the
insulation with drywall panels or other rigid materials around the fireplace.
Figure 7
Figure 9
Figure 8 Figure 10

15
INSULATED CHASE CONSTRUCTION
Nailing flanges
Four nailing flanges are provided to secure
the fireplace on the floor (see figure
beside). Bend the nailing flanges down so
each flange is flush with the floor, then
using nails or screws, secure the fireplace
to the floor (2 places each side). The
heads of the screws or nails must be large
enough to cover the holes in the nailing
flanges.
Figure 11
Nailing flange
Unbend to floor
and nail/screw

16
Facing
1. Combustible wall (such as drywall) must be installed flush with the fireplace. It may
not project in front of and on the fireplace (i.e. the steel façade of the fireplace) (fig. 12)
2. Decorative frame made of combustible material cannot project in front of and on the
fireplace steel front, in the space delimited by the width of the unit (38") and a height of
48" from the base of the appliance.
3. Non-combustible materials such as brick, stone or ceramic tile may project in front of
and onto the fireplace facing (figure 13).
Mantel
The mantel must be installed at least 48" (1016 mm) above the base of the fireplace
(figure 12).
Figure 12 Figure 13
3.5 HOT AIR DUCTING INSTALLATION
Different hot air ducting systems can be installed with the BIS ULTRA™
-Gravity kit
-Forced air kit (Not EPA approved) (p. 18)
3.5.1 Gravity Kit
Double hot air outlet including :
(See Figure 15)
- 2 telescopic lengths 8" I.D.
- 2 90º elbows 8" I.D.
- 2 hot air outlet kits
(louvers and frames)
- 2 adaptors
See components list on last page

17
NOTE : To install the single hot air outlet, in conjunction with AC chimney, the
chimney must be offset towards the back using 2 – 30 deg. elbows back to back on the
fireplace.
The only fan that can be used with the gravity kit is the UZY5
The gravity kit allows you to block the upper grill of the fireplace. To do so, follow the
steps below
a) Remove the upper grill and its frame from the fireplace.
b) Install the panel for clean face option (BISCF) making sure that the insulation strip is
installed inside.
c) The fireplace façade can be covered with non-combustible material (fig. 16).
The safety rules for hot air ducting gravity kit installations are the following
Minimum height * 68" (1727 mm)
Maximum length See figure 15
* The height of the louver must be measured from the base of the BIS to the
middle point of the louver
When installing the double outlet system, the hot air outlets can be installed in the same
room as the fireplace, or one or both of the outlets can be installed in adjacent or upper
rooms. Installing the ducts at different elevations will tend to exhaust more heat out of
the higher outlet (figure 15).
NOTE: both pipes of the double hot air outlet must be installed. Any other installation
may cause fire and void the warranty.
Figure 14

18
The duct system must be installed respecting the following
1. Remove the top and bottom plates closing up the 8" dia. holes on top of the fireplace. Then,
cut the insulation in order to obtain two 8" dia. openings. Fix the adaptors on the fireplace
openings by turning clockwise (figure 14)
2. Maintain at least a 2" (50mm) clearance between the ducts and any combustible material; the
required hole size is 13" x 13" (330 mm x 330 mm).
Exception #1: For the grills, the framing can be 10 ¾" x 10 ¾" (275 mm x 275 mm) to
provide the clearance as required by the integral spacers on the double outlet duct system.
3. The maximum number of elbows in a run of duct is two.
4. Maintain at least 6 ½" (160 mm) clearance from the outlet grill framing to a combustible
ceiling, side wall or mantel.
5. When traversing a combustible wall or floor, a fire stop must be installed at the wall or floor
penetration. The hole size must be 13" X 13". (330 mm x 330 mm)
6. Do not connect the hot air ducts to a central heating system. Malfunction of the heating
system’s fan will cause the fireplace to overheat. A furnace duct is only single wall and not
double wall as is required for the BIS ULTRA™ hot air exhaust
7. Use only Security Chimneys International grills and components as described in this manual.
Other grills or registers, for example, may be too restrictive and may overheat the fireplace or
ceiling.
8. Do not use insulated flexible ducts, as they may overheat.
9. Do not use tees or any other components than the ones specifically listed here.
10. All ducts must extend upwards or horizontally. Never try to route the ducting downward.
11. The hot air outlet grills must be installed with the louvers pointing downwards in order to
prevent overheating adjacent ceilings.
Figure 15
Figure 16