Superior Fireplaces TF18NR User manual

For use with log sets
Installation and Operation Instructions
Superior®Unvented (Vent-Free) Gas Log Heaters
Models
TF18NR TF2430NR
TF18PR TF2430PR
PFS
®
US
Report No. F11-017
P/N 126816-01 Rev. E 01/2019
P126816-01
LTF18MM LTF18RS LTF18WT
LTF24MM LTF24RS LTF24WT
LTF30MM LTF30RS LTF30WT
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
This appliance may be installed in an aftermarket permanently located, manufactured (mobile) home,
where not prohibited by local codes. 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.
WARNING: This appliance is for installation only in a solid-fuel burning masonry or UL127 factory-built
fireplace or in a listed ventless firebox enclosure. It is design-certified for these installations in accordance
with ANSI Z21.11.2. Exception: DO NOT install this appliance in a factory-built fireplace that includes
instructions stating it has not been tested or should not be used with unvented gas logs.
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 Air for Combustion and Ventilation
section on Page 6 of this manual.
- 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.
• Leave the building immediately.
• 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.
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could result in serious injury, death, or property damage.

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SAFETY
TABLE OF CONTENTS
Safety .................................................................. 2
Product Identication........................................... 5
Local Codes......................................................... 5
Unpacking............................................................ 5
Product Features................................................. 6
Air For Combustion and Ventilation..................... 6
Installation ........................................................... 8
Operation........................................................... 25
Inspecting Burners............................................. 27
Cleaning and Maintenance................................ 28
Troubleshooting................................................. 29
Replacement Parts............................................ 33
Service Hints ..................................................... 33
Technical Service............................................... 33
Specications .................................................... 33
Wiring Diagram.................................................. 33
Accessories ....................................................... 34
Parts .................................................................. 36
Warranty ............................................................ 41
WARNING: FIRE, EXPLOSION, AND ASPHYXIATION HAZARD
Improper adjustment, alteration, service, maintenance, or installation of this
heater or its controls can cause death or serious injury.
Read and follow instructions and precautions in User’s Information Manual
provided with this heater.
WARNING: This appliance is for
installation only in a solid-fuel burn-
ing masonry or UL127 factory-built
replace or in a listed ventless re-
box enclosure. It is design-certied
for these installations in accordance
with ANSI Z21.11.2. Exception:
DO NOT install this appliance in a
factory-built replace that includes
instructions stating it has not been
tested or should not be used with
unvented gas logs.
WARNING: This is an unvented
gas-red 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 Air for Combustion and
Ventilation section on Page 6 of
this manual.
This appliance may be installed in an
aftermarket,* permanently located,
manufactured (mobile) home, where
not prohibited by local codes.
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.
* Aftermarket: Completion of sale, not for
purpose of resale, from the manufacturer
DANGER: Carbon monoxide
poisoning may lead to death!
WARNING:Vent-free productsare
prohibitedfor bedroomand bathroom
installation in the Commonwealth of
Massachusetts.
WARNING: This product
can expose you to chemicals
including Carbon Black, which is
known to the State of California
to cause cancer, and Carbon
Monoxide, which is known to
the State of California to cause
birth defects or other reproduc-
tive harm. For more information
go to www.P65Warnings.ca.gov

SuperiorFireplaces.us.com
126816-01E 3
Carbon Monoxide Poisoning: Early signs of
carbon monoxide poisoning resemble the u,
with headaches, dizziness or nausea. If you
have these signs, the replace may not be
working properly. Get fresh air at once! Have
replace serviced. Some people are more af-
fected by carbon monoxide than others. These
include pregnant women, people with heart
or lung disease or anemia, those under the
inuence of alcohol and those at high altitudes.
Natural and Propane/LP gases are odorless. An
odor-making agent is added to these gases.
The odor helps you detect a gas leak. How-
ever, 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 appliance.
SAFETY
Continued
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, operate
or service this appliance. Improper
use of this appliance can cause
serious injury or death from burns,
re, explosion, electrical shock and
carbon monoxide poisoning.
WARNING: Any change to this
heater or its controls can be dan-
gerous.
WARNING: Do not use a blower
insert, heat exchanger insert or other
accessory not approved for use with
this heater.
WARNING: Do not allow fans to
blow directly into the heater. Avoid
any drafts that alter burner ame
patterns. Ceiling fans can create
drafts that alter burner ame pat-
terns. Altered burner patterns can
cause sooting.
Due to high temperatures, the ap-
pliance should be located out of
trafc and away from furniture and
draperies.
Do not place clothing or other
ammable material on or near the
appliance. Never place any objects
on the heater.
Appliance base assembly becomes
very hot when running appliance.
Children and adults should be
alerted to the hazard of high surface
temperature and should stay away
to avoid burns or clothing ignition.
Appliance will remain hot for a time
after shutdown. Allow surface to
cool before touching.
WARNING: Do not place log
scraps or volcanic stone on burner.
Young children should be care-
fully supervised when they are in
the same room with the appliance.
When using the hand-held remote
accessory, keep selector switch in
the OFF position to prevent children
from turning on burners with remote.
You must operate this appliance
with the replace screen and hood
in place. Make sure replace screen
and hood are in place before running
appliance. The replace screen shall
have openings for introduction of
combustion air.
Keep the appliance area clear and
free from combustible materials,
gasoline and other ammable va-
pors and liquids.
Solid-fuels shall not be burned in a
replace in which an unvented room
heater is installed.

