Desa LMFP33NR(A) Quick start guide

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For more information, visit www.desatech.com
WARNING: If the information in this manual is not fol-
lowed exactly, a fire or explosion may result causing
property damage, personal injury, 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 neigh-
bor’s phone. Follow the gas supplier’s instruc-
tions.
• If you cannot reach your gas supplier, call the fire
department.
— Installation and service must be performed by a quali-
fied installer, service agency, or the gas supplier.
UNVENTED (VENT-FREE) GAS FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
LMFP33NR(A) AND LMFP33PR(A) REMOTE CONTROL
GAS FIREPLACE SYSTEMS
Shown with optional cabinet mantel and hearth base accessories.
Patent Pending

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2
WARNING: Improper installation, adjustment, altera-
tion, service, or maintenance can cause injury or prop-
erty damage. Refer to this manual for correct installation
and operational procedures. For assistance or addi-
tional information consult a qualified installer, service
agency, or the gas supplier.
WARNING: This is an unvented gas-fired heater. It uses
air (oxygen) from the room in which it is installed. Provi-
sions for adequate combustion and ventilation air must
be provided. Refer to Air for Combustion and Ventilation
section on page 5 of this manual.
This appliance may be installed in an aftermarket,* per-
manently located, manufactured (mobile) home, where
not prohibited by local codes.
This appliance is only for use with the type of gas indi-
cated on the rating plate. This appliance is not convert-
ible for use with other gases.
* Afterm arket: Completion of sale, not for purpose of resale, from the manufacturer
TABLE OF CONTENTS
Safety Information ............................................... 3
Product identification ........................................... 4
Local Codes ........................................................ 5
Unpacking ........................................................... 5
Product Features ................................................. 5
Air for Combustion and Ventilation ...................... 5
Installation ........................................................... 8
Operating Heater ............................................... 19
Inspecting Burners ............................................ 22
Cleaning and Maintenance ................................ 23
Troubleshooting ................................................. 25
Specifications .................................................... 29
Wiring Diagram .................................................. 29
Technical Service .............................................. 29
Service Hints ..................................................... 29
Replacement Parts ............................................ 29
Illustrated Parts Breakdown and Parts List ....... 30
Accessories ....................................................... 34
Warranty Information ...........................Back Cover

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111604-01H 3
SAFETY INFORMATION
WARNING: This product con-
tains and/or generates chemicals
known to the State of California
to cause cancer or birth defects,
or other reproductive harm.
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, op-
erate, or service this heater.
Improper use of this heater can
cause serious injury or death
from burns, fire, explosion,
electrical shock, and carbon
monoxide poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs of carbon
monoxide poisoning resemble the flu, with head-
aches, dizziness, or nausea. If you have these signs,
the heater may not be working properly. Get fresh
air at once! Have heater serviced. Some people
are more affected by carbon monoxide than others.
These include pregnant women, people with heart
or lung disease or anemia, those under the influence
of alcohol, and those at high altitudes.
Natural and Propane/LP Gas: Natural and pro-
pane/LP gases are odorless. An odor-making agent
is added to the gas. The odor helps you detect a gas
leak. However, the odor added to the gas can fade.
Gas may be present even though no odor exists.
Make certain you read and understand all warn-
ings. Keep this manual for reference. It is your
guide to safe and proper operation of this heater.
WARNING: Any change to
this heater or its controls can
be dangerous.
WARNING: Do not allow fans
to blow directly into the fireplace.
Avoid any drafts that alter burner
flame patterns. Ceiling fans can
create drafts that alter burner
flame patterns. Altered burner
patterns can cause sooting.
WARNING: Do not use a
blower insert, heat exchanger
insert, or other accessory not ap-
proved for use with this heater.
Due to high temperatures, the
appliance should be located out
of traffic and away from furniture
and draperies.
Do not place clothing or other
flammable material on or near
the appliance. Never place any
objects on the heater.
Fireplace and screen become
very hot when running fireplace.
Keep children and adults away
from hot surfaces to avoid burns
or clothing ignition. Fireplace
will remain hot for a time after
shutdown. Allow surfaces to
cool before touching.
Carefully supervise young chil-
dren when they are in the room
with fireplace. When using the
optional hand-held remote ac-
cessory, keep selector switch
in the OFF position to prevent
children from turning on burners
with remote.
You must operate this fireplace
with the fireplace screen and
hood in place. Make sure fire-
place screen and hood are in
place before running heater.
Keep the appliance area clear
and free from combustible ma-
terials, gasoline, and other flam-
mable vapors and liquids.

