This appliance may be installed in an aftermarket* manufactured (mobile) home,
where not prohibited by state or local codes.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
OWNER’S OPERATION AND INSTALLATION MANUAL
GFP28MNG
AND
GFP28TNG
Shown with optional
®
cabinet mantel and
hearth base.
WARNING: If the information in this manual is not
followed 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
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.
Save this manual for future reference.
WARNING: Improper installation,
adjustment, alteration, service,
or maintenance can cause injury
or property damage. Refer to this
manual for correct installation
and operational procedures. For
assistance or additional 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. Provisions for adequate
combustion and ventilation air
must be provided. Refer to
Warranty Information .............................................................................. Back Cover
SAFETY
INFORMATION
2
W ARNINGS
WARNING ICON G 001
IMPORTANT: Read this owner’s manual carefully and completely before
trying to assemble, operate, or service this fireplace. Improper use of this
fireplace can cause serious injury or death from burns, fire, explosion,
electrical shock, and carbon monoxide poisoning.
DANGER
WARNING ICON G 001
Carbon monoxide poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble
the flu, with headaches, dizziness, or nausea. If you have these signs, the fireplace may
not be working properly. Get fresh air at once! Have fireplace 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 Gas: Natural gas is 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 Warnings. Keep this manual for reference. It
is your guide to safe and proper operation of this fireplace.
Safety Information continues on next page
103090
SAFETY
INFORMATION
Continued
W ARNINGS
WARNING: Any change to this fireplace or its controls can be dangerous.
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. 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 neighbor’s phone. Follow the gas
supplier’s instructions
• if you cannot reach your gas supplier, call the fire department
3. This fireplace shall not be installed in a bedroom or bathroom.
4. Never install the fireplace
• in a recreational vehicle
• where curtains, furniture, clothing, or other flammable objects are less than 36
inches from the front, top, or sides of the fireplace
• in high traffic areas
• in windy or drafty areas
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. You must operate this fireplace with the fireplace screen in place. Make sure fireplace
screen is in place before running fireplace.
8. This fireplace is designed to be smokeless. If logs ever appear to smoke, turn off
fireplace and call a qualified service person.
smoking could occur due to log curing and fireplace burning manufacturing residues.
9. 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.
10. Do not use a blower insert, heat exchanger insert or other accessory not approved for
use with this heater.
11. This fireplace needs fresh air ventilation to run properly. This fireplace has an oxygen
depletion sensor (ODS) pilot light safety system. The ODS shuts down the fireplace if
not enough fresh air is available. See Air for Combustion and Ventilation, pages 6
through 8. If fireplace keeps shutting off, see Troubleshooting, pages 28 through 31.
12. Do not run fireplace
• where flammable liquids or vapors are used or stored
• under dusty conditions
13. Do not use this fireplace to cook food or burn paper or other objects.
14. Never place any objects in the fireplace or on logs.
15. Fireplace front and screen becomes 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 shut-down. Allow surfaces to cool before touching.
16. Carefully supervise young children when they are in the room with fireplace.
17. 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.
18. Do not operate fireplace if any log is broken. Do not operate fireplace if a log is
chipped (dime-sized or larger).
19. Turn fireplace off and let cool before servicing. Only a qualified service person should
service and repair fireplace.
20. Operating fireplace above elevations of 4,500 feet could cause pilot outage.
Continued
Note:
During initial operation, slight
103090
3
PRODUCT
IDENTIFICATION
Front
Burner
Front Log (#1)
Rear Log (#2)
Left Front
Branch
(#4)
Base
Right Front
Branch
(#5)
Top Louvered
Hood
Rear Burner
Gas
Regulator
Figure 1 - Log Base Assembly
Top Outer
Casing
Firebox
Support
Rear
Access
Door
Screen
Assembly
Bottom Louver
Assembly
4
Figure 2 - Fireplace
Side
Access
Door
103090
LOCAL CODES
Install and use fireplace with care. Follow all local codes. In the absence of local
codes, use the latest edition of The National Fuel Gas Code ANSI Z223, also
known as 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
UNPACKING
PRODUCT
FEATURES
1. Place the carton containing the fireplace unit on its back. Hold fireplace and
pull the carton and pallet away. Remove trim kit from front of fireplace.
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. Check all items for any shipping damage. If damaged, promptly inform dealer
where you bought fireplace.
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 and
glowing embers. When used without the blower, the fireplace requires no electricity
making it ideal for emergency back-up heat.
Safety Features
This fireplace has a pilot with an Oxygen Depletion Sensor Shutoff System
(ODS). The ODS/pilot is a required feature for vent-free room heaters. The ODS
system protects against oxygen depletion and any interruption in the fuel supply. If
either occurs, the ODS shuts off gas flow to the burner, turning the fireplace off.
An internal regulator controls fluctuations in your gas pressure.
Piezo Ignition System
This fireplace has a piezo ignitor. This system requires no matches, batteries, or
other sources to light fireplace.
103090
Thermostat Control (GFP28TNG)
These fireplaces have a thermostat sensing bulb and a control valve. The thermostat controls the heat output and flame height. This maintains a consistent room
temperature. Even the lowest setting provides realistic flames and glowing embers
from two burners. Selecting higher comfort settings allows the fireplace to run
longer, producing greater heat output. At lower comfort settings, the fireplace will
run less. This results in increased heating comfort. This can also result in lower
gas bills.
Blower Assembly (GFP28TNG)
This fireplace has a blower assembly. The blower operates thermostatically. The
blower circulates heated air from the fireplace into the room. Use of blower is
optional.
Variable Manual Control (GFP28MNG)
These fireplaces have a variable manual control valve which allows the user to
choose the heat setting that best suits his needs. Any setting between low and high
may be selected by simply turning the control knob.
5
AIR FOR
W ARNING
COMBUSTION
AND
VENTILATION
This heater shall not be installed in a confined space unless provisions are provided 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.
Today’s 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 efficient, 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.
PROVIDING ADEQUATE VENTILATION
The following is exerpts from National Fuel Gas Code. NFPA 54/ANSI Z223.1,
Section 5.3, Air for Combustion and Ventilation.