126816-01E4SuperiorFireplaces.us.com
SAFETY
Continued
2. Do not place propane/LP supply tank(s)
inside 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 neighbor’s phone. Follow the gas sup-
plier’s instructions
• if you cannot reach your gas supplier,
call the re department
4. This heater shall not be installed in a
bedroom or bathroom, unless installed
as a vented appliance. See Installing
Damper Clamp Accessory (Required For
Vented Applications), Page 12. This gas
log set may not be installed as a vented
appliance in a bedroom or bathroom in
the Commonwealth of Massachusetts.
5. WARNING: Before installing in a solid
fuel-burning replace, the chimney ue
and rebox must be cleaned of soot,
creosote, ashes and loose paint by a
qualied chimney cleaner. Creosote will
ignite if highly heated. A dirty chimney ue
may create and distribute soot within the
house. Inspect chimney ue for damage.
If damaged, repair ue and rebox before
operating appliance.
6. Do not burn solid-fuel in a replace in
which a vent-free appliance is installed.
7. If appliance has glass doors, never oper-
ate this appliance with glass doors closed.
Any glass doors shall be fully opened
Installation and repair should be
done by a qualied service person.
The appliance should be inspected
before use and at least annually by
a professional service person. More
frequent cleaning may be required
due to excessive lint from carpeting,
bedding material, etc. It is imperative
that control compartments, burners,
and circulating air passageways of
the appliance be kept clean.
1. WARNING: 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.
when the appliance is in operation. If you
operate appliance with doors closed, heat
buildup inside replace will cause glass to
burst. Make sure there are no obstructions
across openings of replace.
8. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
Page 28.
9. Before using furniture polish, wax, carpet
cleaner or similar products, turn appliance
off. If heated, the vapors from these prod-
ucts may create a white powder residue
within burner box or on adjacent walls and
furniture.
10. This appliance needs fresh, outside air
ventilation to run properly. This appliance
has an Oxygen Depletion Sensing (ODS)
safety shutoff system. The ODS shuts
down the appliance if enough fresh air is
not available. See Air for Combustion and
Ventilation, Page 6. If appliance keeps
shutting off, see Troubleshooting, Page 29.
11. Do not run appliance
• where ammable liquids or vapors are
used or stored
• under dusty conditions
12. Do not use this appliance to cook food or
burn paper or other objects.
13. Do not use this room heater if any part
has been under water. Immediately call
a qualied service technician to inspect
the room heater and to replace any part
of the control system and any gas control
which has been under water.
14. Do not operate appliance if any log is
broken. Do not operate appliance if a log
is chipped (dime-sized or larger).
15. Turn appliance off and let cool before
servicing, installing or repairing. Make
sure the selector switch is in the OFF
position. Only a qualied service person
should install, service or repair appliance.
16. Make sure the selector switch is in the
OFF position when you are away from
home for long periods of time.
17. Remote-ready appliances must not be con-
nected to any external electrical source.
18. Operating appliance above elevations of
4,500 feet may cause pilot outage.
19. To prevent performance problems, do
not use propane/LP fuel tank of less than
100 lb. capacity (propane/LP units only).
20. Provide adequate clearances around air
openings.
21. Follow the clearance requirements within
this manual to assure adequate clear-
ances for accessibility for purposes of
servicing and proper operation.

126816-01E 5
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PRODUCT IDENTIFICATION
Figure 1 - Product Identication
Glowing
Embers
Chassis
Control
Knob
Flame
Adjustment
Knob
Left
Side
Right
Side
Front
LOCAL CODES NOTE: Do not pick up appliance base as-
sembly by burners. This could damage the
appliance. Always handle base assembly
by grate.
2. Remove all protective packaging applied
to logs and appliance for shipment.
3. Check appliance for any shipping dam-
age. If appliance is damaged, promptly
inform dealer where you purchased the
appliance.
Install and use appliance with care. Follow all
local codes. In the absence of local codes, use
the latest edition of The National Fuel Gas
Code, ANSI Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
25 West 43rd Street, 4th oor
New York, NY 10036
National Fire Protection Association, Inc.
1 Batterymarch Park
Quincy, MA 02169-7471
UNPACKING
1. Remove logs and appliance base assem-
bly from carton(s).
COMMONWEALTH OF MASSACHUSETTS REQUIREMENTS
These appliances are approved for installation in the US state of Massachusetts if the fol-
lowing additional requirements are met:
• Un-vented Room Heaters shall be installed in accordance with 527 CMR 30.
• Installation and repair must be done by a plumber or gas tter licensed in the Common-
wealth of Massachusetts.
• The exible gas line connector used shall not exceed 36 inches (92 centimeters) in length.
• The individual manual shut-off must be a T-handle type valve.
• Unvented appliances may NOT be installed in bedrooms or bathrooms.
• A working smoke detector must be installed in the area where vent-free appliances are
installed.
Seller of unvented propane or natural gas-red supplemental room heaters shall provide
to each purchaser a copy of 527 CMR 30 upon sale of the unit.
CAUTION: Do not remove
the data plates from the grate
assembly. The data plates
contain important warranty
and safety information.