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4
SAFETY INFORMATION
Continued
1. This appliance is only for use with the type of
gas indicated on the rating plate. This appliance
is not convertible for use with other gases.
2. Do not place propane/LP supply tank(s) in-
side any structure. Locate propane/LP supply
tank(s) outdoors (propane/LP units only).
3. If you smell gas
• shut off gas supply
• 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
neighborʼs phone. Follow the gas supplierʼs
instructions
• if you cannot reach your gas supplier, call
the fire department
4. This fireplace shall not be installed in a bed-
room or bathroom.
5. Do not use this fireplace as a wood-burning
fireplace. Use only the logs provided with the
fireplace.
6. Do not add extra logs or ornaments such as
pine cones, vermiculite, or rock wool. Using
these added items can cause sooting. Do not
add lava rock around base. Rock and debris
could fall into the control area of fireplace.
7. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 23.
8. Before using furniture polish, wax, carpet
cleaner, or similar products, turn heater off.
If heated, the vapors from these products may
create a white powder residue within burner
box or on adjacent walls or furniture.
9. This fireplace needs fresh air ventilation to run
properly. This fireplace has an Oxygen Deple-
tion Sensing (ODS) safety shutoff system. The
ODS shuts down the fireplace if enough fresh
air is not available. See Air for Combustion and
Ventilation, page 5. If fireplace keeps shutting
off, see Troubleshooting, page 25.
10. Do not run fireplace
• where flammable liquids or vapors are used
or stored
• under dusty conditions
11. Do not use this fireplace to cook food or burn
paper or other objects.
12. Do not use fireplace if any part has been exposed
to or under water. Immediately call a qualified
service technician to inspect the fireplace and to
replace any part of the control system and any
gas control which has been under water.
13. Do not operate fireplace if any log is broken.
Do not operate fireplace if a log is chipped
(dime-sized or larger).
14. Turn fireplace off and let cool before servicing.
Only a qualified service person should service
and repair fireplace.
15. Operating fireplace above elevations of 4,500
feet could cause pilot outage.
16. To prevent performance problems in propane/LP
units, do not use propane/LP fuel tanks of less
than 100 lbs. capacity (propane/LP units only).
17. Provide adequate clearances around air open-
PRODUCT
IDENTIFICATION
Figure 2 - Fireplace
(LMFP33PR Shown)
Figure 1 - Log Base Assembly
O
F
F
P
I
L
O
T
O
N
4-Piece
Log Set
Remote
Receiver
Piezo
Ignitor
Remote Control
Control
Knob
Top Louver
Assembly
Firebox
Hood
Bottom Louver
Assembly
Screen
Assembly
Top Outer Casing
Firebox
Support
Blower
Assembly
(Optional)

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111604-01H 5
LOCAL CODES
Install and use fireplace with care. Follow all local
codes. In the absence of local codes, use the lat-
est edition of The National Fuel Gas Code ANSI
Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
Note: Where listed vented decorative logs are
required, thermostat operation is not permitted.
UNPACKING
CAUTION: Do not remove the
data plates attached to the heater
base assembly. The data plates
contain important warranty and
safety information.
1. With utility knife, cut the carton all the way
around above the staples on the bottom tray.
Lift the carton off the heater. Remove packing.
Note: The hood is located in the packing on
the right hand side of the heater front. Lift the
heater off the bottom tray.
2. Locate two screws above top corners of the
fireplace screen. Remove and discard these
screws. Lift fireplace screen up and pull out
to remove.
3. Remove protective packaging applied to logs,
log base assembly, and fireplace.
4. Remove fireplace hood from carton insert.
5. Check all items for any shipping damage. If
damaged, promptly inform dealer where you
bought fireplace.
PRODUCT FEATURES
OPERATION
This vent-free fireplace is clean burning. It requires
no outside venting. There is no heat loss out a
vent or up a chimney. Heat is generated by both
realistic flames. When used without the blower, the
fireplace requires no electricity making it ideal for
emergency backup heat. This heater is designed
for vent-free operation. It has been tested and ap-
proved to ANSI Z21.11.2 standard for unvented
heaters. State and local codes in some areas pro-
hibit the use of vent-free heaters.
SAFETY DEVICE
This fireplace has a pilot with an Oxygen Depletion
Sensing (ODS) safety shutoff system. The ODS/
pilot is a required feature for vent-free room heat-
ers. The ODS/pilot system shuts off the fireplace
if there is not enough fresh air.
PIEZO IGNITION SYSTEM
This fireplace has a piezo ignitor. This system
requires no matches, batteries, or other sources
to light fireplace.
OPTIONAL BLOWER ASSEMBLY
(GA3700 SERIES & GA3700TA
SERIES)
This fireplace accepts an optional blower assembly
(not included). The GA3700TA Series blower
operates thermostatically and features a variable
speed control. The GA3700 Series blower operates
manually and also features a variable speed control.
The blower circulates heated air from the fireplace
into the room. See Accessories, page 34 .
AIR FOR COMBUSTION
AND VENTILATION
WARNING: This heater shall
not be installed in a confined
space or unusually tight construc-
tion unless provisions are provid-
ed for adequate combustion and
ventilation air. Read the following
instructions to insure proper fresh
air for this and other fuel-burning
appliances in your home.
Todayʼs homes are built more energy efficient
than ever. New materials, increased insulation, and
new construction methods help reduce heat loss
in homes. Home owners weather strip and caulk
around windows and doors to keep the cold air out
and the warm air in. During heating months, home
owners want their homes as airtight as possible.
While it is good to make your home energy effi-
cient, your home needs to breathe. Fresh air must
enter your home. All fuel-burning appliances need
fresh air for proper combustion and ventilation.
Exhaust fans, fireplaces, clothes dryers, and fuel
burning appliances draw air from the house to
operate. You must provide adequate fresh air for
these appliances. This will insure proper venting
of vented fuel-burning appliances.