All spaces in homes fall into one of the three following ventilation classifications:
1. Unusually Tight Contruction; 2. Unconfined Space; 3. Confined Space.
The information on pages 6 through 8 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 outside atmosphere have a continu-
ous water vapor retarder with a rating of one perm or less with open-
ings gasketed or sealed
b. weather stripping has been added on openable windows and doors
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
If your home does not meet all of the three criteria above, proceed to page 6.
Ventilation Air From Outdoors
and
, page 7
and
.
Unconfined Space
The National Fuel Gas Code, ANSIZ223.1, 1992, Section 5.3 defines uncon-
fined space as having a minimum air volume of 50 cubic feet (127 cubic cm) for
each 1000 Btu/Hr input rating of all appliances in the space (cubic feet equals
length x width x height of space). Include adjoining rooms only if there are
doorless passageways or ventilation grills between the rooms.
Confined Space
The National Fuel Gas Code, ANSIZ223.1, 1992, Section 5.3 defines confined
space as having an air volume of less than 50 cubic feet (127 cubic cm) for each
1000 Btu/Hr input rating of all appliances in the space (cubic feet equals length
x width x height of space). Include adjoining rooms only if there are doorless
6
passageways or ventilation grills between the rooms.
103090
AIR FOR
COMBUSTION
DETERMINING 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.
AND
VENTILATION
Continued
Space: Includes the room in which you will install fireplace plus any adjoining rooms
with doorless passageways 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:
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. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space
can support.
____________ (volume of space) ÷ 50 cu. ft. = (Maximum Btu/Hr
the space can support)
Example:
3. Add the Btu/Hr of all fuel burning appliances in the space.
Example:
* Do not include direct-vent gas appliances. Direct-vent draws combustion air from the
outdoors and vents to the outdoors.
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:
The space in the above 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 additional fresh air.
Your options are as follows:
A. Rework work sheet, adding the space of an adjoining room. If the extra space pro-
vides an unconfined space, remove door to adjoining room or add ventilation grills
between rooms. See Ventilation Air from Inside Building, page 8.
B. Vent room directly to the outdoors. See Ventilation Air from Outdoors, page 8.
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 unconfined space. You will need no additional fresh air ventilation.
Space size22 ft. (length) x 18 ft. (width) x 8 ft. (ceiling height) =
3168 cu. ft. (volume of space)
3168 cu. ft. (volume of space) ÷ 50 cu. ft. = 63.3 or 63,300 (maximum
Btu/Hr the space can support)
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
Gas water heater40,000Btu/Hr
Vent-free fireplace+28,000Btu/Hr
Total=68,000Btu/Hr
63,300Btu/Hr (maximum the space can support)
68,000Btu/Hr (actual amount of Btu/Hr used)
103090
Continued
7
AIR FOR
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills
Into Adjoining
Room,
Option 1
12"
12"
COMBUSTION
AND
VENTILATION
Continued
WARNING
If the area in which the heater may be operated is smaller than
that defined as an unconfined space, provide adequate combustion and ventilation air by one of the methods described in the
National Fuel Gas Code, ANSI Z223.1, 1992, Section 5.3.
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining unconfined space. When ventilating to an
adjoining unconfined space, you must provide two permanent 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 NFPA 54/ANSI Z223.1, Section 5.3, Air for Combustionand Ventilation for required size of ventilation grills or ducts.
W ARNING
Rework worksheet, adding the space of the adjoining unconfined
space.
appliances in both spaces.
The combined spaces must have enough fresh air to supply all
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent openings: 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.
IMPORTANT:
thermostat-controlled power vent. Heated air entering the attic will activate the power
vent.
8
Figure 3 - Ventilation Air from Inside Building
Do not provide openings for inlet or outlet air into attic if attic has a
Ventilated
Attic
Crawl Space
Ventilated
To Attic
To
Crawl
Space
Outlet
Air
Inlet
Air
Outlet
Air
Inlet Air
Figure 4 - Ventilation Air from Outdoors
103090
INSTALLING
NOTICE
A qualified service person must install fireplace. 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 36 inches from the front, top, or sides
of the fireplace
• in high traffic areas
• in windy or drafty areas
WARNING
The GFP28TNG has a three-prong, grounded electrical plug.
This plug helps protect you against electrical shock. Only connect plug to a properly grounded, three-prong receptacle. Do
not cut or remove the grounding prong from this plug.
CAUTION
This fireplace creates warm air currents. These currents move heat
to wall surfaces next to fireplace. Installing fireplace next to vinyl or
cloth wall coverings or operating fireplace where impurities in the
air (such as tobacco smoke) exist, may discolor walls.
IMPORTANT:
installing fireplace in rooms without enough ventilation air may cause mildew to
form from too much moisture. See Air for Combustion and Ventilation, pages 6
through 8.
IMPORTANT:
not work properly.
CHECK GAS TYPE
Use only natural gas. If your gas supply is not natural gas, do not install fireplace.
Call dealer where you bought fireplace for proper type fireplace.
ELECTRICAL HOOKUP
The GFP28TNG has 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.
Vent-free heaters add moisture to the air. Although this is beneficial,
Make sure the fireplace is level. If fireplace is not level, log set will
103090
Continued
9
INSTALLING
Continued
ASSEMBLING AND ATTACHING BRASS TRIM
Note:
1. Remove packaging from three pieces of brass trim.
2. Locate four brass screws, two adjusting plates with set screws, and two shims
3. Align shim under adjusting plate as shown in Figure 5.
4. Slide one end of adjusting plate/shim in slot on mitered edge of top brass trim
5. Slide other end of adjusting plate/shim in slot on mitered edge of side brass
6. While firmly holding edges of brass trim together, tighten both set screws on
7. Repeat steps 1 through 6 for other side.
The instructions below show assembling and attaching brass trim to fireplace.
Do not yet install trim if performing a built-in installation (see page 14, Built-In Fireplace Installation).
in the hardware packet.
(see Figure 5).
trim (see Figure 5).
the adjusting plate with slotted screwdriver.
Side Brass Trim
Figure 5 - Assembling Brass Trim
Set Screws
Adjusting
Plate
Shim
Slot
Mitered Edge
Slot
Top Brass Trim
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 6). Push trim firmly
into place, sliding hanging notches over hanging screws.