SuperiorFireplaces.us.com 126816-01E6
OPERATION
This appliance 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 ames and glowing coals. This
appliance is designed for vent-free operation
with ue damper closed. It has been tested
and approved to the ANSI Z21.11.2 standard
for unvented appliances. State and local codes
in some areas prohibit the use of vent-free ap-
pliances. This appliance may also be operated
as a vented decorative (ANSI Z21.60) product
by opening the ue damper.
SAFETY DEVICE
This appliance has a pilot with an Oxygen
Depletion Sensing (ODS) safety shutoff
system. The ODS/pilot is a required feature
for vent-free room appliances. The ODS/pilot
shuts off the appliance if there is not enough
fresh air.
ELECTRONIC IGNITION SYSTEM
This appliance has an electronic Igniter to light
appliance fuel supply.
Today’s homes are built more energy efcient
than ever. New materials, increased insulation
and new construction methods help reduce
heat loss in homes. Homeowners apply
weather strip and caulk around windows and
doors to keep the cold air out and the warm air
in. During heating months, homeowners want
their homes as airtight as possible.
While it is good to make your home energy
efcient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning ap-
pliances need fresh air for proper combustion
and ventilation.
Exhaust fans, some replaces, clothes dryers
and some fuel-burning appliances draw air
from the house to operate. You must provide
adequate fresh air for these appliances. That
will ensure proper venting of vented fuel-burning
appliances.
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation.
All spaces in homes fall into one of the three
following ventilation classications:
1. Unusually Tight Construction
2. Unconned Space
3. Conned Space
The information on Pages 6-8 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 un-
usually tight construction, you must provide
additional fresh air.
Unusually tight construction is dened 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-m
2
) 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 oors, between wall-ceiling joints,
between wall panels, at penetrations
for plumbing, electrical and gas lines
and at other openings.
If your home meets all three criteria above,
you must provide additional fresh air. See
Ventilation Air From Outdoors, Page 8. If your
home does not meet all three criteria above,
proceed to Determining Fresh-Air Flow For
Heater Location, Page 7.
Conned and Unconned Space
The National Fuel Gas Code, ANSI Z223.1/
NFPA54 allows two methods for determining
whether the space in which the heater is being
AIR FOR COMBUSTION AND VENTILATION
PRODUCT FEATURES
WARNING: This heater shall not
be installed in a room or space un-
less the required volume of indoor
combustion air is provided by the
method described in the National
Fuel Gas Code, ANSI Z223.1/NFPA
54, the International Fuel Gas Code,
or applicable local codes. Read the
following instructions to ensure
properfreshairfor this and otherfuel-
burning appliances in your home.

126816-01E 7
SuperiorFireplaces.us.com
AIR FOR COMBUSTION AND VENTILATION
Continued
Vent-free replace __________ Btu/Hr
Gas water heater* __________ Btu/Hr
Gas furnace __________ Btu/Hr
Vented gas heater __________ Btu/Hr
Gas replace logs __________ Btu/Hr
Other gas appliances* + _________ Btu/Hr
Total = _________ Btu/Hr
* Do not include direct-vent gas appliances.
Direct-vent draws combustion air from the
outdoors and vents to the outdoors.
Example:
Gas water heater __________ Btu/Hr
Vent-free replace + _________ 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 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 above example is a conned
space because the actual Btu/Hr used is more
than the maximum Btu/Hr the space can sup-
port. You must provide additional fresh air. Your
options are as follows:
A. Rework worksheet, adding the space of an
adjoining room. If the extra space provides
an unconned space, remove door to adjoin-
ing 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 heater, if lower Btu/Hr
size makes room unconned.
If the actual Btu/Hr used is less than the maxi-
mum Btu/Hr the space can support, the space is
an unconned space. You will need no additional
fresh air ventilation.
40,000
33,000
73,000
installed is conned or unconned space. The
standard method denes a conned space as
a space whose volume is less than 50 cubic
feet per 1,000 Btu/hr (4.8 m
3
per kw) of the ag-
gregate input rating of all appliances installed
in that space and an unconned space as
a space whose volume is not less than 50
cubic feet per 1,000 Btu/hr (4.8 m
3
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 un-
conned space.
Where the air inltration rate of a structure is
known, the Known Air Inltration Rate Method
may be used. Follow The National Fuel Gas
Code, ANSI Z223.1/NFPA 54 to use this
method to determine if the space is conned
or unconned.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation
grills between them.
DETERMINING FRESH-AIR FLOW
FOR HEATER LOCATION
Determining if You Have a Conned or
Unconned Space Using the Standard
Method
Use this work sheet to determine if you have
a conned or unconned space.
Space: Includes the room in which you will install
replace plus any adjoining rooms with door-
less 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 : Space size 20 ft. (length) x 16 ft.
(width) x 8 ft. (ceiling height) = 2560 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: 2560 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.
WARNING: If the area in which
the heater may be operated does not
meet the required volume for indoor
combustion air, combustion and
ventilation air shall be provided by
one of the methods described in the
NationalFuelGasCode,ANSI Z223.1/
NFPA 54, the International Fuel Gas
Code, or applicable local codes.