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6
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Section 5.3,
Air for Combustion and Ventilation.
All spaces in homes fall into one of the three fol-
lowing ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on pages 5 through 7 will help
you classify your space and provide adequate
ventilation.
Unusually Tight Construction
The air that leaks around doors and windows
may provide enough fresh air for combustion and
ventilation. However, in buildings of unusually
tight construction, you must provide additional
fresh air.
Unusually tight construction is defined as
construction where:
a. walls and ceilings exposed to the out-
side atmosphere have a continuous
water vapor retarder with a rating of one
perm (6 x 10-11 kg per pa-sec-m2) or less
with openings gasketed or sealed and
b. weather stripping has been added on
openable windows and doors and
c. caulking or sealants are applied to
areas such as joints around window
and door frames, between sole plates
and floors, between wall-ceiling joints,
between wall panels, at penetrations for
plumbing, electrical, and gas lines, and
at other openings.
If your home meets all of the three criteria
above, you must provide additional fresh
air. See Ventilation Air From Outdoors,
page 7.
If your home does not meet all of the three
criteria above, proceed to Determining
Fresh-Air Flow For Heater Location.
Confined and Unconfined Space
The National Fuel Gas Code, ANSI Z223.1/NFPA
54 defines a confined space as a space whose vol-
ume is less than 50 cubic feet per 1,000 Btu per hour
(4.8 m3 per kw) of the aggregate input rating of all
appliances installed in that space and an unconfined
space as a space whose volume is not less than 50
cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of
the aggregate input rating of all appliances installed
in that space. Rooms communicating directly with
the space in which the appliances are installed*,
through openings not furnished with doors, are
considered a part of the unconfined space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation grills
between them.
DETERMINING FRESH-AIR FLOW
FOR FIREPLACE LOCATION
Determining if You Have a Confined or
Unconfined Space
Use this work sheet to determine if you have a
confined or unconfined space.
Space: Includes the room in which you will install
fireplace plus any adjoining rooms with doorless pas-
sageways or ventilation grills between the rooms.
1. Determine the volume of the space (length x
width x height).
Length x Width x Height =__________cu. ft.
(volume of space)
Example: Space size 20 ft. (length) x 16 ft.
(width) x 8 ft. (ceiling height) = 2,560 cu. ft.
(volume of space)
If additional ventilation to adjoining room is
supplied with grills or openings, add the volume
of these rooms to the total volume of the space.
2. Multiply the space volume by 20 to determine
the maximum Btu/Hr the space can support.
__________ (volume of space) x 20 = (Maxi-
mum Btu/Hr the space can support)
Example: 2,560 cu. ft. (volume of space) x 20 =
51,200 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in
the space.
Vent-free fireplace __________ Btu/Hr
Gas water heater* __________ Btu/Hr
Gas furnace __________ Btu/Hr
Vented gas heater __________ Btu/Hr
Gas fireplace logs __________ Btu/Hr
Other gas appliances* + ________ Btu/Hr
Total = ________ Btu/Hr
* Do not include direct-vent gas appliances. Di-
rect-vent draws combustion air from the outdoors
and vents to the outdoors.
AIR FOR COMBUSTION
AND VENTILATION
Continued

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111604-01H 7
Example:
Gas water heater __________ Btu/Hr
Vent-free fireplace + ________ Btu/Hr
Total = ________ Btu/Hr
4. Compare the maximum Btu/Hr the space can
support with the actual amount of Btu/Hr used.
__________ Btu/Hr (maximum the space can support)
_________ Btu/Hr (actual amount of Btu/Hr used)
Example: 51,200 Btu/Hr (maximum the space
can support)
73,000 Btu/Hr (actual amount of
Btu/Hr used)
The space in the example is a confined space because
the actual Btu/Hr used is more than the maximum
Btu/Hr the space can support. You must provide ad-
ditional fresh air. Your options are as follows:
A. Rework worksheet, adding the space of an adjoin-
ing room. If the extra space provides an unconfined
space, remove door to adjoining room or add
ventilation grills between rooms. See Ventilation
Air From Inside Building.
B. Vent room directly to the outdoors. See Ventila-
tion Air From Outdoors.
C. Install a lower Btu/Hr fireplace, if lower Btu/Hr
size makes room unconfined.
If the actual Btu/Hr used is less than the maximum
Btu/Hr the space can support, the space is an un-
confined space. You will need no additional fresh
air ventilation.
WARNING: If the area in
which the heater may be oper-
ated is smaller than that defined
as an unconfined space or if the
building is of unusually tight
construction, provide adequate
combustion and ventilation air
by one of the methods described
in the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 Section 5.3
or applicable local codes.
40,000
33,000
73,000
AIR FOR COMBUSTION
AND VENTILATION
Continued
Figure 4 - Ventilation Air from Outdoors
Figure 3 - Ventilation Air from Inside
Building
Outlet
Air
Ventilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills
Into Adjoining
Room,
Option 1
12"
12"
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining un-
confined space. When ventilating to an adjoining
unconfined space, you must provide two perma-
nent openings: one within 12" of the ceiling and
one within 12" of the floor on the wall connecting
the two spaces (see options 1 and 2, Figure 3). You
can also remove door into adjoining room (see
option 3, Figure 3). Follow the National Fuel Gas
Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for
Combustion and Ventilation for required size of
ventilation grills or ducts.
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills
or ducts. You must provide two permanent open-
ings: one within 12" of the ceiling and one within
12"of the floor. Connect these items directly to the
outdoors or spaces open to the outdoors. These
spaces include attics and crawl spaces. Follow the
National Fuel Gas Code, ANSI Z223.1/NFPA 54,
Section 5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
IMPORTANT: Do not provide openings for inlet
or outlet air into attic if attic has a thermostat-
controlled power vent. Heated air entering the attic
will activate the power vent.