Trim Hanging
Screws
Assembled
Brass Trim
10
Hanging
Notches on
Trim
Figure 6 - Attaching Brass Trim to Fireplace
103090
INSTALLING
INSTALLATION CLEARANCES
Continued
W ARNING
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 Wall and Ceiling Clearances (see Figure 7)
A. Clearances from the side of the fireplace opening to any combustible wall should
not be less than 16 inches for a cabinet mantel or 12 inches for a corner installation.
B. Clearances from the top of the fireplace opening to the ceiling should not be
less than 42 inches.
MINIMUM CLEARANCE
Note: Clearances
are the same if
using optional
cabinet mantel or
built-in installation.
16"
Side Wall - 16 "
42"
Ceiling - 42"
Floor - 0"
Figure 7 - Minimum Clearance to Wall and Ceiling
CONVENTIONAL FIREPLACE INSTALLATION
Conventional installation of this fireplace involves installing fireplace along with
the cabinet mantel and hearth base accessory against a wall in your home. Follow
the instructions below to install the fireplace in this manner.
WARNING
For conventional installation, it is recommended you use the
cabinet mantel or hearth bases specified in this manual. Surface
clearances may not be sufficient with other cabinet mantels and
hearth bases. This may create a fire hazard. See
page 39 for correct mantels and hearth bases.
Note:
The instructions below show installation using the GM28MU cabinet mantel
and the GFP28HBU hearth base accessory. The hearth base accessory shown is
optional for this installation. You can install fireplace and cabinet mantel directly
on the floor.
1. Assemble cabinet mantel and hearth base. Assembly instructions are included
with each accessory.
Accessories,
103090
Continued
11
INSTALLING
Continued
2. Break off nailing flanges (see Figure 8) with hammer or pliers.
3. Place mantel and base in desired location. Place heater in front opening of
mantel. Make sure all pieces fit properly. Remove mantel.
4. Mark floor and base or wall for gas line entrance. Make sure there is enough
clearance between heater and mantel for gas line. IMPORTANT: Make sure
there are no electrical lines where gas piping will go through floor or wall.
5. Cut an access hole in hearth base 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.
Nailing Flanges
Figure 8 - Location of Nailing Flanges
6. Install gas piping to fireplace location. This installation includes an approved
flexible gas line (if allowed by local codes) after the manual shutoff valve. The
flexible gas line must be the last item installed on the gas piping. See InstallingGas Piping to Fireplace Location, page 16.
Hearth Base
Figure 9 - Placing Hearth Base Accessory Against Wall
Flexible Gas Line
Electrical Outlet
Gas Line Access
Hole
12
103090
Cabinet Mantel
Figure 10 - Installing Cabinet Mantel
7. Carefully place fireplace on top of hearth base (Figure 11). Be careful not to
Note:
scratch or damage hearth base.
You can secure fireplace to hearth or
floor. Open lower louver. Locate screw holes in bottom of base. Secure with
wood screws through these holes and into hearth or floor.
8. Connect fireplace to gas supply (see page 17).
9. Check all gas connections for leaks. See Checking Gas Connections, page 18.
10. After heater is secured, replace mantel on hearth base (see Figure 10). Make
sure mantel is flush against wall. Install brass trim (see page 10).
103090
Figure 11 - Inserting Fireplace Into Cabinet Mantel
Continued
13
INSTALLING
35 1/2"
17 3/4"
33"
Continued
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, but you must follow the clearances shown in Figure 15, page 15.
Follow the instructions below to install the fireplace in this manner.
HeightFront WidthDepth
Actual Framing ActualFraming ActualFraming
3
32
/8" 33"34 5/16" 35 1/2"16 11/16" 17 3/4"
1. Frame in rough opening. Use dimensions shown in Figure 12 for the rough
opening.
2. Install gas piping to fireplace location. This installation includes an approved
flexible gas line (if allowed by local codes) after the manual shutoff valve. The
flexible gas line must be the last item installed on the gas piping. See InstallingGas Piping to Fireplace Location, page 16.
3. Carefully set fireplace in front of rough opening with back of fireplace inside
wall opening.
4. Attach flexible gas line to fireplace gas regulator. See Connecting Fireplace toGas Supply, page 17.
5. Route blower electrical cord through side or rear access door of fireplace. Plug
electrical cord into electrical outlet.
6. Carefully insert fireplace into rough opening.
7. Attach fireplace to wall studs using nails or wood screws through holes in
nailing flange (see Figure 14).
8. Check all gas connections for leaks. See Checking Gas Connections, page 18.
9. Install brass trim after final finishing and/or painting of wall (see Figure 6, page 10).
14
Figure 12 - Rough Opening for Installing in Wall
If installing in a corner, use dimensions shown in Figure 13 for the rough opening.
The height is 33" which is the same as the wall opening above.
39 3/8"
27 7/8"
35 1/2"
55 5/8"
Figure 13 - Rough Opening for Installing in Corner
103090
INSTALLING
Continued
Nails or Wood
Screws
Nailing Flange
Figure 14 - Attaching Fireplace to Wall Studs
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.
10"
8"
6"
2
Mantel Shelf
1
/2
"
20"24
Distances to
Underside of
Mantel
1
/2
"27
1
/2
"30"
Underside of
Mantel Shelf
All minimum
distances are
in inches
Top of
Fireplace
Opening
103090
Figure 15 - Minimum Mantel Clearances for Built-In Installation
If your installation does not meet the above minimum clearances, you must:
• raise the mantel to an acceptable height, OR
• remove the mantel.
15
INSTALLING
INSTALLING GAS PIPING TO FIREPLACE LOCATION
Continued
NOTICE
A qualified service person must connect fireplace to gas supply.
Follow all local codes.
Installation Items Needed
Before installing fireplace, make sure you have the items listed below.
• piping (check local codes)
• sealant (resistant to LP gas)
• manual shutoff valve *
• test gauge connection *
• sediment trap
* An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is an acceptable
alternative to test gauge connection.
• tee joint
• pipe wrench
• approved flexible gas line with
gas connector
local codes)
(if allowed by
(not provided)
W ARNING
Never connect fireplace to private (non-utility) gas wells. This gas is
commonly known as well-head gas.