SuperiorFireplaces.us.com 126816-01E8
AIR FOR COMBUSTION AND VENTILATION
Continued
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation
grills or ducts. You must provide two perma-
nent openings: one within 12" of the ceiling
and one within 12" of the oor. 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, 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.
Figure 3 - Ventilation Air from Outdoors
Outlet
Air
Ventilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
INSTALLATION
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining
unconned space. When ventilating to an
adjoining unconned space, you must provide
two permanent openings: one within 12" of the
ceiling and one within 12" of the oor on the
wall connecting the two spaces (see options
1 and 2, Figure 2). You can also remove door
into adjoining room (see option 3, Figure 2).
Follow the National Fuel Gas Code, ANSI
Z223.1/NFPA 54, Air for Combustion and
Ventilation for required size of ventilation
grills or ducts.
Figure 2 - Ventilation Air from Inside Building
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills Into
Adjoining
Room,
Option 1
12"
12"
NOTICE: This appliance is intended
for supplemental heating. Use this
appliance along with your primary
heating system. Do not install this ap-
pliance as your primary heat source.
If you have a central heating system,
you may run system’s circulating
blower while using appliance. This
will help circulatethe heat throughout
the house. In the event of a power
outage, you can use this appliance
as your primary heat source.
WARNING: A qualied service
person must install appliance. Fol-
low all local codes.
NOTICE: State or local codes may only allow
operation of this appliance in a vented con-
guration. Check your state or local codes.
WARNING: Make sure the se-
lector switch is in the OFF position
before installing appliance.
WARNING:Any outside air ducts
and/or ash dumps in the replace
shall be permanently closed at time
of appliance installation.
WARNING: Seal any fresh air
vents or ash clean-out doors located
on oor or wall of replace. If not,
drafting may cause pilot outage
or sooting. Use a heat-resistant
sealant. Do not seal chimney ue
damper.

126816-01E 9
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INSTALLATION
Continued
CHECK GAS TYPE
Use the correct type of gas (natural or propane/
LP). If your gas supply is not the correct gas
type, do not install appliance. Call the dealer
where you purchased the appliance for proper
type appliance.
WARNING: This appliance is
equipped for either natural gas or
propane/LP gas but not both. Gas
type is indicated on the rating plate.
Field conversion is not permitted.
WARNING: Maintain the
minimum clearances. If you can,
provide greater clearances from
oor, ceiling and adjoining wall.
INSTALLATION AND CLEARANCES
FOR VENT-FREE OPERATION
MINIMUM FIREPLACE CLEARANCE
TO COMBUSTIBLE MATERIALS
Side Wall 16", Ceiling 42"
Floor 5", Front: 36"
LOG SIZING REQUIREMENTS
Log
Size
Minimum Firebox Size
Height Depth Front
Width
Rear*
Width
18" 19" 14" 28" 20"
24" 19" 14" 32" 22"
30" 19" 14" 40" 30"
Carefully follow the instructions below. This
will ensure safe installation into a masonry,
UL127-listed manufactured replace or listed
vent-free rebox.
Minimum Clearances For Side Combustible
Material, Side Wall and Ceiling
A. Clearances from the side of the replace
cabinet to any combustible material and
wall should follow diagram in Figure 4,
Page 10.
Example: The face of a mantel, book-
shelf, etc. is made of combustible material
and protrudes 3-1/2" from the wall. This
combustible material must be 4" from the
side of the replace cabinet (see Figure
4, Page 10).
WARNING: Before installing in
a solid fuel burning replace, the
chimney ue and rebox must be
cleaned of soot, creosote, ashes
and loose paint by a qualied chim-
ney cleaner. Creosote will ignite
if highly heated. A dirty chimney
ue may create and distribute soot
within the house. Inspect chimney
and rebox ue for damage. If
damaged, repair ue and rebox
before operating appliance.
WARNING: Never install the
appliance
• in a bedroom or bathroom
unless installed as a vented
appliance, see Page 12
• in a recreational vehicle
• where curtains, furniture, clothing
or other ammable objects are less
than 36" from front, 42" from top
of appliance; for side clearances
see Figure 4, Page 10
• in high trafc areas
• in windy or drafty areas
CAUTION: This appliance cre-
ates warm air currents. These cur-
rents move heat to wall surfaces
next to heater. Installing heater next
to vinyl or cloth wall coverings or
operating heater where impurities
(such as, but not limited to, tobacco
smoke, aromatic candles, cleaning
uids, oil or kerosene lamps, etc.)
in the air exist, may discolor walls
or cause odors.
IMPORTANT:Vent-free appliances add
moisture to the air. Although this is benecial,
installing appliance in rooms without enough
ventilation air may cause mildew to form from
too much moisture. See Air for Combustion
and Ventilation, Page 6.