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8
INSTALLATION
NOTICE: This heater is intended
for use as supplemental heat.
Use this heater along with your
primary heating system. Do not
install this heater as your pri-
mary heat source. If you have a
central heating system, you may
run system’s circulating blower
while using heater. This will help
circulate the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
WARNING: A qualified ser-
vice person must install fire-
place. Follow all local codes.
WARNING: Never install the
fireplace
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture,
clothing or other flammable
objects are less than 42 inches
from the front, top or sides of
the heater
• in high traffic areas
• in windy or drafty areas
CAUTION: This fireplace cre-
ates warm air currents. These
currents move heat to wall sur-
faces next to fireplace. Installing
fireplace next to vinyl or cloth
wall coverings or operating
heater where impurities (such
as, but not limited to, tobacco
smoke, aromatic candles, clean-
ing fluids, oil or kerosene lamps,
etc.) in the air exist, may discolor
walls or cause odors.
Note: Your fireplace is designed to be used in zero
clearance installations. Wall or framing material
can be placed directly against any exterior surface
on the rear, sides, or top of your fireplace, except
where standoff spacers are integrally attached. If
standoff spacers are attached to your fireplace,
these spacers can be placed directly against wall
or framing materials.
Use the dimensions shown for rough openings to
create the easiest installation. See Built-In Fire-
place Installation, page 11.
IMPORTANT: Vent-free heaters add moisture
to the air. Although this is beneficial, installing
fireplace in rooms without enough ventilation
air may cause mildew to form from too much
moisture. See Air for Combustion and Ventilation,
page 5. IMPORTANT: Make sure the fireplace
is level. If fireplace is not level, log set will not
work properly.
CHECK GAS TYPE
Use the correct gas type (natural or propane/LP)
for your fireplace. If your gas supply is not cor-
rect, do not install fireplace. Call dealer where you
bought fireplace for proper type fireplace.
WARNING: This appliance
is equipped for (natural or pro-
pane/LP) gas. Field conversion
is not permitted.
ELECTRICAL HOOKUP
(Models GA3700 Series and GA3700T
Series Blower Accessories, and GA3555
Internal Duplex Kit)
This fireplace accepts a blower assembly with an
electrical cord. The electrical cord is five feet in
length. You must locate fireplace within reach of
a 120 volt grounded electrical outlet. If not, you
must install an electrical outlet within reach of
fireplace power cord. The GA3555 outlet acces-
sory is used for built-in applications with blower
accessory installed.

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111604-01H 9
MINIMUM CLEARANCE TO
COMBUSTIBLE MATERIALS
Top Left and Bottom
Right Sides and Rear
42" 16" 0"
Figure 5 - Installing Hood to Firebox
Figure 6 - Assembling Brass Trim
Side Brass
Trim
Slot
Mitered
Edge
Slot
Shim
Set Screws
Adjusting
Plate
Trim
Hanging
Screws
Assembled
Brass Trim
Hanging
Notches
on Trim
INSTALLING HOOD
Install hood to top of firebox as shown in Figure 5.
Use 3 Phillips screws provided
Top Brass
Trim
INSTALLATION
Continued
Figure 7 - Attaching Brass Trim to
Fireplace
*
Example
Figure 8 - Minimum Clearance for
Combustible to Wall
*Minimum 16 inches from Side Wall
ASSEMBLING AND ATTACHING
OPTIONAL BRASS TRIM
(Included with Mantel Accessory)
IMPORTANT: If you are recessing the firebox in a wall,
do not attach brass trim at this time. See page 11.
Note: The instructions below show assembling
and attaching brass trim to fireplace.
1.
Remove packaging from three pieces of brass trim.
2.
Locate four brass screws, two adjusting plates with
set screws, and two shims in the hardware packet.
3. Align shim under adjusting plate as shown in
Figure 6.
4. Slide one end of adjusting plate/shim in slot on
mitered edge of top brass trim (see Figure 6).
5. Slide other end of adjusting plate/shim in slot on
mitered edge of side brass trim (see Figure 6).
6. While firmly holding edges of brass trim to-
gether, tighten both set screws on the adjusting
plate with slotted screwdriver.
7. Repeat steps 1 through 6 for other side.
8.
Tighten trim hanging screws (#10 x 6.25 shoulder)
into holes in cabinets. Place the assembled trim
onto fireplace cabinet. Align hanging notches on
trim with hanging screws on side of fireplace (see
Figure 7). Push trim firmly into place, sliding
hanging notches over hanging screws.
INSTALLATION CLEARANCES
WARNING: Maintain the
minimum clearances. If you can,
provide greater clearances from
floor, ceiling, and adjoining wall.
Carefully follow the instructions below. This will
ensure safe installation.
Minimum Clearances For Side Combustible
Material, Side Wall, and Ceiling
A. Clearances from the side of the fireplace
cabinet to any combustible material and wall
should follow diagram in Figure 8.
Example: The face of a mantel, bookshelf,
etc. is made of combustible material and
protrudes 3 1/2" from the wall. This combus-
tible material must be 4" from the side of the
fireplace opening (see Figure 8).
B. Clearances from the top of the fireplace opening
to the ceiling should not be less than 42 inches.

