Heatilator G141 User manual

10-00 1 32921 Rev A
Heatilator
1915 W. Saunders Street
Mt. Pleasant, IA 52641
A Division of Hearth echnologies Inc.
G141 SERIES B-VENT GAS APPLIANCE
OWNERS MANUAL
AND INSTALLATION INSTRUCTIONS
MODELS G141, G141L, G141E, G141LE
WARNING!
Installation and service must be performed by a qualified installer, service agency or the gas supplier.
Improper installation, ad ustment, alteration, service or maintenance can cause in ury or property dam-
age. Refer to this manual. For assistance or additional information, consult a qualified installer, ser-
vice agency or the gas supplier.
WARNING: If the information in this manual
is not followed exactly, a fire or explosion may
result causing property damage, personal in-
jury or loss of life.
 Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
 What to do if you smell gas
 Do not try to light any appliance.
 Do not touch any electrical switch; do not
use any phone in your building.
 Immediately call your gas supplier from a
neighbors phone. Follow the gas suppliers
instructions.
 If you cannot reach your gas supplier, call
the fire department.
 Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.
This manual must be used for installation of the
G141 eries Gas Appliance and retained by the
homeowner for operation and maintenance
instructions.
CAUTION:
Do not expose the fireplace to
the elements (such as rain, etc.)

32921 Rev A 2 10-00
G141 SERIES B-VENT GAS APPLIANCE
Safety Precautions
1. Please read these installation instructions
completely before beginning installation
procedures. Failure to follow them could cause a
malfunction resulting in serious injury and/or
property damage.
2. Always check your local building codes prior to
installation. The installation must comply with all
local regional state and national codes and
regulations.
3. Installation and repair should be done by a
qualified service person. This appliance should
also be inspected annually by a qualified service
person. More frequent inspections/cleaning may
be required due to excessive lint from carpeting
bedding material etc. It is imperative that the
control compartment and burners of the
appliance be kept clean.
4. The G141 is a vented gas fireplace. Do not burn
wood or other material in this appliance.
5. NEVER leave children unattended when there is
a fire burning in the fireplace.
6. This appliance must be vented with a minimum
5 B-Vent system and must terminate above the
roof line. Venting must not be connected to a
chimney flue servicing a solid fuel burning
appliance.
7. Use only the fuel gas specified on the rating label
of this gas appliance.
8. The appliance area shall be kept clear and free
from combustible materials gasoline and other
flammable vapors and liquids.
9. While servicing this appliance always shut off all
electricity and gas to the fireplace. This will prevent
possible electrical shock or burns. Also make
sure the fireplace is completely cooled before
servicing.
10. The appliance and its individual shut-off valve
must be disconnected from the gas supply piping
system during any pressure testing of that system
at test pressures in excess of 1/2 psi (3.5 kPa).
11. Do not use this appliance if any part has been
under water. Immediately call a qualified service
technician to inspect the appliance and to replace
any part of the control system and any gas control
which has been under water.
12. Be sure to provide adequate clearances around
the air openings into the combustion chamber
and adequate accessibility clearances for
servicing and proper operation.
13. Provisions shall be made to provide adequate
combustion and ventilation air. The flow of
combustion and ventilation air should not be
obstructed.
Table of Contents
A. Preparation ..................................................................................................................... 3
B. Locations & Clearances .................................................................................................. 5
C. Framing ........................................................................................................................... 6
D. Setting the Fireplace........................................................................................................ 6
E. Venting ............................................................................................................................ 7
F. tilities .......................................................................................................................... 10
G. Finishing Materials......................................................................................................... 15
H. Firebox Preparation ....................................................................................................... 16
J. Lighting Instructions ....................................................................................................... 18
K. Seasonal Checklist ........................................................................................................ 20
L. Maintenance Instructions ................................................................................................ 21
M. Trouble Shooting ............................................................................................................ 24
N. Optional Components .................................................................................................... 26
O. Replacement Parts ........................................................................................................ 27