CAUTION
Use only new, black iron or steel pipe. Internally-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 pressure will occur.
16
Installation must include a manual 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 16, page 17).
Check your building codes for any special requirements for locating manual shutoff
valve to fireplaces.
Apply pipe joint sealant lightly to male threads. This will prevent excess sealant
from going into pipe. Excess sealant in pipe could result in clogged fireplace
valves.
CAUTION
Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.
Install sediment trap in supply line as shown in Figure 16, page 17. Locate sediment
trap where it is within reach for cleaning. Locate sediment trap where trapped
matter is not likely to freeze. A sediment trap traps moisture and contaminants. This
keeps them from going into fireplace gas controls. If sediment trap is not installed
or is installed wrong, fireplace may not run properly.
103090
INSTALLING
Continued
A.G.A. Design-Certified Manual Shutoff Valve
With 1/8" NPT Tap
Approved
Flexible
Gas Line
3" Minimum
Figure 16 - Gas Connection
CONNECTING FIREPLACE TO GAS SUPPLY
Installation Items Needed
• 5/16" hex socket wrench or nut-driver
• Phillips screwdriver
• sealant (resistant to LP gas, not provided)
From Gas Meter
(5" W.C. to 10.5" W.C.
Pressure)
Sediment
Tee Joint
Pipe Nipple
Cap
Trap
1. Remove fireplace screen. Remove two screws that hold fireplace screen in
place for shipping. These screws are located near top of screen. Discard
screws. Lift fireplace screen up and pull out to remove.
2. Remove access door from rear or side of fireplace. See Product Identification,
page 4, for access door locations.
3. Remove screws that attach log base assembly to fireplace (see Figure 17).
Carefully lift up log base assembly and remove from fireplace (see Figure 17).
Note:
If adding the GFP28BK Brick Liner accessory, install it now. Follow the
instructions in the GFP28BK Accessory Kit.
CAUTION
Do not pick up log base assembly by burners. This could damage
burners. Only handle base by grates.
103090
Figure 17 - Removing Log Base Assembly From Fireplace
Continued
17
INSTALLING
Continued
4. Route flexible gas line from manual shutoff valve into fireplace through side or rear
access panel. Route flexible gas supply line through fireplace access door.
NOTICE
Most building codes do not permit concealed gas connections. A
flexible gas line is provided to allow accessibility from the fireplace. The flexible gas supply line connection to the manual
shutoff valve should be accessible.
5. Apply pipe joint sealant lightly to male threads of gas connector attached to
flexible gas line (see Figure 18). Connect flexible gas line to flexible gas line
attached to gas regulator of fireplace (see Figure 18).
6. Check all gas connections for leaks. See Checking Gas Connections, below.
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 3.
18
To Fireplace
Gas Regulator
Flexible Gas Line
from Fireplace Gas
Regulator
➞
Gas Connector
Flexible Gas Line from
Manual Shutoff Valve
Figure 18 - Attaching Flexible Gas Lines Together
Manual Shutoff Valve
To
Gas Meter
➞
CHECKING GAS CONNECTIONS
W ARNING
Test all gas piping and connections for leaks after installing or
servicing. Correct all leaks at once.
W ARNING
Never use an open flame to check for a leak. Apply a mixture of liquid
soap and water to all joints. Bubbles forming show a leak. Correct all
leaks at once.
Pressure Testing Gas Supply Piping System
Test Pressures In Excess Of 1/2 PSIG
1. Disconnect fireplace and its individual manual shutoff valve from gas supply
piping system. Pressures in excess of 1/2 psig will damage fireplace gas regulator.
2. Cap off open end of gas pipe where manual shutoff valve was connected.
3. Pressurize supply piping system by either using compressed air or opening main
gas valve located on or near gas meter.
4. Check all joints of gas supply piping system. Apply mixture of liquid soap and
water to gas joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Re-connect fireplace and manual shutoff valve to gas supply. Check re-connected fittings for leaks.
103090
INSTALLING
ON
POSITION
OFF
POSITION
Continued
Test Pressures Equal To or Less Than 1/2 PSIG
1. Close manual shutoff valve (see Figure 19).
2. Pressurize supply piping system by either using compressed air or opening main
gas valve located on or near gas meter.
3. Check all joints from gas meter to manual shutoff valve (see Figure 20). Apply
mixture of liquid soap and water to gas joints. Bubbles forming show a leak.
4. Correct all leaks at once.
Pressure Testing Fireplace Gas Connections
1. Open manual shutoff valve (see Figure 19).
2. Open main gas valve located on or near gas meter.
3. Make sure control knob of fireplace is in the OFF position.
4. Check all joints from manual shutoff valve to thermostat gas valve (see Figure
20). Apply mixture of liquid soap and water to gas joints. Bubbles forming
show a leak.
5. Correct all leaks at once.
6. Light fireplace (see Operating Fireplace, pages 21 through 24 [Thermostatcontrolled models] or pages 24 through 26 [Manually-controlled models]).
Check all other internal joints for leaks.
7. Turn off fireplace (see To Turn Off Gas to Appliance, page 23 [Thermostatcontrolled models] or page 26 [Manually-controlled models]).
Manual
Shutoff
Valve
Open
Closed
Figure 19 - Manual Shutoff Valve
Manual Shutoff Valve
Gas Meter
103090
Manual Gas Valve
Figure 20 - Checking Gas Joints
Continued
19
INSTALLING
INSTALLING LOGS
Continued
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.
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.
1. Slide front log (#1) into place behind front burner. Make sure tabs at bottom of log are
behind front burner (see Figure 21).
2 . Slide rear log (#2) into place behind rear burner (see Figure 22).
3. Place left front branch (#4) and right front branch (#5) (24" and 30" models) or front
branch (#4) (18" model) into place (see Figure 23). Make sure notches on bottom rest on
grates.
Front Log (#1)
Tab
20
Figure 21 - Installing Front Log
Rear Log (#2)
Figure 22 - Installing Rear Log
Left Branch (#4)
Right Branch (#5)
Figure 23 - Installing Rear Log
103090
INSTALLING
Continued
W ARNING
You must operate this fireplace with the fireplace screen in place.