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10
CONVENTIONAL FIREPLACE
INSTALLATION
Conventional installation of this fireplace involves
installing fireplace along with the corner, face, or
cabinet mantel with hearth base accessories against
a wall in your home. Follow the instructions below
to install the fireplace in this manner.
Note: The instructions in this section show instal-
lation using the cabinet mantel and hearth base
accessories. The hearth base accessory shown is
optional for this installation. You can install fire-
place and cabinet mantel directly on the floor.
1. Assemble cabinet mantel, hearth base, and
trim accessories. Assembly instructions are
included with each accessory.
2. When installing blower, install a properly
grounded, 120 volt three-prong electrical out-
let at fireplace location if an outlet is not there.
If possible, locate outlet so cabinet mantel will
cover it when installed (see Figure 9).
3. Install gas piping to fireplace location. This
installation includes an approved flexible gas
line (if allowed by local codes) after the equip-
ment shutoff valve. The flexible gas line must
be the last item installed on the gas piping. See
Installing Gas Piping to Fireplace Location,
page 13.
4. Place hearth base accessory against wall at instal-
lation location. Cut an access hole in hearth top
to run flexible gas line to fireplace (see Figure
9). Make sure to locate access hole so cabinet
mantel will cover it when installed. Note: You
can secure base to floor using wood screws.
Countersink screw heads and putty over.
5. Route flexible gas line through access hole in
hearth base.
6. Center cabinet mantel on hearth base (see Figure
10). Make sure mantel is flush against wall.
7. Break off nailing flanges (see Figure 11) with
hammer or pliers.
INSTALLATION
Continued
8. Place cardboard or other protective material
on top of hearth base. Carefully set fireplace
on protective material, with back of fireplace
inside mantel opening.
9. Attach flexible gas line from fireplace gas
regulator to gas supply. See Connecting
Fireplace to Gas Supply, page 15.
10. If blower is installed, route blower electrical cord
through access holes in either side of fireplace.
Note: Bushing may be moved if necessary. Plug
electrical cord into electrical outlet.
11. Carefully insert fireplace into cabinet mantel.
Be careful not to scratch or damage hearth base,
cabinet mantel, or any laminate trim on hearth
base. Remove protective material from top of
hearth base and from front of fireplace (if any).
Note: You can secure fireplace to hearth or
floor. Open lower louver. Locate screw holes in
bottom of base. Tighten wood screws through
these holes and into hearth or floor.
12. Check all gas connections for leaks. See
Checking Gas Connections, page 16.
Figure 10 - Installing Cabinet Mantel
Cabinet
Mantel
Figure 11 - Location of Nailing Flanges
Nailing
Flanges
Electrical Outlet
Rigid Gas Line
Gas Line
Access
Hole
Figure 9 - Placing Hearth Base
Accessory Against Wall
Hearth
Base

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111604-01H 11
Figure 12 - Inserting Fireplace Into
Cabinet Mantel
INSTALLATION
Continued
ACTUAL FRAMING
Height 32 3/8" 33"
Front Width 34 5/16" 35 1/8"
Depth 16 11/16" 17 3/4"
BUILT-IN FIREPLACE
INSTALLATION
Built-in installation of this fireplace involves
installing fireplace into a framed-in enclosure.
This makes the front of fireplace flush with wall.
If installing a mantel above the fireplace, you must
follow the clearances shown in Figure 18, page 13.
Follow the instructions below to install the fireplace
in this manner.
WARNING: A qualified electri-
cian must connect electrical wiring
to duplex outlet for built-in instal-
lation. Follow all local codes.
1. Frame in rough opening. Use dimensions shown
in Figure 13 for the rough opening. If installing
in a corner, use dimensions shown in Figure 14
for the rough opening. The height is 33" which
is the same as the wall opening above.
2. If using blower, install duplex outlet to the
right support bracket in the bottom of firebox
(see Figure 15). See Accessories, page 34. If
not using blower, go to step 7.
3. Route wires from electrical box through
smallest hole in outer casing using strain relief
fitting provided (see Figure 15).
4. Connect wires from the electrical box to
duplex outlet. Match wire colors to those
indicated on duplex outlet. Be sure to connect
ground wire.
5. Install shield to end of right support bracket
and behind the firebox wrapper with 2 screws
provided (see Figure 16, page 12).
6. Plug blower cord into duplex outlet.
7. Replace bottom of firebox and reconnect
remote receiver module to valve.
35 1/8"
17 3/4"
33"
Figure 13 - Rough Opening for Installing
in Wall
39 3/8"
27 7/8"
55 5/8"
35 1/8"
Figure 14 - Rough Opening for Installing
in Corner
Blower
Support
Bracket
Cable from
Electrical Source
Duplex
Outlet
Screw
Blower
Power Cord
Strain
Relief
Fitting
Figure 15 - Connecting Duplex Outlet

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12
Mantel Clearances for Built-In
Installation
If placing mantel above built-in fireplace, you must
meet minimum clearance between mantel shelf and
top of fireplace opening.
NOTICE: If your installation does
not meet the minimum clear-
ances shown, you must do one
of the following:
• raise the mantel to an accept-
able height
• remove the mantel
NOTICE: Surface temperatures
of adjacent walls and mantels
become hot during operation.
Walls and mantels above the
firebox may become hot to
the touch. If installed properly,
these temperatures meet the
requirement of the national
product standard. Follow all
minimum clearances shown in
this manual.
8. Install gas piping to fireplace location. This
installation includes an approved flexible gas
line (if allowed by local codes) after the equip-
ment shutoff valve. The flexible gas line must
be the last item installed on the gas piping. See
Installing Gas Piping to Fireplace Location,
page 13.
9. Carefully set fireplace in front of rough opening
with back of fireplace inside wall opening.
10. Attach flexible gas line to gas supply. See Con-
necting Fireplace to Gas Supply, page 15.
11. Plug electrical cord into electrical outlet
installed in step 2 if using blower.
12. Carefully insert fireplace into rough opening.
13. Attach fireplace to wall studs using nails or
wood screws through holes in nailing flange
(see Figure 17).
14. Check all gas connections for leaks. See
Checking Gas Connections, page 16.
15. Install brass trim after final finishing and/or
painting of wall (see Figure 7, page 9).
Figure 17 - Attaching Fireplace to Wall
Studs
Nailing Flanges
Nails or Wood
Screws
Shield
Screws
Support Bracket
Firebox
Wrapper
Power Cord
Figure 16 - Installing Shield to Support
Bracket
INSTALLATION
Continued