10-00 3 32921 Rev A
G141 SERIES B-VENT GAS APPLIANCE
A. PREPARATION
1. CERTIFICATION.
he G141 Series Gas Fireplace has been tested in
accordance with the standard ANSI Z21.50-1998-
CGA 2.22-M98. he G141 has been certified by
Underwriters Laboratories Inc. for installation and
operation as described in these Installation
Instructions. All components are AGA or UL safety
certified.
2. LOCAL CODES.
Check with your local building code agency prior
to installing this appliance to ensure compliance
with local codes, including the need for permits
and follow-up inspections. his appliance must
conform with local codes, or in the absence of local
codes, comply with the National Fuel Gas Code,
ANSI Z223.1-latest edition in the U.S.; in Canada,
the CANI-B149-latest edition.
3. OPTIONAL COMPONENTS.
his gas appliance has been tested and listed for
use with the optional components listed below.
Many optional components may be purchased
separately and installed at a later date. However,
installation of a remote control will require electrical
power. o avoid costly reconstruction, a separate
The G141 B-Vent Gas Appliance
must consist of the following:
1. Fireplace
2. B-Vent System
3. ermination
Optional components include:
1. Remote Control
2. Outside Air Kit
3. Glass Doors
4. Refractory Upgrade
5. Quick ile rim
6. ID4
7. UD4
course of electrical power should be supplied to
the fireplace at the time of initial installation of the
system for possible addition of these accessories
at a later date.
4. FUEL.
Any additions, changes or conversions required
in order for the appliance to satisfactorily meet
the application needs, must be made by a
qualified service technician using factory
specified and approved parts.
his product is manufactured to use natural gas or
propane gas, depending on model purchased. A
natural gas fireplace can be converted to use
propane gas later, but only if done by a qualified
service technician and only if the CKP Natural Gas
to Propane Gas Conversion Kit is used. In the event
your appliance must be converted to natural gas
from propane, you must use a CKN Propane Gas
to Natural Gas Conversion Kit.
If any assistance is required during installation, please
contact your local dealer or contact Heatilator, echnical
Services Department, 1915 W. Saunders Street, Mt.
Pleasant, Iowa 52641.
HEA ILA OR® is a registered trademark of Heatilator,
a Division of Hearth echnologies Inc.
he G141 Series is a vented gas fireplace. While a significant amount of heat is created by the G141, it is not
intended to be and, therefore, should not be used as a heater.
Note: Illustrations throughout these instructions
reflect typical installations and are for design
purposes only. Actual installation may vary slightly
due to individual design preferences. However,
minimum and maximum clearances must be
maintained at all times.
Tools and building supplies normally required
for installation:
Saw Wall-finishing materials
Pliers Framing material
Hammer Fireplace surround
Phillips screwdriver Caulking material
ape measure Plumb line
Level Electric drill/bits
Square

32921 Rev A 4 10-00
G141 SERIES B-VENT GAS APPLIANCE
Vertical ermination Cap
Storm Collar
Roof Flashing
Firestop Spacer
5 Gas B-Vent
Pipe Section(s)
he table below is a list of only those components which may be safely used with this decorative gas appliance.
Only trim kits supplied by the manufacturer shall be used in the installation of this appliance.
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10-00 5 32921 Rev A
G141 SERIES B-VENT GAS APPLIANCE
B. LOCATIONS & CLEARANCES
FRONT LEFT SIDE TOPRIGHT SIDE
FIREBOX DIMENSIONS
1. LOCATION AND SPACE REQUIREMENTS.
his appliance may be installed along a wall, across a corner or in an exterior chase. DO NOT install B-Vent
Gas Appliances in strong negative air locations, such as a basement or a public facility. This fireplace
uses room air for normal operation and could have problems establishing a positive draft in negative
air locations. In lieu, we recommend a direct vent appliance. he G141 Series may be installed at a
height level with the floor, or it can be raised up from the floor to enhance its visual impact. Figure 1 illustrates
a variety of ways the fireplace may be located in a room. hese fireplaces are also certified for installation in
a bedroom or bed/sitting room in the U.S. and Canada. (Bedroom installations in Canada require the addition
of non-operable doors.)
2. CLEARANCES.
he following clearances to combustibles must be maintained: Minimum clearances to the top standoffs of the
fireplace - 0, floor - 0, back - 1, sides - 1, face of the fireplace to ceiling - 30. Minimum clearances to venting
are as follows: Horizontal run sections require a 3 minimum air space on the top and a 1 minimum air space
on the sides and bottom of the vent section. Venting that is vertical requires a 1 minimum air space completely
around the vent section.
Figure 1 Fireplace Locations and Clearances
1
Min.
40
171
17
65
46
36
38
365/8
21
Junction Box
Air Kit
Gas Line
363/4
23/4
3
311/2
153/4
38
19
1016
321/2
WARNING!
Before moving to the following pages, do the following:
1. Wear gloves and safety glasses for protection.
2. Keep hand tools in good condition. Sharpen cutting edges and make sure tool handles are secure.
3. Always maintain the minimum air space required to the enclosure to prevent fire.