Make sure fireplace screen is in place before running fireplace.
5. Install fireplace screen by slipping notches of fireplace screen over screws on
front of fireplace (see Figure 24).
103090
FIREPLACE
Thermostat-
Controlled Model
GFP28TNG
Notches
Figure 24 - Installing Fireplace Screen
Screws for
Mounting
Screen
FOR YOUR SAFETY READ BEFORE LIGHTINGOPERATING
W ARNING
If you do not follow these instructions exactly, a fire or explosion may
result causing property damage, personal 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 neighbor’s phone. Follow the gas
supplier’s 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, don’t try to repair it, call a qualified service
technician 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 service technician to inspect the appliance and to replace any part of the
control system and any gas control which has been under water.
Continued
21
OPERATING
LIGHTING INSTRUCTIONS
FIREPLACE
Thermostat-
Controlled Model
Continued
W ARNING
You must operate this fireplace with the fireplace screen in place.
Make sure fireplace screen is installed before running fireplace.
NOTICE
During initial operation of new fireplace, burning logs will give off
a paper-burning smell. Orange flame will also be present. Open
window to vent smell. Operate fireplace on HI position to burn off
odor. This will only last a few hours.
1. STOP! Read the safety information on page 21.
2. Make sure manual shutoff valve is fully open.
Clockwise
3. Turn control knob clockwise
Ignitor Button
Figure 25 - Control Knob and Ignitor Button Location
4. 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 above. If you
don’t smell gas, go to the next step.
5. Turn control knob counterclockwise
control knob for five (5) seconds (see Figure 25, above).
Note:
If running fireplace for first time, there will be air in gas line. You may
need to press in control knob for 30 seconds or longer. This will allow air to
bleed from the gas system.
6. Continue pressing control knob in. Press and release ignitor button. This will light
pilot. The pilot is attached to the front burner. If needed, keep pressing ignitor
button until pilot lights.
7. 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 3 through 7. This fireplace has a safety
interlock system. Wait one (1) minute for system to reset before lighting pilot
again.
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 23.
to the OFF position.
to the PILOT position. Press in
C-clockwise
Control Knob
22
Thermocouple
Ignitor Electrode
Pilot Burner
Figure 26 - Pilot
103090
OPERATING
FIREPLACE
8. Turn control knob counterclockwise
burners should light. Set control knob to any heat level between HI and LO.
C-clockwise
to desired heating level. The
Thermostat-
Controlled Model
Continued
CAUTION
Do not try to adjust heating levels by using the manual shutoff valve.
TO TURN OFF GAS TO APPLIANCE
Shutting Off Fireplace
Turn control knob clockwise
Shutting Off Burners Only (pilot stays lit)
Turn control knob clockwise
THERMOSTA T CONTROL OPERATION
You can set the thermostat control knob to any comfort level between HI and LO.
The thermostat will gradually modulate the heat output and flame height from higher
to lower settings, or pilot, in order to maintain the comfort level you select. The ideal
comfort setting will vary by household depending upon the amount of space to be
heated, the output of the central heating system, etc.
Note:
Selecting the HI setting will cause the burner to remain on without modulating
down in most cases.
MANUAL LIGHTING PROCEDURE
1. Follow steps 1 through 5 under Lighting Instructions, page 22.
2. Depress control knob and light pilot with match.
3. Keep control knob pressed in for 30 seconds after lighting pilot. After 30
seconds, release control knob. Now follow step 8, above.
Clockwise
to the OFF position.
Clockwise
to the PILOT position.
BLOWER OPERATION
WARNING
This fireplace has a three-prong, grounded electrical plug. this plug
helps protect you against electrical shock. Only connect plug to a
properly grounded, three-prong receptacle. Do not cut or remove the
grounding plug from this plug.
Locate the blower switch by opening lower louver on fireplace. Blower switch is
located at lower left inside louver door.
The thermostat-controlled blower has three settings: ON, OFF, and AUTO. In the
ON position, the blower will operate constantly. In the OFF position, the blower will
not operate. In the AUTO postion, the blower will start when the thermostat senses a
sufficient increase in firebox temperature.
Note:
Your gas logs and thermostat blower will not turn on and off at the same time.
The fireplace may run for several minutes before the blower turns on. After the
heater modulates to the pilot position, the blower will continue to run. The blower
will shut off after the firebox temperature decreases.
It is safe to operate the fireplace with the burner turned off. However, the blower
helps distribute heated air from the fireplace.
103090
Continued
23
OPERATING
FOR YOUR SAFETY READ BEFORE LIGHTING
FIREPLACE
Manually-Controlled
Model
GFP28MNG
WARNING
If you do not follow these instructions exactly, a fire or explosion
may result causing property damage, personal 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 neighbor’s phone. Follow the gas
supplier’s 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, don’t try to repair it, call a qualified service
technician 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 service technician to inspect the appliance and to replace any part of the
control system and any gas control which has been under water.
LIGHTING INSTRUCTIONS
WARNING
You must operate this fireplace with the fireplace screen in place.
Make sure fireplace screen is installed before running fireplace.
NOTICE
During initial operation of new fireplace, burning logs will give off
a paper-burning smell. Orange flame will also be present. Open
window to vent smell. Operate fireplace on HI position to burn off
odor. This will only last a few hours.
1. STOP! Read the safety information above.
2. Make sure manual shutoff valve is fully open.
3. Turn control knob clockwise
Control Knob
Figure 27 - Control Knob and Ignitor Button Location
Clockwise
to the OFF position.
Ignitor Button
IGNITOR
24
103090
OPERATING
FIREPLACE
Manually-Controlled
Model
Continued
4. 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 above. If you
don’t smell gas, go to the next step.
5. Slightly depress and turn control knob counterclockwise
position. Press in control knob for five (5) seconds (see Figure 27, page 24).
Note:
If running fireplace for first time, there will be air in gas line. You may
need to press in control knob for 30 seconds or longer. This will allow air to
bleed from the gas system.
6. Continue pressing control knob in. Press and release ignitor button. This will light
pilot. The pilot is attached to 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 26.
7. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds,
release control knob.
Note:
If pilot goes out, repeat steps 3 through 7.