SuperiorFireplaces.us.com 126816-01E10
INSTALLATION
Continued
NOTE: When installing your gas logs into
a manufactured rebox, follow rebox
manufacturer’s instructions for minimum
clearances to combustible materials.
B. Clearances from the top of the replace
opening to the ceiling should not be less
than 42".
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
Noncombustible
Material Distance
(A)
Requirements for
Safe Installation
1 2" or more Noncombustible mate-
rial OK.
Between 8" and 12" 24" or 30" Models:
Install replace hood ac-
cessory (GA6050 - see
Accessories, Page 34).
18" Model: Noncom-
bustible material OK.
Less than 8" Noncombustible mate-
rial must be extended
to at least 8". See
Between 8" and 12",
above. If you cannot
extend material, you
must operate appliance
with ue damper open.
Figure 4 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
*
Example
Minimum Noncombustible Material
Clearances
If Not Using Mantel
NOTE: If using a mantel proceed to If Using
Mantel. If not using a mantel, follow these
instructions.
You must have noncombustible material(s)
above the replace opening. Noncombustible
materials (such as slate, marble, tile, etc.) must
be at least 1/2" thick. With sheet metal, you
must have noncombustible material behind
it. Noncombustible material must extend at
least 8" up (for all models). If noncombustible
material is less than 12", you must install the
replace hood accessory (24" and 30" Models
Only). See Figure 5 for minimum clearances.
If Using Mantel
You must have noncombustible material(s)
above the replace opening. Noncombus-
tible materials (such as slate, marble, tile,
etc.) must be at least 1/2" thick. With sheet
metal, you must have noncombustible ma-
terial behind it. Noncombustible material
must extend at least 8" up (for all models). If
noncombustible material is less than 12", you
must install the replace hood accessory (24"
and 30" Models Only). Even if noncombustible
material is more than 12", you may need the
hood accessory to deect heat away from
your mantel shelf. See Figures 5, 6 and 7 on
Pages 10 and 11, for minimum clearances.
IMPORTANT:If you cannot meet these mini-
mum clearances, you must operate appliance
with chimney ue damper open. Go to Install-
ing Damper Clamp Accessory (Required For
Vented Applications), Page 12.
Heat Resistant
Material
(A)
NOTICE: Manual control appliances
may be used as a vented product. If
so, youmust always runappliance with
chimney flue damper open. If running
appliance with damper open, non-
combustible material above fireplace
openingisnotneeded. GotoInstalling
Damper Clamp Accessory (Required
For Vented Applications), Page 12.
Maintain adequate clearances for accessibility for purposes
of servicing and proper operation.

126816-01E 11
SuperiorFireplaces.us.com
INSTALLATION
Continued
MANTEL CLEARANCES
In addition to meeting noncombustible mate-
rial clearances, you must also meet required
clearances between replace opening and
mantel shelf. If you do not meet the clearances
listed below, you will need a hood.
Determining Minimum Mantel Clearance
If you meet minimum clearance between
mantel shelf and top of replace opening, a
hood is not required (see Figure 6).
Figure 6 - Minimum Mantel Clearances
Without Using Hood
Figure 7 - Minimum Mantel Clearances
When Using Hood
Minimum Non-
Combustible
Material
Minimum Non-
Combustible
Material Height
Distances to
Underside of
Mantel
Top of Fireplace
Opening
Underside of
Mantel Shelf
12"
8"
(A)
18"
14"
20"
17"
22"
19"
24"
20"
All minimum
distances are
in inches
Log Set
24"/30" Models
18" Model
2 1/2"
6"
8"
10"
Mantel Shelf
Minimum
Noncombustible
Material 8"
Min.
12" 15" 18" 20"
2
1/2
"
6"
8"
10"
12"
Distances to
Underside of
Mantel
Hood (GA6050
or GA6053)
Top of
Fireplace
Opening
Underside
of Mantel
Shelf
Mantel Shelf
FLOOR CLEARANCES
A. If installing appliance on the oor level,
you must maintain the minimum distance
of 14" to combustibles (see Figure 8).
B. If combustible materials are less than
14" to the replace, you must install ap-
pliance at least 5" above the top surface
of combustible ooring including tile and
carpet (see Figure 9).
Determining Minimum Mantel Clearance
When Using a Hood
If minimum clearances in Figure 6, are not
met, you must have a hood. When using a
hood there are still certain minimum mantel
clearances required. Follow minimum clear-
ances shown in Figure 7, when using hood.
Figure 8 - Minimum Fireplace Clearances
If Installed at Floor Level
Figure 9 - Minimum Fireplace Clearances
Above Combustible Flooring
14"
Min.
Combustible
Material
Noncombustible Material
Hearth
5"
Min.
Combustible
Material
Minimum clearance requirements include any projections such
as shelves, window sills, mantels, etc. above the appliance.
NOTICE: Surface temperatures of ad-
jacent walls and mantels become hot
during operation. Walls and mantels
above the rebox may become hot to
the touch. If installed properly, these
temperatures meet the requirement
of the national product standard. Fol-
low all minimum clearances shown
in this manual.
NOTICE: If your installation does
not meet the minimum clearances
shown, you must do one of the
following:
• operate the logs only with the
ue damper open
• raise the mantel to an accept-
able height
• remove the mantel

SuperiorFireplaces.us.com 126816-01E12
INSTALLATION
Continued
INSTALLING DAMPER CLAMP
ACCESSORY (REQUIRED FOR
VENTED APPLICATIONS)
NOTE: When used as a vented appliance, it
must be installed only in a solid-fuel-burning
replace with a working ue and constructed
of noncombustible material.
For Massachusetts Residents Only: Instal-
lation of this gas log set as a vented appliance
in the Commonwealth of Massachusetts re-
quires the damper be permanently removed
or welded in the fully open position.
If your appliance is a manually-controlled
model, you may use this appliance as a
vented product. There are three reasons for
operating your appliance in the vented mode.
1. The replace does not meet the clearance
to combustibles requirements for vent-
free operation.
2. State or local codes do not permit vent-
free operation.
3. You prefer vented operation.
If reasons number 1 or 2 above apply to you,
you must permanently open chimney ue
damper. You must install the damper clamp
accessory (to order, see Accessories, Pages
34-35). This will ensure vented operation
(see Figure 10). The damper clamp will keep
damper open. Installation instructions are
included with clamp accessory.
See chart below for minimum permanent ue
opening you must provide. Attach damper
clamp so the minimum permanent ue open-
ing will be maintained at all times.
Figure 10 - Attaching Damper Clamp
Damper
Damper
Clamp
Damper
Damper
Clamp
Damper
Manufactured Fireplace
Masonry Fireplace
WARNING: You must secure
this heater to replace oor. If not,
heater will move when you adjust
controls. Moving heater may cause
a gas leak or log misplacement.
WARNING: If installing in a
sunken fireplace, special care
is needed. You must raise the
replace oor to allow access to
heater control panel. This will en-
sure adequate air ow and guard
against sooting and controls being
damaged. Raise replace oor with
noncombustible material. Make
sure material is secure.
CAUTION: Do not pick up
heater base assembly by burners.
This could damage heater. Only
handle base assembly by grates.
IMPORTANT:Make sure the heater burners
are level. If appliance is not level, appliance
will not work properly.
INSTALLING APPLIANCE BASE
ASSEMBLY
Area of Various Standard Round Flues
Diameter Area
5"
6"
7"
8"
20 sq. inches
29 sq. inches
39 sq. inches
51 sq. inches
Chimney
Height
Minimum Permanent
Flue Opening
6' to 15'
15' to 30'
39 sq. inches
29 sq. inches