32921 Rev A 6 10-00
G141 SERIES B-VENT GAS APPLIANCE
C. FRAMING
1. FRAMING THE FIREPLACE.
he G141 Series Gas Appliance will fit a framed opening of 17 deep x 40-1/4 wide x 36-3/4 tall.
Figure 2 shows a typical framing of this appliance assuming combustible materials are used. All required
clearances to combustibles around the fireplace must be adhered to. A 1 air space clearance must be
maintained at the back and sides of the firebox assembly. Any framing on top of the fireplace must be above
the top standoffs. Vent sections for a horizontal run require a 3 minimum air space clearance on top and a 1
minimum air space clearance on the sides and bottom. Vertical vent sections require a 1 minimum air space
clearance completely around the vent section.
Note: If a hand held Remote Control (RC4 or RC5)
is to be used, wiring must be done prior to finish-
ing to avoid reconstruction.
Note: he Wall Switch must be wired prior to apply-
ing the finishing material to the wall in order to avoid
reconstruction.
Figure 3 Mantle Heights
Figure 2 Framing Requirements
his fireplace may be placed on either a combustible
or noncombustible continuous, flat surface. If the
fireplace is installed on combustible flooring other than
wood, a metal or wood panel needs to be installed
underneath the appliance extending its full width and
depth. Slide the fireplace into position and level the
fireplace from side-to-side and front-to-back. Shim with
noncombustible material, such as sheet metal, as
necessary.
Secure the fireplace by bending out the nailing flanges
located on each side of the fireplace and nailing the
fireplace to the framing. See Figure 4. Figure 4 Nailing Flanges
D. SETTING THE FIREPLACE
9 to 12 Mantel Projection: 41 height
0 to 9 Mantel Projection: 38 height
Mini u vent
clearances are
per vent
anufacturers
specifications
17
401/4
363/4
Minimum allowable mantel heights are shown in
Figure 3. All required clearances must be adhered
to.

10-00 7 32921 Rev A
G141 SERIES B-VENT GAS APPLIANCE
E. VENTING
Figure 5 Venting Off The Top of Appliance
Note: he horizontal run of vent must have a
1/4 rise for every 1 ft. of run towards the termi-
nation. Never allow the vent to run downward.
his could cause high temperatures and may
present the possibility of a fire.
1. TERMINATION.
Common venting of this gas appliance with other
gas appliances is not allowed.
his fireplace requires the use of a 5 B-vent pipe
for operation and must be terminated above the
roof line. Never downsize pipe. Follow all B-vent
requirements and installation instructions.
he minimum height of vent installation must be 9
from the top or 12 from the base of the appliance.
Horizontal run must never exceed 20% of the height
of the vent system as shown in Figure 5.
he Figures 5 and 6 show the maximum distances
from the base of the fireplace, as well as the
minimum air space clearances that must be
maintained during termination of this appliance.
Maximum straight unsupported rise - 25 feet;
maximum horizontal unsupported run - 3 feet; air
space clearances around vertical rise - 1 on all
sides; air space clearances around the horizontal
run - 3 on top and 1 on sides and bottom; maximum
height - 40 from the base of the fireplace.
Figure 6 Framing Requirements
9 Min.
Metal plu bers strap
secured to fra ing
Vent supports are per
vent anufacturers
specifications
Mini u clearances are per vent
anufacturers specifications
40
Max.

32921 Rev A 8 10-00
G141 SERIES B-VENT GAS APPLIANCE
2. ASSEMBLY.
a. Assembling Vent ections. Attach a straight
vent section to the top of the fireplace. Elbows
directly off the top of the fireplace are not
allowed. his may cause the fireplace to
operate ineffectively. Secure the attached vent
section to the appliance with the three screws
supplied. Use only B-vent sections.
b. Using Elbows. Elbows 45 degrees and greater
from the vertical shall be considered horizontal
and therefore adopt horizontal run limitations.
See Figure 7.
c. Penetrating the Ceiling. Mark and cut out
an opening in the ceiling for the firestop spacer.
Frame the opening with the same size lumber
used in the ceiling joists.
d. Installing the Firestop pacers. Firestop
spacers must be used whenever the venting
penetrates a ceiling/floor area.
In all situations, firestop spacers are to be
nailed to the ceiling joists from the bottom or
appliance side, EXCEP when the space above
is an insulated ceiling or attic space. In this
situation, the firestop spacer must be nailed
from the top side to prevent loose insulation
from falling into the required one inch air space
around the vent system.
Install the firestop spacer by positioning and
nailing the four sides of the firestop spacer to
the joists using a minimum of three nails per
side.
e. ecuring Vent ystem. Continue assembling
the vent sections up through the firestop
spacers as needed. Vent sections must be
locked into position. Elbows and chimney
stabilizers have straps for securing these parts
to joists or rafters.
f. Marking the Exit Point in the Roof. Locate
the point where the venting will exit the roof by
plumbing down to the center of the vent system.
Drive a nail up through the roof to mark the
center. See Figure 8.
g. Cutting Out the Hole in the Roof. Measure
to either side of the nail and mark that 7 x 7
opening required (must meet minimum
clearances per venting requirements). his is
measured on the horizontal; actual length may
Note: Be sure to provide intermediate support
for the vent during construction and check to
be sure inadvertent loading has not dislodged
the vent from the appliance or any vent joint.
Figure 7 Using Elbows
WARNING!
When vent sections exceeding 3 feet
in length are installed between an off-
set and return, structural support must
be provided to reduce off-center load-
ing and prevent vent sections from
separating at the vent oints. Follow all
B-vent manufacturer guidelines.
Figure 8 Exiting Through the Roof