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111604-01H 13
Figure 18 - Minimum Mantel Clearances for Built-In Installation
Supplied
Firebox
Hood
Must Be
Used at
All Times
Wire-mesh
Screen
Firebox
Noncombustible
Material May
Project Off this
Surface above
the Firebox
Hood
Mantel Shelf
13"
16" 19"
21"
2
1/2"
6"
8"
10"
Note: All vertical
measurements are
from top of fireplace
hood opening to
bottom of mantel
shelf. These minimum
clearances replace any
other recommended
clearances supplied
with your ANSI Z21.11.2
approved gas logs.
Wall board or facing
material (above
firebox) may be of
combustible material,
including decorative
mantel ornaments or
other similar projec-
tions off of the facing
material. Framing
Material
INSTALLATION
Continued
INSTALLING GAS PIPING TO
FIREPLACE LOCATION
WARNING: This appliance
requires a 1/2" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.
WARNING: A qualified service
person must connect fireplace
to gas supply. Follow all local
codes.
CAUTION: Never connect pro-
pane/LP fireplace directly to the
propane/LP supply. This fireplace
requires an external regulator
(not supplied). Install the external
regulator between the fireplace
and propane/LP supply.
WARNING: Never connect
natural gas fireplace to private
(non-utility) gas wells. This
gas is commonly known as
wellhead gas.
Installation Items Needed
Before installing fireplace, make sure you have
the items listed below.
• external regulator for propane/LP unit only
(supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap (optional)
• tee joint
• pipe wrench
• approved flexible gas line with gas connector
(if allowed by local codes) (not provided)
* A CSA design-certified equipment shutoff valve
with 1/8" NPT tap is an acceptable alternative to
test gauge connection. Purchase the optional CSA
design-certified equipment shutoff valve from your
dealer. See Accessories, page 34.

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14
For propane/LP units, the installer must supply
an external regulator. The external regulator will
reduce incoming gas pressure. You must reduce
incoming gas pressure to between 11 and 14 inches
of water. If you do not reduce incoming gas pres-
sure, heater regulator damage could occur. Install
external regulator with the vent pointing down
as shown in Figure 19. Pointing the vent down
protects it from freezing rain or sleet.
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-tinned copper tubing may
be used in certain areas. Check
your local codes. Use pipe of
1/2" diameter or greater to allow
proper gas volume to fireplace.
If pipe is too small, undue loss
of volume will occur.
Installation must include an equipment shutoff valve,
union, and plugged 1/8" NPT tap. Locate NPT tap
within reach for test gauge hook up. NPT tap must
be upstream from fireplace (see Figure 20).
IMPORTANT: Install equipment shutoff valve
in an accessible location. The equipment shutoff
valve is for turning on or shutting off the gas to
the appliance.
Check your building codes for any special re-
quirements for locating equipment shutoff valve
to fireplaces.
Apply pipe joint sealant lightly to male NPT threads.
This will prevent excess sealant from going into
pipe. Excess sealant in pipe could result in clogged
fireplace valves. Never use sealant on flare threads.
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
We recommend that you install a sediment trap in
supply line as shown in Figure 20. Locate sediment
trap where it is within reach for cleaning. Install in
piping system between fuel supply and fireplace.
Locate sediment trap where trapped matter is not
likely to freeze. A sediment trap traps moisture and
contaminants. This keeps them from going into fire-
place gas controls. If sediment trap is not installed or
is installed wrong, fireplace may not run properly.
INSTALLATION
Continued
Figure 19 - External Regulator on
Propane/LP Supply Tank with Vent
Pointing Down
External
Regulator
Vent Pointing Down
Propane/LP
Supply Tank
Figure 20 - Gas Connection
* Purchase the optional CSA design-certified
equipment shutoff valve from your dealer. See
Accessories, page 34.
** Minimum inlet pressure for purpose of input
adjustment.
Sediment Trap
3" Minimum
Cap Pipe Tee
Nipple Joint
CSA Design-Certified Equipment Shutoff
Valve With 1/8" NPT Tap*
Natural Gas
From Gas Meter
(5" W.C.** to
10.5" W.C.
Pressure)
Propane/LP
From External
Regulator
(11" W.C.**
to 14" W.C.
Pressure)

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111604-01H 15
CONNECTING FIREPLACE TO GAS
SUPPLY
Installation Items Needed
• 5/16" hex socket wrench or nut-driver
• Phillips screwdriver
• sealant (resistant to propane/LP gas, not provided)
1. Remove two screws that hold fireplace screen
in place for shipping. These screws are located
near top of screen. Discard screws. Lift fire-
place screen up and pull out to remove.
2. Open lower louver door. Carefully pull straight
out on the wire harnesses attached to right
side and front of remote receiver module (see
Figure 21).
3. Remove screws that attach log base assembly
to fireplace (see Figure 21). Carefully lift up
log base assembly and remove from fireplace
(see Figure 21).
Note: If adding the G8000A series brick liner
accessory, install it now. Follow instructions in
G8000A accessory kit.
CAUTION: Do not pick up
log base assembly by burner.
This could damage burner. Only
handle base by grates.
4. Route gas line (provided by installer) from
equipment shutoff valve to fireplace. Route
flexible gas supply line through one of the
access holes.
NOTICE: Most building codes
do not permit concealed gas
connections. A flexible gas line
is provided to allow accessibility
from the fireplace (see Figure 22).
The flexible gas supply line con-
nection to the equipment shutoff
valve should be accessible.
5. Attach the flexible gas line to gas supply (see
Figure 22). Check tightness of flexible gas
line attached to gas regulator of fireplace (see
Figure 22).
6. Check all gas connections for leaks. See
Checking Gas Connections, page 16.
INSTALLATION
Continued
7. Replace log base assembly back into fireplace.
Feed flexible gas line into fireplace base area
while replacing log base assembly. Make sure
the entire flexible gas line is in fireplace base
area. Reattach log base assembly to fireplace
with screws removed in step 2.
Figure 21 - Removing Log Base
Assembly From Fireplace
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Figure 22 - Attaching Flexible Gas Lines
Together
Flexible Gas Line from
Fireplace Gas Regulator
To Fireplace Gas
Regulator Equipment Shutoff
Valve Provided by
Installer
Unplug From
Remote Receiver
Module
Log Base
Assembly
Screw
Screw
Propane/LP
To External Regulator
Natural Gas
To Gas Meter
Remote
Receiver
Module
Flexible Gas
Line