126816-01E 13
SuperiorFireplaces.us.com
INSTALLATION
Continued
Installation Items Needed
• hardware package (provided with appli-
ance)
• approved exible gas hose and ttings (only
provided with TF burner system series) (if
allowed by local codes)
• sealant (resistant to propane/LP gas, not
provided)
• electric drill with 3/16” masonry drill bit
NOTE: Install optional receiver and hand-held
remote control kit (see Accessories, Pages
34-35) before installing gas log appliance. See
installation instructions included with the kit.
1. Apply pipe joint sealant lightly to male
threads of the 1/2 NPT side of gas tting
elbow (provided) and connect to inlet
side of gas control. Remove gas tting
from exible gas hose (provided) before
connecting to elbow (see Figure 11).
2. Position appliance base assembly in
replace.
3. Mark screw locations through holes in
front panel of base (see Figure 12). If
installing in a brick-bottom replace, mark
screw locations in mortar joint of bricks.
4. Remove appliance base from replace.
5. Drill holes at marked locations using 3/16"
drill bit.
6. Attach base, through holes in back side pan-
els of base, to replace oor using masonry
screws provided in hardware package (see
Figure 12).
7. Connect to gas supply. See Connecting
To Gas Supply.
Figure 11 - Attaching Flexible Gas Hose
to Appliance Gas Regulator
Figure 12 - Attaching Base to Fireplace
Floor
Masonry Screw
Gas Control
Flexible Gas Hose
(Provided with VGC
Series Models Only)
(Install if allowed
by local codes)
Elbow, 3/8 NPT x
3/8 Flare
CONNECTING TO GAS SUPPLY
WARNING: This appliance
requires a 3/8" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.
WARNING: A qualied service
personmustconnect applianceto
gassupply.Followalllocal codes.
CAUTION: Never connect
propane/LP replace directly
to the propane/LP supply. This
heater requires an external regu-
lator (not supplied). Install the
external regulator between the
heater and propane/LP supply.
WARNING: Never connect
natural gas replace to private
(non-utility) gas wells. This gas
is commonly known as wellhead
gas.

SuperiorFireplaces.us.com 126816-01E14
Installation Items Needed
Before installing appliance, make sure you
have the items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
• approved exible gas line with gas connec-
tor (if allowed by local codes) (not provided)
* An equipment shutoff valve with 1/8" NPT
tap is an acceptable alternative to test gauge
connection.
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" of water. If you do not
reduce incoming gas pressure, appliance
regulator damage could occur. Install exter-
nal regulator with the vent pointing down as
shown in Figure 13. Pointing the vent down
protects it from freezing rain or sleet. Figure 13 - External Regulator With Vent
Pointing Down
Propane/LP
Supply Tank External
Regulator
with Vent
Pointing
Down
INSTALLATION
Continued
**Minimum inlet pressure for purpose of input
adjustment.
Figure 14 - Gas Connection
Pipe Cap Tee
Nipple Joint
Gas
Control
3" Minimum
Sediment Trap
Approved Flexible
Gas Hose (if
allowed by local
codes)
PROPANE/LP
From External
Regulator
(11" W.C.**
to 14" W.C.
Pressure)
NATURAL
From Gas
Meter
(5" W.C.**
to 10.5"
W.C.
Pressure)
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
Check your building codes for any special
requirements for locating equipment shutoff
valve to appliances.
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 appliance valves.
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 heater. 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. Lo-
cate NPT tap within reach for test gauge hook
up. NPT tap must be upstream from appliance
(see Figure 14).
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.