• If control knob does not pop out when released, contact a qualified service
person or gas supplier for repairs.
C-clockwise
to the PILOT
Thermocouple
Figure 28 - Pilot
8. Slightly depress and turn control knob counterclockwise
position. Both burners should light. Set control knob to either HIGH or LOW.
Ignitor Electrode
Pilot Burner
C-clockwise
to the HIGH
VARIABLE CONTROL OPERATION
The variable control valve can be set to any heat setting and flame height desired, by
simply turning the control knob until that setting is attained. Even the lowest setting
provides realistic flames and glowing embers from two burners. Selecting higher
settings produces greater heat output. This results in increased heating comfort.
WARNING
Do not operate heater between pilot and high positions.
103090
CAUTION
Do not try to adjust heating levels by using the manual shutoff valve.
25
OPERATING
TO TURN OFF GAS TO APPLIANCE
FIREPLACE
Manually-Controlled
Model
Continued
Shutting Off Fireplace
1. Turn control knob clockwise
2. Slightly depress control knob and turn clockwise
3. Slightly depress control knob and turn clockwise
Shutting Off Burners Only (pilot stays lit)
1. Turn control knob clockwise
2. Press in and turn clockwise
Clockwise
to the HIGH position.
to the HIGH position.
Clockwise
Clockwise
to the PILOT position.
Clockwise
to the PILOT position.
Clockwise
to the OFF position.
MANUAL LIGHTING PROCEDURE
1. Follow steps 1 through 5 under Lighting Instructions, page 24.
2. Depress control knob and light pilot with match.
3. Keep control knob pressed in for 30 seconds after lighting pilot. After 30
seconds, release control knob. Now follow step 8, above.
26
103090
INSPECTING
BURNERS
Check pilot flame pattern and burner flame patterns often.
PILOT FLAME PATTERN
Figure 29 shows a correct pilot flame pattern. Figure 30 shows an incorrect pilot flame
pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the
thermocouple to cool. When the thermocouple cools, the fireplace will shut down.
Thermocouple
Figure 29 - Correct Pilot
Flame Pattern
If pilot flame pattern is incorrect, as shown in Figure 29
• turn fireplace off (see To Turn Off Gas to Appliance, page 23 [Thermostatcontrolled models} or page 26 [Manually-controlled models])
• see Troubleshooting, pages 28 through 31
Pilot Burner
Thermocouple
Figure 30 - Incorrect Pilot
Flame Pattern
Pilot Burner
FRONT BURNER FLAME PATTERN
Figure 31 shows correct front burner flame pattern. Figure 32 shows incorrect front
burner flame pattern. The incorrect burner flame pattern shows yellow tipping at top of
blue flame.
W ARNING
If front burner flame pattern shows yellow tipping, your fireplace
could produce increased levels of carbon monoxide. Follow instructions at bottom of this page. Yellow flame on rear burner is normal.
103090
NOTICE
Do not mistake orange flames with yellow tipping. Dirt or other
fine particles are burned by fireplace, causing brief patches of
orange flame.
CORRECT FLAME PATTERN AT HIGH POSITION
Figure 31 - Correct Front Burner Flame Pattern
Yellow
Tipping
At Top
of Blue
Flame
INCORRECT FLAME PATTERN AT HIGH POSITION
Figure 32 - Incorrect Front Burner Flame Pattern
If front burner flame pattern is incorrect, as shown in Figure 32
• turn fireplace off (see To Turn Off Gas to Appliance, page 23 [Thermostatcontrolled models} or page 26 [Manually-controlled models])
• see Troubleshooting, pages 28 through 31
27
CLEANING
AND
MAINTENANCE
W ARNING
Turn off fireplace and let cool before cleaning.
CAUTION
You must keep control areas, burners, and circulating air passageways of fireplace clean. Inspect these areas of fireplace
before each use. Have fireplace inspected yearly by a qualified
service person. Fireplace may need more frequent cleaning due to
excessive lint from carpeting, bedding material, etc.
ODS/PILOT AND BURNERS
• Use a vacuum cleaner or small, soft bristled brush to clean.
LOGS
• If you remove logs for cleaning, refer to Installing Logs, pages 20 and 21, to
properly replace logs.
• Replace log(s) if broken or chipped (dime-sized or larger).
TROUBLE-
SHOOTING
Note:
items are listed in order of
All troubleshooting
operation.
W ARNING
Turn off fireplace and let cool before servicing. Only a qualified
service person should service and repair fireplace.
CAUTION
Never use a wire, needle, or similar object to clean ODS/pilot. This
can damage ODS/pilot unit.
OBSERVED
PROBLEM
When ignitor button
is pressed, there is no
spark at ODS/pilot
POSSIBLE
CAUSE
1. Ignitor cable pinched or
wet
2. Ignitor electrode not connected to ignitor cable
3. Piezo ignitor nut is loose
REMEDY
1. Free ignitor cable if
pinched by any metal or
tubing. Keep ignitor
cable dry
2. Reconnect ignitor cable
3. Tighten nut holding
piezo ignitor to base
panel of log set. Nut is
located behind base
panel.