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16
CHECKING GAS CONNECTIONS
WARNING: Test all gas pip-
ing and connections, internal
and external tonit, for leaks after
installing or servicing. Correct
all leaks at once.
WARNING: Never use an
open flame to check for a leak.
Apply a noncorrosive leak detec-
tion fluid to all joints. Bubbles
forming show a leak. Correct all
leaks at once.
CAUTION: Make sure exter-
nal regulator has been installed
between propane/LP supply and
fireplace. See guidelines under
Connecting Fireplace to Gas
Supply, page 15.
PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect fireplace with its appliance main
gas valve (control valve) and equipment
shutoff valve from gas supply piping system.
Pressures in excess of 1/2 psig will damage
fireplace regulator.
2. Cap off open end of gas pipe where equipment
shutoff valve was connected.
3. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas or opening main gas valve
located on or near gas meter for natural gas,
or using compressed air.
4. Check all joints of gas supply piping system.
Apply noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect fireplace and equipment shutoff
valve to gas supply. Check reconnected fittings
for leaks.
INSTALLATION
Continued
Test Pressures Equal To or Less Than 1/2
PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 23).
2. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas or opening main gas valve
located on or near gas meter for natural gas,
or using compressed air.
3. Check all joints from gas meter to equipment
shutoff valve for natural gas or propane/LP
supply to equipment shutoff valve for propane/
LP (see Figures 24 or 25). Apply noncorrosive
leak detection fluid to all joints. Bubbles form-
ing show a leak.
4. Correct all leaks at once.
Figure 23 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff
Valve
Figure 25 - Checking Gas Joints for
Propane/LP Gas
Gas Control Valve
Figure 24 - Checking Gas Joints for
Natural Gas
Equipment
Shutoff
Valve
Gas Meter
Equipment Shutoff Valve
Gas Control Valve
Propane/LP
Supply Tank

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111604-01H 17
INSTALLATION
Continued
Figure 26 - Installing Rear and Middle
Logs
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Middle
Log (#1)
Rear Log
(#1)
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Front Log (#3)
Figure 27 - Installing Front Log
Pressure Testing Fireplace Gas
Connections
1. Open equipment shutoff valve (see Figure 23,
page 16).
2. Open main gas valve located on or near gas
meter for natural gas or open propane/LP
supply tank valve.
3. Make sure control knob of fireplace is in the
OFF position.
4. Check all joints from equipment shutoff valve
to gas control valve (see Figures 24 or 25, page
16). Apply noncorrosive leak detection fluid
to all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light fireplace (see Operating Fireplace, page
19.) Check all other internal joints for leaks.
7. Turn off fireplace (see To Turn Off Gas to
Appliance, page 21).
INSTALLING LOGS
CAUTION: Do not remove the
data plates attached to the heater
base assembly. The data plates
contain important warranty and
safety information.
WARNING: Failure to position
the parts in accordance with these
diagrams or failure to use only
parts specifically approved with
this heater may result in property
damage or personal injury.
WARNING: After installa-
tion and periodically thereafter,
check to ensure that no flame
comes in contact with any log.
With the heater set to High, check
to see if flame contact any log. If
so, reposition logs according to
the log installation instructions
in this manual. Flames contact-
ing logs will create soot.
Each log is marked with a number. These numbers
will help you identify the log when installing. It
is very important to install these logs exactly as
instructed. Do not modify logs. Only use logs
supplied with heater.
Models LMFP33PR and LMFP33NR
1. Place pins in rear log (#1) into holes on rear
of base grate as shown in Figure 26.
2. Place middle log (#2) between front and rear
of burner. The left side will rest on the left tab
and the right will straddle the burner as shown
in Figure 26.
3. Place front log (#3) onto grate fingers at front
of base grate (see Figure 27). Make sure log
seats well into grate.
4. Place left top log on left pins on logs #2 and #3,
resting it on log #1( see Figure 28, page 18).
5. Place right to log on right pins on logs #2 and
#3 (see Figure 28, page 18).