10-00 9 32921 Rev A
G141 SERIES B-VENT GAS APPLIANCE
Figure 9
Vent Height for Vertical Termination
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Figure 10
Minimum Termination Height
be larger depending on the pitch of the roof.
Cut out and frame the opening. See the Uniform
Building Code for Roof Framing details. A one
inch minimum air space clearance must be
maintained between the vent section and the
roof.
h. Install Roof Flashing or ite-Produced
Chase Top. Position a roof flashing or a site-
produced chase to and secure into place.
i. Assembling Vent ections. Continue to add
vent sections through the roof opening,
maintaining a minimum of one inch air space
clearance.
j. Termination Cap. Major building codes
specify a minimum termination height above
the roof top depending on the roof pitch. See
Figures 9 and 10.
hese termination heights are necessary in the
interest of safety and do not guarantee proper
operation. rees, buildings, adjoining roof lines,
adverse wind conditions, etc. may create a
need for a taller roof termination should down
drafting occur.
o install the termination cap, slide the cap
vent sections into the vent pipe. Secure the
cap using the screws provided.
k. Checking the Vent ystem. Periodically the
venting system should be tested to assure
proper operation. his can be done with a
match while the fireplace is operating.
Hold a lighted match at the top edge of the
firebox opening. If the flames and smoke remain
upright, ventilation is acceptable. If the flames
and smoke are drawn into the firebox, this
means ventilation is good. If the flames and
smoke are forced away from the firebox, this
may indicate a ventilation blockage or down
draft resulting in gas spillage into your home. If
this occurs, turn off the fireplace and do not
burn it until it has been inspected by a qualified
service person.
If you have installed optional doors, close the
doors and conduct the test following the same
instructions above. See Figure 11.
Listed
Cap
Listed
Gas
Vent
Roof
Flashing
Secured
with
Nails
Stor
Collar

32921 Rev A 10 10-00
G141 SERIES B-VENT GAS APPLIANCE
3. DOUBLE CHECKING.
When construction of the entire vent system has
been completed, double check to make sure all
venting pipes and termination caps are
unobstructed.
Figure 11 Testing Ventilation
Note: he appliance and its individual shut-off valve
must be disconnected from the gas supply piping
system during any pressure testing of that system
at test pressures in excess of 1/2 psi (3.5 kPa). he
appliance must be isolated from the gas supply pip-
ing system by closing its individual manual shut-off
valve during any pressure testing of the gas supply
piping system at test pressures equal to or less than
1/2 psi (3.5 kPa).
Note: Although each fireplace is leak tested in the
factory, it is mandatory during the first burn for you to
check for leaks. hese may occur due to handling,
shipping, and installation and are beyond the control
of Heatilator. Every joint, including the valve, pilot,
fittings, etc. must be checked.
F. UTILITIES
Installation and repair should be done by a qualified service person. The appliance should be in-
spected before use and at least annually by a qualified service person. ore frequent cleaning may
be required due to excessive lint from carpeting, bedding material, etc. It is imperative that control
compartments, burners and circulating air passageways of the appliance be kept clean.
Due to high temperatures, the appliance should be located out of traffic and away from furniture
and draperies.
WARNING!
This appliance may use the B-Vent chimney system only and must not be connected
to a chimney flue servicing a separate solid fuel burning appliance.
1. GAS PRESSURE.
For natural gas, the minimum inlet gas supply pressure is 4.5 inches water column, and the maximum inlet
gas pressure is 7.0 inches water column, for the purpose of input adjustment. Input rate is 20,000 B U/hr
(natural gas) and 19,000 B U/hr. (propane gas). For propane gas, the inlet gas supply pressure must be at
least 11.0 inches water column and a maximum 14.0 inches water column.
A 1/8 NP plugged tapping is provided on the gas control valve, near the outlet to the main burner immediately
upstream of the gas supply connection to the appliance, accessible for a test gage connection.
Optimum manifold pressure is 3.5 inches water column for natural gas, and 10.0 inches water column for
propane gas.