28
4. Broken ignitor cable
5. Ignitor electrode broken
6. Bad piezo ignitor
7. Ignitor electrode positioned wrong
4. Replace ignitor cable
5. Replace ignitor
6. Replace piezo ignitor
7. Replace ignitor
Continued
103090
TROUBLE-
SHOOTING
Continued
OBSERVED
PROBLEM
When ignitor button
is pressed, there is
spark at ODS/pilot
but no ignition
POSSIBLE
CAUSE
1. Gas supply turned off or
manual shutoff valve
closed
2. Control knob not in
PILOT position
3. Control knob not
pressed in while in
PILOT position
4. Air in gas lines when
installed
5. ODS/pilot is clogged
6. Gas regulator setting is
not correct
REMEDY
1. Turn on gas supply or
open manual shutoff
valve
2. Turn control knob to
PILOT position
3. Press in control knob
while in PILOT position
4. Continue holding down
control knob. Repeat
igniting operation until
air is removed
5. Clean ODS/pilot (see
Cleaning and Maintenance, page 28) or
replace ODS/pilot
assembly
6. Replace gas regulator
ODS/pilot lights but
flame goes out when
control knob is
released
1. Control knob not fully
pressed in
2. Control knob not
pressed in long enough
3. Manual shutoff valve
not fully open
4. Thermocouple connection loose at control
valve
5. Pilot flame not touching
thermocouple, which
allows thermocouple to
cool, causing pilot flame
to go out. This problem
could be caused by one
or both of the following:
A) Low gas pressure
B) Dirty or partially
clogged ODS/pilot
6. Thermocouple damaged
7. Control valve damaged
8. On thermostat models,
safety interlock system
has been triggered
1. Press in control knob
fully
2. After ODS/pilot lights,
keep control knob
pressed in 30 seconds
3. Fully open manual shutoff valve
4. Hand tighten until snug,
then tighten 1/4 turn
more
5. A) Contact local natural
gas company
B) Clean ODS/pilot (see
Cleaning and Maintenance, page 28) or
replace ODS/pilot
assembly
6. Replace thermocouple
7. Replace control valve
8. Wait one minute for
safety interlock system
to reset. Repeat ignition
operation
103090
29
TROUBLE-
SHOOTING
Continued
OBSERVED
PROBLEM
One or both burners do
not light after ODS/
pilot is lit
POSSIBLE
CAUSE
1. Burner orifice(s)
clogged
2. Burner orifice(s)
diameter is too small
3. Inlet gas pressure is
too low
4. Mislocated crossover
tube
REMEDY
1. Clean burner(s) (see
Cleaning and Maintenance, page 28) or replace
burner orifice(s)
2. Replace burner orifice(s)
3. Contact local propane gas
company
4. Contact qualified service
person
Delayed ignition of
one or both burners
Burner backfiring
during combustion
Yellow flame in front
burner during burner
combustion
Slight smoke or odor
during initial operation
1. Manifold pressure is
too low
2. Burner orifice(s)
clogged
3. Mislocated crossover
tube
1. Burner orifice is
clogged or damaged
2. Damaged burner
3. Gas regulator defective
1. Not enough air
2. Gas regulator defective
1. Residues from manufacturing processes
and logs curing
1. Contact local propane gas
company
2. Clean burner(s) (see
Cleaning and Maintenance, page 28) or replace
burner orifice(s)
3. Contact qualified service
person
1. Clean burner (see Clean-ing and Maintenance, page
28) or replace burner
orifice
2. Replace damaged burner
3. Replace gas regulator
1. Check burner(s) for dirt
and debris. If found, clean
burner(s) (see Cleaning andMaintenance, page 28)
2. Replace gas regulator
1. Problem will stop after a
few hours of operation
Fireplace produces a
whistling noise when
burners are lit
Moisture/condensation
noticed on windows
30
1. Turning control knob
to HI position when
burners are cold
2. Air in gas line
3. Air passageways on
fireplace blocked
4. Dirty or partially
clogged burner
orifice(s)
1. Not enough combustion/ventilation air
1. Turn control knob to LO
position and let warm up
for a minute
2. Operate burners until air is
removed from line. Have
gas line checked by local
propane gas company
3. Observe minimum
installation clearances
(see page 11)
4. Clean burners (see
Cleaning and Maintenance, page 28) or replace
burner orifice(s)
1. Refer to Air for Combus-
tion and Ventilation
requirements (page 6)
Continued
103090
TROUBLE-
SHOOTING
Continued
W ARNING
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 neighbor’s phone.
Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
IMPORTANT:
Cleaning supplies, paint, paint remover, cigarette smoke, cements and glues, new
carpet or textiles, etc., create fumes. These fumes may mix with combustion air and
create odors. These odors will disappear over time.
OBSERVED
PROBLEM
Fireplace produces a
clicking/ticking noise
just after burners are
lit or shut off
Fireplace produces
unwanted odors
Fireplace shuts off in
use (ODS operates)
Operating fireplace where impurities in air exist may create odors.
POSSIBLE
CAUSE
1. Metal expanding while
heating or contracting
while cooling
1. Fireplace burning vapors from paint, hair
spray, glues, cleaners,
chemicals, new carpet,
etc. (See
statement above)
2. Gas leak. See Warn-
ing statement above
1. Not enough fresh air is
available
2. Low line pressure
3. ODS/pilot is partially
clogged
IMPORTANT
REMEDY
1. This is common with most
fireplaces. If noise is
excessive, contact qualified service person
1. Open window and ventilate room. Stop using odor
causing products while
fireplace is running
2. Locate and correct all
leaks (see Checking GasConnections, page 18)
1. Open window and/or door
for ventilation
2. Contact local natural gas
company
3. Clean ODS/pilot (see
Cleaning and Maintenance, page 28)
Gas odor even when
control knob is in OFF
position
Gas odor during
combustion
Moisture/condensation
noticed on windows
103090
1. Gas leak. See Warn-
ing statement above
2. Control valve defective
1. Foreign matter between control valve
and burner
2. Gas leak.
ing statement above
1. Not enough combustion/ventilation air
See Warn-
1. Locate and correct all
leaks (see Checking GasConnections, page 18)
2. Replace control valve
1. Take apart gas tubing and
remove foreign matter
2. Locate and correct all
leaks (see Checking GasConnections, page 18)
1. Refer to Air for Combus-
tion and Ventilation
requirements(page 6)
31
ILLUSTRATED
PARTS
BREAKDOWN
Log Base Assembly
V ariable ManuallyControlled Models
This list contains replaceable parts used in your fireplace. When ordering parts,
follow the instructions listed under Replacement Parts on page 38 of this manual.
This list contains replaceable parts used in your fireplace. When ordering parts,
follow the instructions listed under Replacement Parts on page 38 of this manual.