126816-01E 15
SuperiorFireplaces.us.com
INSTALLATION
Continued
We recommend that you install a sediment
trap in supply line as shown in Figure 14,
Page 14. Locate sediment trap where it is
within reach for cleaning. Install in piping
system between fuel supply and appliance.
Locate sediment trap where trapped matter
is not likely to freeze. A sediment trap traps
moisture and contaminants. This keeps them
from going into appliance controls. If sediment
trap is not installed or is installed wrong, ap-
pliance may not run properly.
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 uid to
all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect appliance and equipment
shutoff valve to gas supply. Check recon-
nected ttings for leaks.
Test Pressures Equal To or Less Than 1/2
PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Fig-
ure 15).
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 equip-
ment shutoff valve for natural gas or
propane/LP supply to equipment shutoff
valve for propane/LP (see Figures 16 or
17 on Pages 15 and 16). Apply noncor-
rosive leak detection uid to all joints.
Bubbles forming show a leak.
4. Correct all leaks at once.
Figure 15 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff
Valve
Figure 16 - Checking Gas Joints
(Propane/LP Only)
Control Valve
Location
Propane/LP
Supply Tank
Equipment
Shutoff Valve
CAUTION: Avoid damage to
gas control. Hold gas control
with wrench when connecting
it to gas piping and/or ttings.
WARNING: Test all gas piping
and connections, internal and
external to unit, for leaks after
installing or servicing. Correct
all leaks at once.
WARNING: Never use an
open ame to check for a leak.
Apply a noncorrosive leak detec-
tion uid 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 appliance. See guidelines
under Connecting to Gas Sup-
ply, Page 13.
CHECKING GAS CONNECTIONS
PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect appliance with its appliance
main gas valve (control valve) and equip-
ment shutoff valve from gas supply piping
system. Pressures in excess of 1/2 psig
will damage appliance regulator.
2. Cap off open end of gas pipe where equip-
ment shutoff valve was connected.

SuperiorFireplaces.us.com 126816-01E16
PRESSURE TESTING APPLIANCE GAS
CONNECTIONS
1. Open equipment shutoff valve (see Figure
15, Page 15).
2. Open main gas valve located on or near
gas meter for natural gas or open pro-
pane/LP supply tank valve.
3. Make sure control knob of appliance is in
the OFF position.
4. Check all joints from gas meter to equip-
ment shutoff valve for natural gas or
propane/LP supply to equipment shutoff
valve for propane/LP (see Figure 16, Page
15 or Figure 17). Apply noncorrosive leak
detection uid to all joints. Bubbles forming
show a leak.
5. Correct all leaks at once.
6. Light appliance (see Operation, Page 25).
Check all other internal joints for leaks.
7. Turn off appliance (see To Turn Off Gas to
Appliance, Page 26.
INSTALLING SWITCH
The AUTO/OFF/ON switch for this log set is
installed into the small single log accompany-
ing this log set. This switch needs to be used
only if remote or wall switch is not being used.
Connect the wires to the valve from the switch
assembly as shown in Figure 18.
Gas Meter
Figure 17 - Checking Gas Joints (Natural
Gas Only)
Control Valve
Location
Equipment Shutoff Valve
INSTALLATION
Continued
Figure 18 - Connecting Wires
Control Valve
To AUTO
Terminal
on Switch
To OFF
Terminal on
Switch
WARNING: Turn offappliance
and let cool before handling any
part of appliance. Make sure gas
is turned of to unit.
WARNING: A qualied ser-
vice person must connect and
disconnect gas to appliance.
Follow all local codes.
INSTALLING OPTIONAL REMOTE
(ACCESSORY)
Installing Remote Receiver
Remote control accessories are available
separately (see Accessories, Pages 34-35).
Read instructions shipped with remote control
along with instructions below before attempt-
ing installation.
1. If unit is already installed in replace, con-
tinue with these instructions. If unit has not
been installed in replace, go to step 6 and
continue installation of remote accessory.
2. Carefully remove logs and set aside.
3. Locate mounting screws on sides of appli-
ance base assembly and remove screws.
Set screws aside for reinstallation.
4. Disconnect gas line from appliance base
as shown in Figure 11, Page 13.
5. Remove appliance base from replace.
6. If installed, disconnect AUTO/OFF/ON
switch wire from control valve at TPTH and
TH locations (see Figure 19, Page 17).
7. Connect wires from hardware pack (with
remote receiver bracket) to control valve
at the TPTH and TH locations as shown in
Figure 19, Page 17. Connect other ends
of these wires to remote receiver wires.
NOTE: Make sure excess wire does not
interfere with burner or pilot.
8. If appliance was removed from replace
before installation of remote accessory,
see Installing Appliance Base Assembly on
Page 12 to reinstall appliance into replace.
Test gas connection for leaks (see Checking
Gas Connections, Page 15).
9. If logs were removed from appliance for
install remote accessory, replace logs
(see Installing Logs,Embers and Volcanic
Stone, Pages 17-24).
10. Place remote receiver on replace oor
next to control valve. Make sure the remote
receiver and wires are not on or touching
either gas burner on the log set.