10-00 11 32921 Rev A
G141 SERIES B-VENT GAS APPLIANCE
4. GAS LINE INSTALLATION.
Install the gas line piping into the right side of the gas appliance. A separate shut-off gas valve should always
be used.
Note: A manual shutoff valve should be connected
directly to the pipe inside the gas appliance and
then connected to the valve.
After finishing the gas line installation, be sure to
place insulation or silicone sealant around the
incoming gas line to prevent cold air infiltration into
this gas appliance. See Figure 12.
. ACCESS PANEL REMOVAL.
o remove the access panel, lift by the tabs and
set aside. See Figure 13.
Figure 12 Gas Line
Figure 13 Access Panel Removal
2. HIGH ALTITUDE INSTALLATION
a. U. . Installation. Fireplaces are tested and approved for elevations from 0-2000 feet.
When installing this fireplace at an elevation above 2000 feet, United States codes require a decrease of
the input rating by changing the existing burner orifice.
Input should be reduced 4% for each 1000 feet above sea level. Check with the local gas utility for proper
orifice size identification. his fireplace uses a .089 inch orifice size on natural gas versions and a .052
inch orifice size on propane gas versions.
Consult your local gas company for assistance in determining the proper orifice for your location or refer
to ANSI Z223.1-latest edition, Appendix F.
b. Canadian Installation. Fireplaces are certified for elevations from 0-4500 feet. When installing this
fireplace at an elevation between 0-4500 feet in Canada, the input rating does not need to be reduced.
When installing this fireplace at an elevation above 4500 feet in Canada, check with local authorities.
3. LOCATION AND SPACE REQUIREMENTS.
his appliance may be installed along a wall, across a corner or in an exterior chase. DO NOT install B-Vent
gas appliances in strong negative air locations, such as a basement or a public facility. This fireplace
uses room air for normal operation and could have problems establishing a positive draft in negative
air locations. he G141 Series may be installed at a height level with the floor, or it can be raised up from the
floor to enhance its visual impact. Figure 1 illustrates a variety of ways the appliance may be located in a
room. hese appliances are also certified for installation in a bedroom or bed/sitting room in the U.S. and
Canada. (Bedroom installations in Canada require the addition of non-operable doors.)
23/4
5. GAS LINE CONNECTION.
Connect the gas line to the appliance manual valve
inlet, using 1/2 pipe. Gas connections can be made
from the control area by removing the access panel.
All connections must be checked for leaks with a
soap and water solution or a leak detector.
At this time, bleed the gas line to extract any air
that may be trapped inside the pipe.

32921 Rev A 12 10-00
G141 SERIES B-VENT GAS APPLIANCE
7. WIRING
a. Electronic Ignition
1) Appliance Requirements. his appliance
requires a 110V AC supply from the junction
box for operation. A wiring diagram is shown
in Figure 14.
2) Wall witch. Position the switch in the
desired place on the wall and wire to the
appliance.
3) Optional Accessories Requirements.
Optional accessories may be added now
or at a later date, however, wiring should
be done now to avoid significant wall
reconstruction.
Figure 14 Electronic Ignition Wiring Diagram
Note: This appliance must be electrically wired
and grounded in accordance with local codes
or, in the absence of local codes, with National
Electric Code ANSI/NFPA 70-latest edition or
CSA C22.1 Canadian Electrical Code, Part 1
Safety Standard for Electrical Installations. This
appliance is not intended for use with a ther-
mostat. The addition of a thermostat will void
the warranty and may create a fire hazard.
Junction Box Detail
14-2 with
Ground Wiring
Reco ended