KEYPART NUMBER FOR MODEL
NO.GFP28TNGQTY. GFP28MNGQTY.DESCRIPTION
1101357-011101357-011Top Outer Casing
2101373-011101373-011Outer Casing
3102806-01CB1102806-01CB1Right Front Side
4102805-01CB1102805-01CB1Left Front Side
5101368-011101368-012Access Door
6101352-01CB1101352-01CB1Top Front
7101739-01CB1101739-01CB1Louver Hood
8101375-03BR1101375-04BR1Firebox Wrapper
9101738-01CB1101738-01CB1Lower Louver Assembly
10101403-011——Top Duct
11101348-012101348-012Firebox Support
12101347-01CB1101347-01CB1Outer Base
13099230-024099230-024Shoulder Screw
14098304-0115098304-0115Phillips Pan Head Screw, #10
15101872-021101872-031Firebox Top
16M11084-266M11084-2661Hex Screw, #10
17101746-011101746-011Handle
18100587-013100587-013Brass Screw, #6-20x3/8"
19101784-012101784-012Snap-in Magnet
20101367-02BR1101367-02BR1Screen Assembly
21101404-011——Baffle
22097384-022——Hex Nut #8-32 with Washer
23101573-011——Back Duct with Bushing
24101368-021——Rear Access Door
25101614-011——Limit Switch (thermal disk)
This list contains replaceable parts used in your fireplace. When ordering parts,
follow the instructions listed under Replacement Parts on page 39 of this manual.
GFP28TNG
GFP28MNG
Assembly
Models)
102753-011102753-011Brass Trim Kit
100639-011100639-011Caution Decal
102865-011102865-011Brass Trim Hardware
101584-011101584-011Wiring Diagram Decal
103090
PARTS AVAILABLE — NOT SHOWN
37
SERVICE
HINTS
When gas pressure is too low
• pilot will not stay lit
• burners will have delayed ignition
• fireplace will not produce specified heat
When gas quality is bad
• pilot will not stay lit
• burners will produce flames and soot
• fireplace will backfire when lit
You may feel your gas pressure is too low or gas quality is bad. If so, contact your
local natural gas supplier.
SPECIFICATIONS
TECHNICAL
SERVICE
WIRING
DIAGRAM
Btu (Low/High)20,000/28,000
Type GasNatural Gas Only
IgnitionPiezo
Manifold Pressure3.4" W.C.
Inlet Gas Pressure (in. of water)
Maximum10.5"
Minimum*5"
(*For purpose of input adjustment.)
Shipping Weight80 lbs.
You may have further questions about installation, operation, or troubleshooting.
If so, contact Perfection-Schwank’s Technical Service Department at
1-800-776-8459 (Outside Georgia) or 706-554-2101.
Fan Switch
(Off/On/Auto)
Off
Auto
1
2
3
On
Red
Fan
Switch
(N.O.)
Black
38
110/115
V.A.C.
Black
White
Green
Figure 33 - Blower Wiring Diagram for Thermostat-Controlled Models
Blue
Black
Black
Blower
Motor
Black
Blower
Motor
103090
REPLACEMENT
PARTS
Note:
Use only original replacement parts. This will protect your warranty cover-
age for parts replaced under warranty.
Parts Under Warranty
Contact authorized dealers of this product. If they can’t supply original replacement part(s), call Perfection-Schwank’s Technical Service Department at
1-800-776-8459 (Outside Georgia) or 706-554-2101.
When calling Perfection-Schwank, have ready
• your name
• your address
• model number of your fireplace
• how fireplace was malfunctioning
• type of gas used (propane/LP or natural gas)
• purchase date
Usually, we will ask you to return the defective part to the factory.
Parts Not Under Warranty
Contact authorized dealers of this product. If they can’t supply original replacement part(s), call Perfection-Schwank’s Parts Department at 1-800-776-8459
(Outside Georgia) or 706-554-2101 for referral information.
When calling Perfection-Schwank, have ready
• model number of your fireplace
• the replacement part number
ACCESSORIES
Purchase these fireplace accessories from your local dealer or Parts Central. If
they can not supply these accessories, call Perfection-Schwank’s Sales Department at 1-800-776-8459 (Outside Georgia) or 706-554-2101 for referral information. You can also write to the address listed on the back page of this manual.
CABINET MANTEL
GM28MU - Unfinished
Mantel features moldings, fluted sides, and medallion. Available in unfinished hardwood, ready to
stain or paint.
Dimensions (H xW xD): 44" x 57-3/4" x 22-7/8"
HEARTH BASE
GFP28HBU - Unfinished
The hearth base creates a handsome
riser for the fireplace . Dimensions
(H xW xD): 6-1/2" x 58" x 28-9/16"
103090
FIREBOX BRICK LINER - GFP28BK
Ceramic fiber firebox adds the look of real brick.
39
WARRANTY INFORMATION
KEEP THIS WARRANTY
Model
Serial No.
Date Purchased
Always specify model and serial numbers when communicating with the factory.
We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our
standard written warranty. We make no other warranty, expressed or implied.
LIMITED WARRANTY
PERFECTION-SCHWANK VENT-FREE PROPANE/LP GAS FIREPLACE
Perfection-Schwank warrants this product to be free from defects in materials and components for one (1) year from the
date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with
all applicable instructions. To make a claim under this warranty the Bill of Sale or cancelled check must be presented.
This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to restore
this heater to proper operating condition when provided by a Perfection-Schwank Service Center. Warranty part(s) MUST
be obtained through authorized dealers of this product and/or Perfection-Schwank who will provide original factory
replacement parts. Failure to use original factory replacement parts voids this warranty. The heater MUST be installed by
a qualified installer in accordance with all local codes and instructions furnished with the unit.
This warranty does not apply to parts that are not in original condition because of normal wear and tear, or parts that fail
or become damaged as a result of misuse, accidents, lack of proper maintenance or defects caused by improper installation.
Travel, diagnostic cost, labor, transportation and any and all such other costs related to repairing a defective heater will
be the responsibility of the owner.
TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE
PRODUCT; THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES
AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO ONE (1) YEAR ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE; AND PERFECTION-SCHWANK’S LIABILITY IS HEREBY
LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND PERFECTION-SCHWANK SHALL NOT BE
LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES.
Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or
consequential damages, so the above limitation on implied warranties, or exclusion or limitation on damages may not apply
to you.
This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.
For information about this warranty write:
Perfection-Schwank, Inc.
One Schwank Way at Hwy 56
P.O. Box 749
Waynesboro, Georgia 30830-0749
1-800-776-8459 (outside of Georgia)
706-554-2101
103090-01
Rev. A
7/96
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