126816-01E 17
SuperiorFireplaces.us.com
INSTALLATION
Continued
Figure 19- Disconnecting Switch from
Control Valve
Switch
Control
Valve
Figure 20 TF Series Burner System - Log
Compatibility Chart
LTF(18,24,30)-MM LOG PLACEMENT
It is very important to install the logs exactly
as instructed. Do not modify logs. Only use
logs supplied with appliance or as identied
for use with the appliance as shown in Figure
20, Page 17. Each log includes reference
numbers formed in the bottom or back of the
log. The circled number indicates the order it
is placed on the burner system. The remaining
numbers indicate the size burner system the
logs are designed to t. For example, the rst
log for a 24 inch burner system will include a
circled 1 and also a 24. The circled 1 indicates
this is the rst log to be installed. The 24 in-
dicates this log belongs to a 24 inch log set.
1. Place the rear log (#1) on base assembly
as shown in Figure 21. Log will t over
right end of burner and rest in middle of
U-burner.
Figure 21 - Installing Log # 1
1
''U'' -
Burner
Base
assembly
2. Place the middle log (#2) in front of the
U-burner and against the edges of the
plate as shown in Figure 22, Page 18.
3. Place the front left log (#3) onto the base
assembly between the middle log (#2)
and the grate ngers. The back of the
front left log (#3) will rest against the front
of the middle log (#2). The notch at the
end of the front left log (#3) will t around
the grate bar. See Figure 23, Page 18.
4. Place the front right log (#4) onto the base
assembly between the middle log (#2)
and the grate. The back of the front right
log (#4) will rest against the front of the
middle log (#2). The notch in the end of
the front right log (#4) will t around the
grate bar. See Figure 24, Page 18.
TF Series Burner System - Log
Compatibility Chart
Burner
System
Models
Fiber Log
Models
Concrete
Log Mod-
els
TF18NR
TF18PR LTF18MM LTF18-RS LTF18WT
TF2430NR
TF2430PR
LTF24MM
LTF30MM
LTF24-RS
LTF30-RS
LTF24WT
LTF30WT
WARNING: Failure to posi-
tion the parts in accordance
with these diagrams or failure
to use only parts specically
approved with this appliance
may result in property damage
or personal injury.
CAUTION: After installa-
tion and periodically thereafter,
check to ensure that no ame
comes in contact with any log.
With appliance set to Hi, check
to see if ames contact any log.
If so, reposition logs according
to log installation instructions in
this manual. Flames contacting
logs will create soot.
INSTALLING LOGS, EMBERS AND
VOLCANIC STONE

SuperiorFireplaces.us.com 126816-01E18
INSTALLATION
Continued
Figure 26 - Installing Log # 6
Figure 25 - Installing Log # 5
Figure 24 - Installing Log # 4
Figure 23 - Installing Log # 3
Figure 22 - Installing Log # 2
2
3
6. Place the left top forked log (#6) on the top
of the middle log (#2). Match the rectangu-
lar projection on top of the middle log (#2)
with the rectangular hole on the bottom of
the left top forked log (#6). Match the metal
pin on teh top of the middle log (#2) with
the round hold in the bottom of the left top
forked log (#6). See Figure 26.
4
5
Metal
Pin
Rectangular
Peg
6
Rectangular
Peg
Metal
Pin
5. Place the left back top log (#5) on top of
the rear log (#1). Match the rectangular
peg on top of the left side of the rear log
(#1) with the rectangular hole on the bot-
tom of the left back top log (#5). Match
the metal pin on the top of the rear log
(#1) with the round hole in the bottom of
the left back top log (#5). See Figure 25.

126816-01E 19
SuperiorFireplaces.us.com
INSTALLATION
Continued
Figure 29 - Installing Log # 9
Figure 28 - Installing Log # 8
Figure 27 - Installing Log # 7
7. Place the right rear chunk log (#7) on top
of the middle log (#2) and rear log (#1)
as shown in Figure 27. Match the round
peg on the top of the rear log (#1) with
the round hole on the bottom of the right
rear chunk (#7) log and square peg on the
top of the middle log (#2) with the square
hole on the bottom of the right rear chunk
log (#7).
8. Place the front right mid log (#8) on top of
the front right log (#4) as shown in Figure
28. Match the round metal pin on the top
of the front right log (#4) with the round
hole on the bottom of the front right mid
log (#8).
9. Place the top right log (#9) on top of the
right rear chunk log (#7) and front right
mid log (#8) as shown in Figure 29.
Match the round peg on the top of the right
rear chunk log (#7) with the round hole on
the bottom of the top right log (#9) and
square peg on the top of the front right
mid log (#8) with the square hole on the
bottom of the top right log (#9).
9
Round
Peg
Square
Peg
7
Round
Peg
Square Peg
10. Place the right rear top log (#10) on top of
the right rear chunk log (#7) as shown in
Figure 30, Page 20. Match the rectangu-
lar peg on the top of the right rear chunk
log (#7) with the rectangular hole on the
bottom of the right rear top log (#10).
11. Place the left top log (#11) on top of the
left back top log (#5) and left top forked
log (#6) as shown in Figure 31, Page 20.
Match the round peg on the top of the left
top forked log (#6) with the round hole on
the bottom of the top left log (#11) and
rectangular peg on the top of the left back
top log (#5) with the rectangular hole on
the bottom of the top left log (#11).
12. Final Assembly is shown in Figure 32,
Page 20.
8
Metal Pin

SuperiorFireplaces.us.com 126816-01E20
Figure 30 - Installing Log # 10
Figure 31 - Installing Log # 11
INSTALLATION
Continued
10
Figure 32 - Final Assembly
Figure 33 - Installing Bottom Ember Log
Figure 34 - Installing Rear Log
11
Square
Peg
Round
Peg
LTF(18,24,30)-RS LOG PLACEMENT
It is very important to install the logs exactly
as instructed. Do not modify logs. Only use
logs supplied with appliance or as identied
for use with the appliance as shown.
1. Place bottom ember log on base as-
sembly as shown in Figure 33. The log
should t over the left side of the burner
and rest in the middle of the U-burner.
2. Place the rear log on the base assembly
as shown in Figure 34. The rear log has
grooves in the bottom which will allow
the log to sit on the burner and behind
the bottom ember log.
Base Assembly
Burner
Tube
Bottom Ember Log
Rear Log
Burner Tube