10-00 13 32921 Rev A
G141 SERIES B-VENT GAS APPLIANCE
b. tanding Pilot Ignition
Note: his appliance must be electrically
wired and grounded in accordance with local
codes or, in the absence of local codes, with
National Electric Code ANSI/NFPA 70-latest
edition. his appliance is not intended for use
with a thermostat. he addition of a thermo-
stat will void the warranty and may create a
fire hazard.
Note: his appliance DOES NO require a
110V power supply for operation. Connect-
ing the wall switch to a 110V power supply
will cause the fireplace to malfunction and
destroy the valve and thermopile.
Figure 15
Standing Pilot Ignition Wiring Diagram
1) Remote Wall witch. Position the
junction box in the desired place on the
wall. Wiring located for the wall switch will
be found protruding from the right side of
the fireplace. Run the wire to the junction
box, connect to a wall switch and mount
to the desired position on the wall. A wiring
diagram is shown in Figure 15.
If you extend beyond the wall switch wires
provided, you must not use wire nut
extensions, but replace existing wires with
desired length. NOTE: Extended lengths
of wire will reduce millivolt readings
and may cause fireplace shutdowns.
2) Optional Accessories Requirements.
Optional accessories may be added now
or at a later date. However, wiring should
be done now to avoid significant wall
reconstruction later if accessories are
added. he remote control (RC4) requires
a separate 110V AC supply directly to the
appliance junction box, as shown in
Figure 15. Wiring diagrams are provided
with all accessories.
Junction Box Detail
14-2 with
Ground Ro ex
Reco ended

32921 Rev A 14 10-00
G141 SERIES B-VENT GAS APPLIANCE
8. INSTALLING THE OUTSIDE AIR (OA)
KIT.
Many possible locations are available for your
outside air inlet. Figure 16 demonstrates two
possible locations. A three-foot minimum height
difference must be maintained from the top of the
roof termination to the outside combustion air inlet
(see Figure 16). Be sure to check vent height
requirements for the firebox before attempting any
basement location. he air inlet should be of
sufficient height to prevent snow or other materials
from blocking it. Ducting must be ordered
separately. he vent inlet must be connected to an
air supply outside of the building and must not exit
higher than the building soffit.
WARNING!
When locating the appliance in a space
projecting into a garage, the outside air
must not be taken from the garage space.
Exhaust products of gasoline engines are
hazardous. Do not install outside air ducts
such that the air may be drawn from attic
spaces, basements, or above the roofing
where other heating appliances or fans and
chimneys, exhaust or utilize air.
WARNING!
ignificant cold air may infiltrate through
the duct or other parts of this system. To
guard against this, check for light leaks with
a flashlight and seal these with duct tape
and/or insulation.
Figure 16 Outside Air Kit Installation
Figure 18 Connecting the Control Arm
Figure 17 Installing the Outside Air Kit
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a. Installing the Damper of the OA Kit. Insert
the control arm through the rectangular opening
in the side of the fireplace. he notches on the
control arm should be placed downward. The
hinge on the damper should face toward
the front of the fireplace. If the hinge and
the control arm are not positioned in this
manner, the damper will not function correctly.
Figure 17 demonstrates the correct order in
which the air kit assembly should take place.
Attach the damper assembly to the fireplace
using the screws provided in the fastener
package.
b. Assembling the Control Arm of the OA Kit.
Connect the control arm onto the damper
assembly. See Figure 18. Remove the access
panel on the side of the fireplace.
1 2 3 4
5

10-00 15 32921 Rev A
G141 SERIES B-VENT GAS APPLIANCE
Check the operation of the air kit damper by
pulling the control arm out to a fully open
position, catching the last notch of the control
arm to lock it in place. Push the control arm
inward to fully close the damper. Intermediate
notches in the control arm can be used to
adjust incoming air.
c. Cutting the Exterior Hole. Mark and cut out
a 4 diameter hole in the exterior wall for air
entry. his hole should allow framing (minimum
of 2 sides) so the 4 tube assembly may be
nailed into position, flush with the exterior wall
of the building.
d. Attaching the Flexible Duct. Assemble the
flexible duct between the damper assembly and
the tube assembly. Secure it into position with
the provided clamp ties.
Figure 19 Finishing Materials
When finishing the face of the appliance,
combustible material may be brought up to the
sides of the appliance, but must never overlap onto
the black metal. he black metal may be covered
with noncombustible material only.
After applying the finishing material, a
noncombustible sealant, one-half inch wide
maximum, must be used to close off any gaps at
the top and sides between the fireplace and finishing
to prevent cold air leaks. See Figure 19.
A combustible mantel may be installed at a
minimum of 38 inches above the base of the
appliance.
Only noncombustible materials may be used to
cover the black surface of the firebox front.
1. COMBUSTIBLE MATERIALS.
Material made of or surfaced with wood, compressed
paper, plant fibers, plastics, or any material capable
of igniting and burning, whether flame proofed or
not, plastered or unplastered.
2. NONCOMBUSTIBLE MATERIAL.
Material which will not ignite and burn. Such
materials are those consisting entirely of steel, iron,
brick, tile, concrete, slate, glass or plasters, or a
combination of the materials.
G. FINISHING MATERIALS.
CAUTION:
DO NOT install B-Vent Gas Appliances in
strong negative air locations, such as a
basement or a public facility. Living rooms
with cathedral ceilings could be suscep-
tible to a negative air situation, but such
installations can be overcome through
raising the termination, depending on spe-
cific installations. This fireplace uses room
air for normal operation and could have
problems establishing a positive draft in
negative air locations. In lieu, we recom-
mend a direct vent appliance.
3. HIGH TEMPERATURE SEALANT
MATERIAL.
Sealants that will withstand high temperatures;
General Electric R V103 Black or equivalent,
Rutland, Inc. Fireplace Mortar #63 or equivalent.
After completing the framing and applying the facing
material (dry wall) over the framing, a
noncombustible sealant, one-half inch wide
maximum bead, must be used to close off any gaps
at the top and sides between the fireplace and
facing to prevent cold air leaks. See Figure 19.