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18
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Models LMFP33PRA and LMFP33NRA
1. Place the base of the middle log (#1) in the
U-shaped slots of the grate base. The cutout
on the right of the middle log should fit over
the burner (see Figure 29). Make sure the front
of the middle log is resting on the tabs of the
grate base and the cutout area is centered over
the burner “U” bend.
2. Locate pegs on the bottom of back log (#2).
Slide these pegs into the holes in the grate base
behind the burner (see Figure 30).
3. Locate the notches in the bottom of the front
log (#3). Place the front log on the grate fin-
gers. Make sure the notches of the front log
line up with the grate fingers (see Figure 31).
4. Place crossover log (#4) onto the pin (right) on
back log (#2) and into the recess of the middle
log (#1) (see Figure 32).
INSTALLATION
Continued
Left Top Log (#4)
Figure 28 - Installing Top Logs
Right Top
Log (#4)
Middle
Log (#1)
Tab
Burner “U” Bend
U-Shaped
Slot
Figure 29 - Installing Back Log (#2)
(Base may very from illustration)
WARNING: You must operate
this fireplace with the fireplace
screen in place. Make sure fire-
place screen is in place before
running fireplace.
Figure 30 - Installing Back Log (#2)
(Base may very from illustration)
Hole in
Grate
Base
Back Log (#2)
Peg
Burner
Figure 32 - Installing Crossover Log (#4)
(Base may very from illustration)
Notches
Grate Finger
Figure 31 - Installing Front Log (#3)
(Base may very from illustration)
Crossover
Log (#4)
Recess
Peg
Middle
Log (#1)

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111604-01H 19
Figure 33 - Installing Batteries in
Receiver
Cover
Receiver
Slot
4 AA Batteries
Battery
Housing
Backup Switch
INSTALLING BATTERIES FOR
REMOTE RECEIVER AND HAND
HELD REMOTE CONTROL
Four AA batteries and three AAA batteries are
required to operate this heater with the wireless
hand-held remote control set. Four AA batteries
must be installed in the receiver and three AAA
batteries in the hand-held remote control unit.
Note: Only use alkaline batteries.
Installing Batteries in Receiver
1. Locate slot on battery cover of receiver (see
Figure 33). Firmly insert tool such as a small
screwdriver, butter knife, or dime into the slot
and lift up to remove cover.
2. Insert 4 AA batterines into receiver. Posi-
tive and negative are marked inside receiver
casing. Note: Receiver will not function if
batteries are not installed correctly.
3. Slide tab on cover into receiver housing and
snap cover back into place.
INSTALLATION
Continued
Cover
Remote
Control
3 AAA Batteries
Installing Battery into Remote
1. Remove remote cover (see Figure 34).
2.
Insert 3 AAA batteries into remote control (see Fig-
ure 34). Positive and negative are marked inside
remote control casing. Note: Remote will not
function if batteries are not installed correctly.
3. Slide remote cover back into place.
OPERATING HEATER
FOR YOUR SAFETY
READ BEFORE LIGHTING
WARNING: If you do not fol-
low these instructions exactly,
a fire or explosion may result
causing property damage, per-
sonal injury or loss of life.
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 neighborʼs phone. Follow the gas
supplierʼs instructions.
• If you cannot reach your gas supplier, call
the fire department.
C. Use only your hand to push in or turn the
gas control knob. Never use tools. If the
knob will not push in or turn by hand, donʼt
try to repair it, call a qualified service tech-
nician or gas supplier. 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 ser-
vice technician to inspect the appliance and to
replace any part of the control system and any
gas control which has been under water.
Figure 34 - Installing Batteries in Remote
Control

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20
1. STOP! Read the safety information on
page 19.
2. Make sure equipment shutoff valve is
fully open.
3. Set remote selector switch in the AUTO
position (see Figure 35).
4. Press in and turn control knob clockwise
to the OFF position (see Figure 35).
5. Wait five (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 on page 19. If you donʼt
smell gas, go to the next step.
6. Press in and turn control knob counter-
clockwise to the PILOT position.
Press in control knob for five (5) seconds
(see Figure 35).
Note: You may be running this heater for
the first time after hooking up to gas sup-
ply. If so, the control knob may need to be
pressed in for 30 seconds or more. This will
allow air to bleed from the gas system.
7. With control knob pressed in, press and
release ignitor button. This will light pilot.
The pilot is attached to the rear of the front
burner. If needed, keep pressing ignitor
button until pilot lights.
Note: If pilot does not stay lit, contact a
qualified service person or gas supplier for
repairs. Until repairs are made, light pilot
with match. To light pilot with match, see
Manual Lighting Procedure, page 21
8. Keep control knob pressed in for 30 seconds
after lighting pilot. After 30 seconds, release
control knob.
• If control knob does not pop out when
released, contact a qualified service person
or gas supplier for repairs.
Note: If pilot goes out, repeat steps 4
through 8.
LIGHTING
INSTRUCTIONS
WARNING
• If fireplace has glass doors,
never operate this heater with
glass doors closed. If you op-
erate heater with doors closed,
heat buildup inside fireplace
will cause glass to burst. Make
sure there are no obstructions
across opening of fireplace.
• You must operate this heater
with a fireplace screen in place.
Make sure fireplace screen is
closed before running heater.
NOTICE: During initial operation
of new heater, burning logs will
give off a paper-burning smell.
Orange flame will also be pres-
ent. Open damper or window to
vent smell. This will only last a
few hours.
Note: Home owners generally prefer to operate
their heater with the chimney damper closed.
This will put all the heat into the room. How-
ever, there may be times you will desire the
full flames of the highest heat setting but will
find the heat output excessive. You can open
the chimney damper (if you have one) fully or
partially to release some of the heat.
WARNING: Damper handle
will be hot if heater has been
running.
WARNING: Burners will
come on automatically within
one minute when the control
valve is in the ON position after
the pilot is lit.
OPERATING HEATER
Continued
AUTO MAN
Control Knob
Ignitor
Button
Figure 35 - Remote Selector Switch,
Control Knob and Ignitor Button
Remote
Selector
Switch