32921 Rev A 16 10-00
G141 SERIES B-VENT GAS APPLIANCE
Note: he placement of the lava rock and rock
wool is very critical to the appearance of the fire-
place looks during its operation. Please take time
during this portion of the setup to achieve the
best appearance.
Figure 21 Placing the Lava Rock
Figure 22 Placing the Vermiculite
Figure 20 Grate Bars
1. PLACING THE GRATE BARS
he grate bars will be shipped under the hearth
pan. Place them in the holes in the grate support.
he fit will be loose. he bar should lean forward
slightly. See Figure 20.
2. PLACING THE LAVA ROCK.
Spread the lava rock on the hearth pan just in front
and on the sides of the logs. See Figure 21.
3. PLACING THE VERMICULITE.
Sprinkle over the lava rock. See Figure 22.
H. FIREBO PREPARATION
WARNING!
Do not hit, strike, or slam shut the glass.
WARNING!
Do not operate this appliance if the glass
is broken or cracked.
4. PLACING THE ROCK WOOL.
Break the rock wool into pieces, no bigger than
1/2 diameter and place them on the burner tube.
his will create the glowing ember appearance when
the flame touches the rock wool. See Figure 23.
Figure 23 Placing the Rock Wool

10-00 17 32921 Rev A
G141 SERIES B-VENT GAS APPLIANCE
I. DETERMINING IGNITION
TO THE CONSUMER:
o determine whether your appliance is an electronic ignition or a standing pilot ignition, remove the access
panel to examine the wiring system. If your system has a red push button (as shown in Figure 24), you own
a standing pilot ignition fireplace. If no red button is present, you own an electronic ignition appliance.
You may also check the rating label located in the valve compartment (under the access panel) to determine
ignition type.
Figure 24 Standing Pilot Ignition
Figure 25 Electronic Valve Assembly
Red push button

32921 Rev A 18 10-00
G141 SERIES B-VENT GAS APPLIANCE
J. LIGHTING INSTRUCTIONS
A. This appliance has a pilot which must be lighted by hand. When lighting the pilot follow these instructions
exactly.
B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some
gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS:
 Do not try to light any appliance.
 Do not touch any electric switch; do not use any phone in your building.
 Immediately call your gas supplier from a neighbors phone. Follow the suppliers instructions.
 If you cannot reach your gas supplier call the fire department.
C. Use only your hand to close gas line. Never use tools. If the knob will not push in or turn by hand dont try to
repair it; call a qualified service technician. Force or attempted repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to
inspect the appliance and to replace any part of the control system and any gas control which as been under
water.
WARNING! If you do not follow these instructions exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
FOR YOUR SAFETY READ BEFORE OPERATING
STANDING PILOT LIGHTING INSTRUCTIONS
TO TURN OFF THE GAS TO THE APPLIANCE
1. Turn off the wall switch.
2. Remove/open access panel.
3. Turn gas line to CLOSED position. Do not force.
4. Replace/close control access panel.
1.Turn wall switch to the appliance to the OFF position.
2. Remove/open access panel.
3. Turn gas line to CLOSED. Wait 5 minutes to clear
out any gas. Then smell for gas including near the
floor. If you smell gas STOP! Follow B in the safety
information above on this label. If you dont smell
gas go to the next step.
4. Turn gas line to OPEN.
5. Turn pilot knob clockwise to OFF. (Knob may have
to be depressed to pass the PILOT position.)
6. Locate pilot assembly inside fireplace.
7. Locate red ignitor button.
8. Turn pilot knob to PILOT and push in.
9. Continue to hold in pilot knob and push the red
ignitor button 12-15 times until small blue pilot flame
appears.
10. Continue to hold in pilot knob for approximately one
minute. Pilot should remain lit. If pilot goes out wait
5 minutes and repeat Steps 4-9.
11. To light the main burner release and turn the knob
counterclockwise to ON. If the fireplace is connected
to a wall switch turn it to ON. Do not light by hand.
12. If the appliance will not operate follow the
instructions TO TURN OFF THE GAS TO THE
APPLIANCE and call your service technician or gas
supplier.
Figure 26
1. STANDING PILOT IGNITION

10-00 19 32921 Rev A
G141 SERIES B-VENT GAS APPLIANCE
2. ELECTRONIC IGNITION
A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do
not try to light the burner by hand.
B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas
is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS:
 Do not try to light any appliance.
 Do not touch any electric switch; do not use any phone in your building.
 Immediately call your gas supplier from a neighbors phone. Follow the suppliers instructions.
 If you cannot reach your gas supplier call the fire department.
C. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect
the appliance and to replace any part of the control system and any gas control which as been under water.
WARNING! If you do not follow these instructions exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
FOR YOUR SAFETY READ BEFORE OPERATING
ELECTRONIC IGNITION LIGHTING INSTRUCTIONS
TO TURN OFF THE GAS TO THE APPLIANCE
1. Turn off the wall switch.
2. Remove/open access panel.
3. Turn gas line to CLOSED position. Do not force.
4. Replace/close control access panel.
1. Turn wall switch to the OFF position.
2. This appliance is equipped with an ignition device which automatically lights the burner. Do not try to light the burner
by hand.
3. Wait five minutes to clear out any gas. If you then smell gas STOP! Follow B in the safety information above on this
label. If you do not smell gas go on to the next step.
4. To turn on the burner turn on all electric power to this appliance.
5. If the appliance will not operate follow the instructions TO TURN OFF THE GAS TO THE APPLIANCE and call your
service technician or gas supplier.

32921 Rev A 20 10-00
G141 SERIES B-VENT GAS APPLIANCE
K. SEASONAL CHECKLIST
WARNING!
Children and adults should be alerted to the hazards of high surface temperatures and
should stay away to avoid burns or clothing ignition. Young children should be carefully
supervised when they are in the same room as the appliance.
CAUTION:
Clothing or other flammable material should
not be placed on or near the appliance.
Before operating this appliance, please review the safety
precautions given on page 2 as well as the items listed
below:
1. Check to make sure the rock wool, lava rock, and
vermiculite have all been placed correctly. (Refer to
items 2, 3 and 4 on page 16.)
2. Check to see that all wiring is correct and enclosed
to prevent possible shock. his is done by removing
the access panel (follow Step 1 below) to access
the control area.
3. Check to ensure there are no gas leaks. his may
be done with a soap and water solution.
4. Verify that all venting and caps are unobstructed.
5. Read and understand these instructions thoroughly
before attempting to operate this appliance.
6. Check the air shutter adjustment. Natural gas
fireplaces will be 1/16 open. Propane fireplaces
will be fully opened.
Figure 27 Access Panel Removal
1. STANDING PILOT OPERATION.
a. Access Panel Removal. o remove the
access panel, lift upward, remove and set aside,
as shown in Figure 27.
b. Initial and easonal Lighting Procedure.
Initial lighting constitutes the first time the
appliance has been lit after installation.
Seasonal lighting refers to lighting the appliance
after it has been unused and the gas valve has
been turned to OFF.
Be sure the manual ON/OFF knob and the gas
valve knob (both located under the access
panel) have been turned to the OFF position.
You fireplace may have a rocker ON/OFF switch
installed; if so, this also needs to be turned to
the OFF position. Allow the appliance to sit for
five minutes so any gas that may have
accumulated in the main burner compartment
escapes.
urn the manual on/off valve to ON. urn the
gas knob to PILO , and press in. While holding
it in, light the pilot by pressing the red ignitor
button, shown in Figure 24, several times until
the pilot ignites. Continue to hold in the gas
knob for about one minute after the pilot is lit.
Release the gas knob. he pilot should remain
lit. If it goes out, turn everything to the OFF
position, let it sit for five minutes and repeat
this step again.
When the pilot remains lit, turn the gas knob
to the ON position. You may now turn the
remote wall switch to the ON position which
will turn on the main burner. Initially, the flames
may resemble more of a blue color but after
the first 20 minutes of operation, they will
become more yellow.
IF YOU OWN AN ELECTRONIC IGNITION
APPLIANCE, AT THIS POINT SKIP
SECTION 1 BELOW AND CONTINUE
WITH SECTION 2 ON PAGE 21.